Multimodality of critical strength for incipient plasticity in L12-precipitated (CoCrNi)94Al3Ti3 medium-entropy alloy: coherent interface-facilitated dislocation nucleation

Q. Zhang, J. Qiao, Y. Zhao, J.-i. Jang, U. Ramamurty, submitted for publication.

Heat transfer and microstructures in nodes and struts of face-centered cubic lattice structure during laser powder bed fusion

M.R. Hashmia, S.Y. Ahn, G. Lee, J.-i. Jang, Z. Gao, R. Wu, H.S. Kim, submitted for publication.

Microstructural refinement in a high elastic modulus Al-18Si-8Ni casting alloy

Y.-H. Lee, S.H. Kayani, J.-M. Lee, S.-I. Lee, S.-J. Kim, J.-i. Jang, Y.-H. Cho, Journal of Alloys and Compounds, vol. 1008 (2024) Art. No. 176580.

Integrated experimental and computational study on the effect of hydrogen in mechanical responses of pure tungsten

Y. Oh, S. Sung, J.-i. Jang, W.-S. Ko, H.N. Han, Acta Materialia, vol. 280 (2024) Art. No. 120341.

Stochastic nature of incipient plasticity in a body-centered cubic medium-entropy alloy

A-H. Jeon, Y. Zhao, Z. Gao, J.-Y. Suh, H.J. Ryu, H.S. Kim, U. Ramamurty, J.-i. Jang, Acta Materialia, vol. 278 (2024) Art. No. 120244.

Severe plastic deformation for producing superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary review

K. Edalati, A.Q. Ahmed; S. Akrami, K. Ameyama, V. Aptukov, R.N. Asfandiyarov, M. Ashida, V. Astanin, A. Bachmaier, V. Beloshenko, E.V. Bobruk, K. Bryła, J.M. Cabrera, A.P. Carvalho, N.Q. Chinh, I.-C. Choi, R. Chulist, J.M. Cubero-Sesin, G. Davdian, M. Demirtas, S. Divinski, K. Durst, J. Dvorak, P. Edalati, S. Emura, N.A. Enikeev, G. Faraji, R.B. Figueiredo, R. Floriano, M. Fouladvind, D. Fruchart, M. Fuji, H. Fujiwara, M.l Gajdics, D. Gheorghe, K. Gondek, J.E. González-Hernández, A. Gornakova, T. Grosdidier, J. Gubicza, D. Gunderov, L. He, O.F. Higuera, S. Hirosawa, A. Hohenwarter, Z. Horita, J. Horky, Y. Huang, J. Huot, Y. Ikoma, T. Ishihara, Y. Ivanisenko, J.-i. Jang, A.M. Jorge Jr, M. Kawabata-Ota, M. Kawasaki, T. Khelfa, J. Kobayashi, L. Kommel, A. Korneva, P. Kral, N. Kudriashova, S. Kuramoto, T.G. Langdon, D.-H. Lee, V.I. Levitas, C. Li, H.-W. Li, Y. Li, Z. Li, H.-J. Lin, K.-D. Liss, Y. Liu, D.M.M. Cardona, K. Matsuda, A. Mazilkin, Y. Mine, H. Miyamoto, S.-C. Moon, T. Müller, J.A. Muñoz, M.Y. Murashkin, M. Naeem, M. Novelli, D. Olasz, R. Pippan, V.V. Popov, E.N. Popova, G. Purcek, P. de Rango, O. Renk, D. Retraint, Á. Révész, V. Roche, P. Rodriguez-Calvillo, L. Romero-Resendiz, X. Sauvage, T. Sawaguchi, H. Sena, H. Shahmir, X. Shi, V. Sklenicka, W. Skrotzki, N. Skryabina, F. Staab, B. Straumal, Z. Sun, M. Szczerba, Y. Takizawa, Y. Tang, R.Z. Valiev, A. Vozniak, A. Voznyak, B. Wang, J.T. Wang, G. Wilde, F. Zhang, M. Zhang, P. Zhang, J. Zhou, X. Zhu, Y.T. Zhu,

Journal of Alloys and Compounds, vol. 1002 (2024) Art. No. 174667.

(review paper by 122 authors from 14 countries)

Heterostructuring of BN-CoCrFeMnNi high-entropy alloy via severe plastic deformation

S. Son, R.E. Kim, J. Lee, D.W. Lee, J.-i. Jang, H.S. Kim, Materials Science and Engineering A, vol. 909 (2024) Art. No. 146859.

Shear deformation behavior of heterostructured materials: Experimental and numerical analyses

G.H. Gu, S.-Y. Lee, M.H. Seo, J.-i. Jang, H.S. Kim, Metals and Materials International, vol. 30 (2024) pp. 1256-1269.

Hydrogen trapping and micromechanical behavior in additively manufactured CoCrFeNi high-entropy alloy in as-built and pre-strained conditions

Z. Gao, D.-H. Lee, Y. Zhao, P. Wang, K. Murakami, S. Komazaki, J.-Y. Suh, H.S. Kim, U. Ramamurty, J.-i. Jang, Acta Materialia, vol. 271 (2024) Art. No. 119886.

On the superelastic behavior during spherical nanoindentation of a Ni-Ti shape memory alloy

H. Li, Z. Gao, J.-Y. Suh, H.N. Han, U. Ramamurty, J.-i. Jang, Materialia, vol. 33 (2024) Art. No. 102020.

Supreme tensile properties in precipitation-hardened 316L stainless steel fabricated through powder cold-consolidation and annealing

D.W. Lee, P. Asghari-Rad, Y.-U. Heo, S. Son, H. Park, J.-S. Lee, J.-i. Jang, B.-J. Lee, H.S. Kim, Materials Science and Engineering A, vol. 893 (2024) Art. No. 146107.

Impact of uneven distribution of grain characteristics on yield strength and martensite transformation of as-hot-rolled medium-entropy alloys

J. Lee, H. Park, S. Son, J.W. Bae, J.Y. Kim, S.K. Kim, J.-i. Jang, H.S. Kim, Journal of Materials Science & Technology, vol. 177 (2024) pp. 234-235.

Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation

S. Son, J. Lee, P. Asghari-Rad, R.E. Kim, H. Park, J.-i. Jang, W.Chen, Y.-U. Heo, H.S. Kim, Materials Research Letters, vol. 11 (2023) pp. 915-924.

A statistical analysis of the second ‘pop-in’ behaviour of the spherical-tip nanoindentation of Zr-based bulk metallic glasses

P. Saini, S. Nag, J.-i. Jang, I.-C. Choi, U. Ramamurty, R.L. Narayan, Materialia, vol. 31 (2023) Art. No. 101862.

A review of recent research on nanoindentation of high-entropy alloys processed by high-pressure torsion

D.-H. Lee, I.-C. Choi, M. Kawasaki, T.G. Langdon, J.-i. Jang, Materials Transactions, vol. 64 (2023) pp. 1551-1565.

(invited overview paper in the special issue on "Superfunctional Nanomaterials by SPD: Fundamentals and Potential Applications")

Enhanced mechanical properties and homogeneous T5 age-hardening behavior of Al-Si-Cu-Mg casting alloys

H.-W. Son, J.-Y. Lee, Y.-H. Cho, J.-i. Jang, S.-B. Kim, J.-M. Lee, Journal of Alloys and Compounds, vol. 960 (2023) Art. No. 170982.

Crucial role of Ce particles during initial hydrogen absorption of AB-type hydrogen storage alloys

T. Ha, J.-H. Kim, C. Sun, Y.-S. Lee, D.-I. Kim, J.-i. Jang, J. Lee, Y. Kim, J.-H. Shim, Nano Energy, vol. 112 (2023) Art. No. 108483.

A study on the interaction between a Sr modifier and an Al-5Ti-1B grain refiner in an Al-7Si-0.35Mg casting alloy

J.-Y. Lee, J.-M. Lee, K.-S. Son, J.-i. Jang, Y.-H. Cho, Journal of Alloys and Compounds, vol. 938 (2023) Art. No. 168598.

Microstructure and shear strength of Au-20wt%Sn solder joints fabricated by thermos-compression bonding for LED packages

D.-h. Lee, J.-i. Jang, Y.-H. Kim, Journal of Materials Science: Materials in Electronics, vol. 33 (2022) pp. 11002-11016.

Rate-dependent mechanical behavior of single-, bi-, twinned, and poly-crystals of CoCrFeNi high-entropy alloy

S. Wei, Y. Zhao, J.-i. Jang, U. Ramamurty, Journal of Materials Science & Technology, vol. 120 (2022) pp. 253-264.

Decoupling the roles of constituent phases in the strengthening of hydrogenated nanocrystalline dual-phase high-entropy alloys

Z. Gao, Y. Zhao, J.-M. Park, A-H. Jeon, K. Murakami, S. Komazaki, K. Tsuchiya, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 210 (2022) Art. No. 114472.

Nanomechanical and microstructural characterization on the synergetic strengthening in selectively laser melted austenitic stainless steel

D.-H. Lee, Z. Gao, J.-M. Park, Y. Zhao, J.-Y. Suh, E.A. Jägle, K. Tsuchiya, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 209 (2022) Art. No. 114359.

Small-scale analysis of brittle-to-ductile transition behavior in pure tungsten

Y. Oh, W.-S. Ko, N. Kwak, J.-i. Jang, T. Ohmura, H.N. Han, Journal of Materials Science & Technology, vol. 105 (2022) pp. 242-258.

Design of V-substituted TiFe-based alloy for target pressure range and easy activation

M. Faisal, J.-H. Kim, Y.-W. Cho, J.-i. Jang, J.-Y. Suh, J.-H. Shim, Y.-S. Lee, Materials, vol. 14 (2021) Art. No. 4829.

(Feature paper in Special Issue on Applications, Optimization, and Comprehensive Characterization of Hydrogen Storage Materials)

Corrosion and oxidation resistance behaviors of Ta-containing low alloying zirconium

I.-H. Kim, Y.-I. Jung, B.-K. Choi, H.-G. Kim, J.-i. Jang, Metals and Materials International, vol. 27 (2021) pp. 3079-3084.

Indentation of glasses

T. Rouxel, J.-i. Jang, U. Ramamurty, Progress in Materials Science, vol. 121 (2021) Art. No. 100834.

Exploring the hydrogen absorption and strengthening behavior in nanocrystalline face-centered cubic high-entropy alloys

Y. Zhao, J.-M. Park, K. Murakami, S. Komazaki, M. Kawasaki, K. Tsuchiya, J.-Y. Suh, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 203 (2021) Art. No. 114069.

Hierarchical refinement of primary phases in a multicomponent Al-14Si-CuNiMg casting alloy by ultrasonic melt treatment

M.-S. Jo, Y.-H. Cho, J.-M. Lee, S.-B. Kim, J.-Y. Kang, J.-G. Jung, J.-i. Jang, Materialia, vol. 16 (2021) Art. No. 101070.

Oxidation-resistant coating of FeCrAl on Zr-alloy tubes using 3D printing direct energy deposition

I.-H. Kim, Y.-I. Jung, H.-G. Kim, J.-i. Jang, Surface & Coatings Technology, vol. 411 (2021) Art. No. 126915.

Significance of grain refinement on micro-mechanical properties and structures of additively-manufactured CoCrFeNi high-entropy alloy

W. Zhao, J.-K. Han, Y.O. Kuzminova, S.A. Evlashin, A.P. Zhilyaev, A.M. Pesin, J.-i. Jang, K.-D. Liss, M. Kawasaki, Materials Science and Engineering A, vol. 807 (2021) Art. No. 140898.

Hydrogen uptake and its influence in selective laser melted austenitic stainless steel: A nanoindentation study

J.-M. Park, Y. Zhao, T. Voisin, D.-H. Lee, S. Komazaki, Y. Ko, D.-I. Kim, J.-Y. Suh, H.N. Han, Y.M. Wang, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 194 (2021) Art. No. 113718.

Bimodality of incipient plastic strength in face-centered cubic high-entropy alloys

Y. Zhao, J.-M. Park, J.-i. Jang, U. Ramamurty, Acta Materialia, vol. 202 (2021) pp. 124-134.

Size effect on microstructural evolution and micromechanical responses of mechanically bonded aluminum and magnesium by high-pressure torsion

J.-K. Han, J.-M. Park, W. Ruan, K.T. Carpenter, A. Tabei, J.-i. Jang, M. Kawasaki, Advanced Engineering Materials, vol. 22 (2020) Art. No. 1900971.

(invited article in the special section for "Ultrafine-Grained Metallic Materials and Coatings")

Direct nanofluidic channels via hardening and wrinkling of thin polymer films

J.H. Lee, W.J. Chang, W.Y. Choi, J.-M. Park, J.-i. Jang, W.I. Park, Nanoscale, vol. 12 (2020) pp. 16895-16900.

Mechanical properties and structural stability of a bulk nanostructured metastable aluminum-magnesium system

J.-K. Han, K.-D. Liss, T.G. Langdon, J.-i. Jang, M. Kawasaki, Materials Science and Engineering A, vol. 796 (2020) Art. No. 140050.

Statistical nature of the incipient plasticity in amorphous alloys

S. Nag, R.L. Narayan, J.-i. Jang, C. Mukhopadhyay, U. Ramamurty, Scripta Materialia, vol. 187 (2020) pp. 360-365.

Synthesis of hybrid nanocrystalline alloys by mechanical bonding through high-pressure torsion

J.-K. Han, T. Herndon, J.-i. Jang, T.G. Langdon, M. Kawasaki, Advanced Engineering Materials, vol. 22 (2020) Art. No. 1901289.

(invited review as "Hall of Fame Article")

Effect of grain size on the strain rate sensitivity of CoCrFeNi high-entropy alloy

Y. Zhao, X. Wang, T. Cao, J.-K. Han, M. Kawasaki, J.-i. Jang, H.N. Han, U. Ramamurty, L. Wang, Y. Xue, Materials Science and Engineering A, vol.782 (2020) Art. No. 139281.

Wallpapering-inspired spreading and wrinkling of atomically-thin material

S.I. Lee, H.-G. Lim, S.S. Kwon, S.H. Kim, J.H. Lee, J.-M. Park, J.-i. Jang, S.I. Yang, W.I. Park, Applied Surface Science, vol. 507 (2020) Art. No. 145184.

A new Zr-rich intermetallic phase in an Al-14Si-3Cu-4.5Ni casting alloy with trace additions of Zr

M.-S. Jo, Y.-H. Cho, J.-M. Lee, S.-H. Kim, J.-Y. Kang, J.-G. Jung, S.-B. Kim, J.-i. Jang, Intermetallics, vol. 117 (2020) Art. No. 106667.

Mechanical bonding of aluminum hybrid alloy systems through high-pressure torsion

M. Kawasaki, S.H. Jung, J.-M. Park, J. Lee, J.-i. Jang, J.-K. Han, Advanced Engineering Materials, vol. 22 (2020) Art. No. 1900483.

(invited article in the special issue dedicated to Terence G. Langdon on the occasion of his 80th birthday)

A survey of nanoindentation studies on HPT-processed materials

I.-C. Choi, J.-i. Jang, Advanced Engineering Materials, vol. 22 (2020) Art. No. 1900648.

(invited review in the special issue dedicated to Terence G. Langdon on the occasion of his 80th birthday; selected as cover picture paper)

Bulk-state reactions and improving the mechanical properties of metals through high-pressure torsion

J.-K. Han, J.-i. Jang, T. Langdon, M. Kawasaki, Materials Transactions, vol. 60 (2019) pp. 1131-1138.

(invited overview paper in the special issue on SPD for nanomaterials with advanced functionality)

(selected as one of the 10 most highly cited papers published in Materials Transactions in 2020; see here)

Influences of hydrogen charging method on the hydogen distribution and nanomechanical properties of face-centered cubic high-entropy alloy: A comparative study

Y. Zhao, J.-M Park, D.-H. Lee, E.J. Song, J.-Y. Suh, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 168 (2019) pp. 76-80.

Nano-graining a particle-strengthened high-entropy alloy

D.-H. Lee, J.-M Park, G. Yang, J. He, Z. Lu, J.-Y. Suh, M. Kawasaki, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 163 (2019) pp. 24-28.

Influence of hydrogen on incipient plasticity in CoCrFeMnNi high-entropy alloy

G. Yang, Y. Zhao, D.-H. Lee, J.-M Park, M.-Y. Seok, J.-Y. Suh, U. Ramamurty, J.-i. Jang, Scripta Materialia, vol. 161 (2019) pp. 23-27.

Direct bonding of aluminum-copper metals through high-pressure torsion processing

J.-K. Han, D.K. Han, G.Y. Liang, J.-i. Jang, T.G. Langdon, M. Kawasaki, Advanced Engineering Materials, vol. 20 (2018) Art. No. 1800642.

Fabrication of nanocomposite through diffusion bonding under high-pressure torsion

M. Kawasaki, J.-K. Han, D.-H. Lee, J.-i. Jang, T. Langdon, Journal of Materials Research, vol. 33 (2018) pp. 2700-2710.

(invited feature paper)

Activation energy for plastic flow in nanocrystalline CoCrFeMnNi high-entropy alloy: A high temperature nanoindentation study

D.-H. Lee, I.-C. Choi, G. Yang, Z. Lu, M. Kawasaki, U. Ramamurty, R. Schwaiger, J.-i. Jang, Scripta Materialia, vol. 156 (2018) pp. 129-133.

Effects of interfacial layer-by-layer nanolayers on the stability of the Cu TSV: Diffusion barrier, adhesion, conformal coating, and mechanical property

D. Jeong, R. Abdur, Y.-C. Joo, J.-i. Jang, P.R. Cha, J.Kim, K.-S. Min, J. Lee, Materials Science in Semiconductor Processing, vol. 83 (2018) pp. 33-41.

The influence of chemical heterogeneities on the local mechanical behavior of a high-entropy alloy: A micropillar compression study

A. Heczel, M. Kawasaki, D. Ugi, J.-i. Jang, T. G. Langdon, J. Gubicza, Materials Science and Engineering A, vol. 721 (2018) pp.165-167.

Unusual flow behavior of Fe-based soft magnetic amorphous ribbons under high temperature tensile loading

J. Oh, J.-Y. Suh, W.-J. Kim, J.-i. Jang, K.H. Kang, C.S. Yoon, H. Choi-Yim, Current Applied Physics, vol. 18 (2018) pp.411-416.

Influence of pre-strain on the gaseous hydrogen embrittlement resistance of a high-entropy alloy

Y. Zhao, D.-H. Lee, W.-J. Kim, M.-Y. Seok, J.-Y. Kim, H.N. Han, J.-Y. Suh, U. Ramamurty, J.-i. Jang, Materials Science and Engineering A, vol. 718 (2018) pp.43-47.

Indentation size effect for spherical nanoindentation on nanoporous gold

Y.-C. Kim, E.-J. Gwak, S.-m. Ahn, N.-R. Kang, H.N. Han, J.-i. Jang, J.-Y. Kim, Scripta Materialia, vol. 143 (2018) pp.10-14.

Annealing effect on plastic flow in nanocrystalline CoCrFeMnNi high-entropy alloy: A nanomechanical analysis

D.-H. Lee, J.-A Lee, Y. Zhao, Z. Lu, J.-Y. Suh, J.-Y. Kim, U. Ramamurty, M. Kawasaki, T.G. Langdon, and J.-i. Jang, Acta Materialia, vol. 140 (2017) pp.443-451.

Indentation size effect in nanoporous gold

Y.-C. Kim, E.-J. Gwak, S.-m. Ahn, J.-i. Jang, H.N. Han, and J.-Y. Kim, Acta Materialia, vol. 138 (2017) pp.52-60.

Significant strengthening of nanocrystalline Ni sub-micron pillar by cyclic loading in elastic regime

J.-A Lee, D.-H. Lee, M.-Y. Seok, I.-C. Choi, H.N. Han, T.Y. Tsui, U. Ramamurty, and J.-i. Jang, Scripta Materialia, vol. 140 (2017) pp.31-34.

Critical bending radius of thin single-crystalline silicon with dome and pyramid surface texturing

J.-H. Woo, Y.-C. Kim, S.-H. Kim, J.-i. Jang, H.N. Han, K.-J. Choi, I. Kim, and J.-Y. Kim, Scripta Materialia, vol. 140 (2017) pp.1-4.

Wall-thickness-dependent strength of nanotubular ZnO

N.-R. Kang, Y.-C. Kim, H. Jeon, S.K. Kim, J.-i. Jang, H.N. Han, and J.-Y. Kim, Scientific Reports, vol. 7 (2017) Art. No. 4327.

Micro-mechanical response of an Al-Mg hybrid system synthesized by high-pressure torsion

M. Kawasaki and J.-i. Jang, Materials, vol. 10 (2017) Art. No. 596.

(invited review for the special issue on "Advanced Nanoindentation in Materials")

Self-similarity in the structure of coarsened nanoporous gold

H. Jeon, N.-R. Kang, E.-J. Gwak, J.-i. Jang, H. N. Han, J. Y. Hwang, S. Lee, and J.-Y. Kim, Scripta Materialia, vol. 137 (2017) pp.46-49.

Defect structure and hardness in nanocrystalline CoCrFeMnNi high-entropy alloy processed by high-pressure torsion

A. Heczel, M. Kawasaki, J. L. Labar, J.-i. Jang, T.G. Langdon, and J. Gubicza, Journal of Alloys and Compounds, vol. 711 (2017) pp.143-154.

Resistance of CoCrFeMnNi high-entropy alloy to gaseous hydrogen embrittlement

Y. Zhao, D.-H. Lee, M.-Y. Seok, J.-A Lee, M. P. Phaniraj, J.-Y. Suh, H.-Y. Ha, J.-Y. Kim, U. Ramamurty, and J.-i. Jang, Scripta Materialia, vol. 135 (2017) pp.54-58.

Hydrogen-induced nanohardness variations in a CoCrFeMnNi high-entropy alloy

Y. Zhao, D.-H. Lee, J.-A Lee, W.-J. Kim, H.N. Han, U. Ramamurty, J.-Y. Suh, and J.-i. Jang, International Journal of Hydrogen Energy, vol. 42 (2017) pp.12015-12021.

A novel way to estimate the nanoindentation hardness of only-irradiated layer and its application to ion irradiated Fe-12Cr alloy

H.-S. Kim, D.-H. Lee, M.-Y. Seok, Y. Zhao, W.-J. Kim, D. Kwon, H.-H. Jin, J. Kwon, and J.-i. Jang, Journal of Nuclear Materials, vol. 487 (2017) pp.343-347.

Strengthening of metals through severe plastic deformation

M. Kawasaki, H.-J. Lee, J.-i. Jang, and T.G. Langdon, Reviews on Advanced Materials Science, vol. 48 (2017) pp.13-24.

(invited review for honoring Prof. Ilya Ovid'ko on the occasion of his 55th birthday)

Statistical analysis of the size- and rate-dependence of yield and plastic flow in nanocrystalline copper pillars

J.-A Lee, M.-Y. Seok, Y. Zhao, I.-C. Choi, D.-H. Lee, B.B. Seo, U. Ramamurty, T.Y. Tsui, and J.-i. Jang, Acta Materialia, vol. 127 (2017) pp.332-340.

Nano- and micro-mechanical properties of ultrafine-grained materials processed by severe plastic deformation techniques

M. Kawasaki, B. Ahn, P. Kumar, J.-i. Jang, and T.G. Langdon, Advanced Engineering Materials, vol. 19 (2017) Art. No. 1600578.

(invited review)

Micro-mechanical and tribological properties of aluminum-magnesium nanocomposites processed by high-pressure torsion

J.-K Han, H.-J. Lee, J.-i. Jang, M. Kawasaki, and T.G. Langdon, Materials Science and Engineering A, vol. 684 (2017) pp.318-327.

Hydrogen-induced softening in nanocrystalline Ni investigated by nanoindentation

Y. Zhao, M.-Y. Seok, D.-H. Lee, J.-A Lee, J.-Y. Suh, and J.-i. Jang, Philosophical Magazine, vol. 96 (2016) pp. 3442-3450.

Decoupling the contributions of constituent layers to the strength and ductility of a multi-layered steel

M.-Y. Seok, J.-A Lee, D.-H. Lee, U. Ramamurty, S. Nambu, T. Koseki, and J.-i. Jang, Acta Materialia, vol. 121 (2016) pp.164-172.

Micro-mechanical behavior of an exceptionally strong metal matrix nanocomposite processed by high-pressure torsion

B. Ahn, H.-J. Lee, I.-C. Choi, M. Kawasaki, J.-i. Jang, and T.G. Langdon, Andvanced Engineering Materials, vol. 18 (2016) pp.1001-1008.

Spherical nanoindentation creep behavior of nanocrystalline and coarse-grained CoCrFeMnNi high-entropy alloys

D.-H. Lee, M.-Y. Seok, Y. Zhao, I.-C. Choi, J. He, Z. Lu, J.-Y. Suh, U. Ramamurty, M. Kawasaki, T. G. Langdon, and J.-i. Jang, Acta Materialia, vol. 109 (2016) pp.314-322.

Time-dependent nanoscale plasticity in nanocrystalline nickel rods and tubes

J.-A Lee, B.B. Seo, I.-C. Choi, M.-Y. Seok, Y. Zhao, Z. Jahed, U. Ramamurty, T.Y. Tsui, and J.-i. Jang, Scripta Materialia, vol. 112 (2016) pp.79-82.

On the contributions of different micromechanisms for enhancement in the strength of Ti-6Al-4V alloy upon B addition: A nanomechanical analysis

M.-Y. Seok, Y. Zhao, J.-A Lee, R.M. Mohamed, L.M. Al-Harbi, M.S. Al-Ghamdi, G. Singh, U. Ramamurty, and J.-i. Jang, Materials Science and Engineering A, vol. 649 (2016) pp.123-127.

Nanomechanical behavior and structural stability of a nanocrystalline CoCrFeNiMn high-entropy alloy processed by high-pressure torsion

D.-H. Lee, I.-C. Choi, M.-Y. Seok, J. He, Z. Lu, J.-Y. Suh, M. Kawasaki, T.G. Langdon, and J.-i. Jang, Journal of Materials Research, vol. 30 (2015) pp. 2804-2815.

The role of hydrogen in hardening/softening steel: Influence of the charging process

Y. Zhao, M.-Y. Seok, I.-C. Choi, Y.-H. Lee, S.-J. Park, U. Ramamurty, J.-Y. Suh, and J.-i. Jang, Scripta Materialia, vol. 107 (2015) pp. 46-49.

Microalloying effect on the activation energy of hot deformation

M.-Y. Seok, I.-C. Choi, Y. Zhao, D.-H. Lee, J.-A Lee, and J.-i. Jang, Steel Research International, vol. 86 (2015) pp. 817-820.

Strain-dependent transition of time-dependent deformation mechanism in single crystal ZnO evaluated by spherical nanoindentation

Y.-J. Kim, I.-C. Choi, J.-A Lee, M.-Y. Seok, and J.-i. Jang, Philosophical Magazine, vol. 95 (2015) pp. 1896-1906.

Time-dependent mechanical-electrical coupled behavior in single crystal ZnO nanorods

Y.-J. Kim, T.G. Yun, I.-C. Choi, S.W. Kim, W.I. Park, S.M. Han, and J.-i. Jang, Scientific Reports, vol. 5 (2015) Art. No. 9716.

Strain-dependent plasticity evolution of window glass

D.-H. Lee, I.-C. Choi, M.-Y. Seok, Y. Zhao, J.-A Lee, and J.-i. Jang, Journal of the American Ceramic Society, vol. 98 (2015) pp. 186-189.

Enhancement of strain-rate sensitivity and shear yield strength of a magnesium alloy processed by high-pressure torsion

I.-C. Choi, D.-H. Lee, B. Ahn, K. Durst, M. Kawasaki, T.G. Langdon, and J.-i. Jang, Scripta Materialia, vol. 94 (2015) pp. 44-47.

Hydrogen-induced hardening and softening of Ni-Nb-Zr amorphous alloys: Dependence on the Zr content

Y. Zhao, I.-C. Choi, M.-Y. Seok, U. Ramamurty, J.-Y. Suh, and J.-i. Jang, Scripta Materialia, vol. 93 (2014) pp. 56-59.

High-cycle fatigue behavior of Zn-22%Al processed by high-pressure torsion

I.-C. Choi, B.-G. Yoo, O. Kraft, R. Schwaiger, M.-Y. Seok, M. Kawasaki, T.G. Langdon, and J.-i. Jang, Materials Science and Engineering A, vol. 618 (2014) pp. 37-40.

Effect of hydrogen on the yielding behavior and shear transformation zone volume in metallic glass ribbons

Y. Zhao, I.-C. Choi, M.-Y. Seok, M.-H. Kim, D.-H. Kim, U. Ramamurty, J.-Y. Suh, and J.-i. Jang, Acta Materialia, vol. 78 (2014) pp. 213-221.

Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation

M.-Y. Seok, I.-C. Choi, J. Moon, S. Kim, U. Ramamurty, and J.-i. Jang, Scripta Materialia, vol. 87 (2014) pp. 49-52.

Predicting flow curves of two-phase steels from spherical nanoindentation data of constituent phases: Isostrain method vs. non-isostrain method

M.-Y. Seok, Y.-J. Kim, I.-C. Choi, Y. Zhao, and J.-i. Jang, International Journal of Plasticity, vol. 59 (2014) pp. 108-118.

Assessment of surface-local strains from remnant microindents on a Zr-based metallic glass

Y.-H. Lee, Y. Kim, Y.-C. Kim, J.-Y. Kim, and J.-i. Jang, Metals and Materials International, vol. 20 (2014) pp. 439-443.

Evolution of plasticity, strain-rate sensitivity and the underlying deformation mechanism in Zn-22%Al during high-pressure torsion

I.-C. Choi, Y.-J. Kim, B. Ahn, M. Kawasaki, T.G. Langdon, and J.-i. Jang, Scripta Materialia, vol. 75 (2014) pp. 102-105.

Stress-dependent hardening-to-softening transition of hydrogen effects in nanoindentation of a linepipe steel

D.-H. Lee, J.-A Lee, M.-Y. Seok, U.B. Baek, S.H. Nahm, and J.-i. Jang, International Journal of Hydrogen Energy, vol. 39 (2014) pp. 1897-1902.

Nanoindentation for probing the mechanical behavior of molecular crystals-a review of the technique and how to use it

U. Ramamurty and J.-i. Jang, CrystEngComm, vol. 16 (2014) pp. 12-23.
(invited "highlight" article; also selected as cover article)

On the nanomechanical characteristics of thermally-treated alloy 690: Grain boundaries versus grain interior

Y. Zhao, I.-C. Choi, Y.-J. Kim, and J.-i. Jang, Journal of Alloys and Compounds, vol. 582 (2014) pp. 141-145.

Nanoindentation behavior of nanotwinned Cu: Influences of indenter angle on hardness, strain rate sensitivity and activation volume

I.-C. Choi, Y.-J. Kim, Y.M. Wang, U. Ramamurty, and J.-i. Jang, Acta Materialia, vol. 61 (2013) pp. 7313-7323.

Time-dependent nanoscale plasticity of ZnO nanorods

Y.-J. Kim, W.W. Lee, I.-C. Choi, B.-G. Yoo, S.M. Han, H.-G. Park, W.I. Park, and J.-i. Jang, Acta Materialia, vol. 61 (2013) pp. 7180-7188.

Hydrogen-induced toughness drop in weld coarse-grained heat-affected zones of linepipe steel

J.-A Lee, D.-H. Lee, M.-Y. Seok, U.B. Baek, Y.-H. Lee, S.H. Nahm, and J.-i. Jang, Materials Characterization, vol. 82 (2013) pp. 17-22.

Tensile deformation behavior and phase transformation in the weld coarse-grained heat affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel

J. Moon, T.-H. Lee, S.-J. Park, J.-i. Jang, M.-H. Jang, H.-Y. Ha, and B. Hwang, Metallurgical and Materials Transactions A, vol. 44 (2013) pp. 3069-3076.

Room-temperature anelasticity and viscoplasticity of Cu-Zr bulk metallic glasses evaluated using nanoindentation

B.-G. Yoo, I.-C. Choi, Y.-J. Kim, U. Ramamurty, and J.-i. Jang, Materials Science and Engineering A, vol. 577 (2013) pp. 101-104.

Nanoscale room temperature creep of nanocrystalline nickel pillars at low stresses

I.-C. Choi, Y.-J. Kim, M.-Y. Seok, B.-G. Yoo, J.-Y. Kim, Y.M. Wang, and J.-i. Jang, International Journal of Plasticity, vol. 41 (2013) pp. 53-64

Indentation size effect and shear transformation zone size in a bulk metallic glass in two different structural states

I.-C. Choi, Y. Zhao, Y.-J. Kim, B.-G. Yoo, J.-Y. Suh, U. Ramamurty, and J.-i. Jang, Acta Materialia, vol. 60 (2012) pp. 6862-6868.

Increased time-dependent room temperature plasticity in metallic glass nanopillars and its size-dependency

B.-G. Yoo, J.-Y. Kim, Y.-J. Kim, I.-C. Choi, S. Shim, T.Y. Tsui, H. Bei, U. Ramamurty, and J.-i. Jang, International Journal of Plasticity, vol. 37 (2012) pp. 108-118.

Experimental analysis of the elastic-plastic transition during nanoindentation of single crystal alpha-silicon nitride

Variations in DBTT and CTOD within weld heat-affected zone of API X65 pipeline steel

J.-B. Ju, W.-S. Kim, and J.-i. Jang, Materials Science and Engineering A, vol. 546 (2012) pp. 258-262.

Estimation of the shear transformation zone size in a bulk metallic glass through statistical analysis of the first pop-in stresses during spherical nanoindentation

I.-C. Choi, Y. Zhao, B.-G. Yoo, Y.-J. Kim, J.-Y. Suh, U. Ramamurty, and J.-i. Jang, Scripta Materialia, vol. 66 (2012) pp. 923-926.

Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass

B.-G. Yoo, I.-C. Choi, Y.-J. Kim, J.-Y. Suh, U. Ramamurty, and J.-i. Jang, Materials Science and Engineering A, vol. 545 (2012) pp. 225-228.

Correlation of particle impact conditions with bonding, nanocrystal formation and mechanical properties in kinetic sprayed nickel

G. Bae, J.-i. Jang, and C. Lee, Acta Materialia, vol. 60 (2012) pp. 3524-3535.

Martensitic phase transformation and pop-in in compression of austenitic steel nanoplates observed in situ by transmission electron microscopy

Y.-J. Kim, B.-G. Yoo, I.-C. Choi, M.-Y. Seok, J.-Y. Kim, T. Ohmura, and J.-i. Jang, Materials Letters, vol. 75 (2012) pp. 107-110.

Orientation-dependent indentation modulus and yielding in a high Mn twinning-induced plasticity steel

S. Kang, Y.-S. Jung, B.-G. Yoo, J.-i. Jang, and Y.-K. Lee, Materials Science and Engineering A, vol. 532 (2012) pp. 500-504.

Indentation creep revisited

I.-C. Choi, B.-G. Yoo, Y.-J. Kim, and J.-i. Jang, Journal of Materials Research, vol. 27 (2012) pp. 3-11.
(Review article in focus issue on indentation)

Bluntness measurement of a Berkovich indenter

Y.-H. Lee , B.-G. Yoo, and J.-i. Jang, International Journal of Modern Physics B, vol. 25 (2011) pp. 4273-4276.
(presented at AMDP2011)

Estimating the stress exponent of nanocrystalline nickel: Sharp vs. spherical indentation

I.-C. Choi, B.-G. Yoo, Y.-J. Kim, M.-Y. Seok, Y.M. Wang, and J.-i. Jang, Scripta Materialia, vol. 65 (2011) pp. 300-303

Variations in overall- and phase-hardness of a new Ni-based superalloy during isothermal aging

J.-H. Oh, I.-C. Choi, Y.-J. Kim, B.-G. Yoo, and J.-i. Jang, Materials Science and Engineering A, vol. 528 (2011) pp. 6121-6127

Influence of thermo-mechanical treatment on the precipitation strengthening behavior of Inconel 740, a Ni-based superalloy

J.-H. Oh, B.-G. Yoo, I.-C. Choi, M.L. Santella, and J.-i. Jang, Journal of Materials Research, vol. 26 (2011) pp. 1253-1259

Indentation size effect in bulk metallic glass

Exploring nanomechanical behavior of silicon nanowires: AFM bending versus nanoindentation

Room temperature creep in amorphous alloys: Influence of initial strain and free volume

Nanoindentation analysis of time-dependent deformation in as-cast and annealed Cu-Zr bulk metallic glass

Effect of hydrogen on subsurface deformation during indentation of a bulk metallic glass

Effects of impurities on the biodegradation behavior of pure magnesium

On the hardness of shear bands in amorphous alloys

Lateral assembly of millimetre-long silicon nanowires for multiple device integration

Instrumented indentation of a Pd-based bulk metallic glass: Constant loading rate test vs. constant strain rate test

Reappraisal of the work hardening behavior of bulk amorphous matrix composites

A nanoindentation study on the micromechanical characteristics of API X100 pipeline steel

Estimation of residual stress by instrumented indentation: A review

Plasticity improvement of amorphous alloy via skim cold rolling

Time-dependent plasticity of Li2O-SnO2-B2O3-P2O5 ceramic glasses

Role of free volume in strain softening of as-cast and annealed bulk metallic glass

Predicting macroscopic plastic flow of high-performance, dual-phase steel through spherical nanoindentation on each microphase

Influence of indenter angle on cracking in Si and Ge during nanoindentation

Extraction of flow properties of single crystal silicon carbide by nanoindentation and finite element simulation

Orowan strengthening effect on the nanoindentaion hardness of ferrite matrix in microalloyed steels

Investigations on indentation size effects using a pile-up corrected hardness

A study on the evolution of subsurface deformation in a Zr-based bulk metallic glass during spherical indentation

Irreversible structural change of an amorphous alloy induced by elastostatic stress and its influence on the mechanical properties

Fracture toughness anisotropy in a API steel line-pipe

Rate-dependent inhomogeneous-to-homogeneous transition of plastic flows during nanoindentation of bulk metallic glasses: fact or artifact?

J.-Y. Kim, J.-J. Lee, Y.-H. Lee, J.-i. Jang, and D. Kwon, Solid State Phenomena, vol. 124-126 (2007) pp. 1337-1340
(presneted at IUMRS-ICA 2006, Jeju, Korea)

A nanoindentation study on grain-boundary contributions to strengthening and aging degradation mechanisms in advanced 12 Cr ferritic steel

Mechanical properties of porous and fully dense low-k dielectric thin films measured by means of nanoindentation and the plane-strain bulge test technique

S. Wen, J.-i. Jang, M.J. Lance, J. Bentley, and G.M. Pharr, Microscopy and Microanalysis, Vol. 11 (Suppl 2) (2005) pp. 792-793
(presneted at M&M 2005, Honolulu, Hawaii)
[honored with Distinguished Scholar Award from MAS (the Microbeam Analysis Society)]

J.-i. Jang, M. J. Lance, S. Wen, and G.M. Pharr, Applied Physics Letters, Vol. 86 (2005) Art. No. 131907
(also selected for publication in the Virtual Journal of Nanoscale Science and Technology, Vol. 11, Issue 13, April 4, 2005)

S. Wen, J. Bentley, J.-i. Jang, I.M. Anderson, and G.M. Pharr, Microscopy and Microanalysis, Vol. 10 (Suppl 2) (2004), pp. 56-57
(presneted at M&M 2004, Savannah, GA)
[honored with Presidential Award from MSA (Microscopy Society of America)]

J.-S. Lee, J.-B. Ju, J.-i. Jang, W.-S. Kim, and D. Kwon, Materials Science and Engineering A, Vol. 373 (2004) pp.122-130

Y.-H. Lee, J.-i. Jang, and D. Kwon, Materials Science Forum, Vols.449-452 (2004) pp.93-96
(presented at ISAEM-2003, Jeju, Korea)

Y.-H. Lee, D. Kwon, J.-i. Jang, and W.-S. Kim, Key Engineering Materials, Vols. 270-273 (2004) pp. 35-40
(presented at APCNDT 2003, Jeju, Korea)

Y. Choi, J.-i. Jang, K.-H. Kim, D. Kwon, and S.-K. Park, Key Engineering Materials, Vols. 270-273 (2004) pp. 1694-1699
(presented at APCNDT 2003, Jeju, Korea)

J.-B. Ju, J.-S. Lee, J.-i. Jang, and D. Kwon, International Journal of Pressure Vessels and Piping, Vol. 80(2003) pp.641-646

Y.-H. Lee, D. Kwon, and J.-i. Jang, International Journal of Modern Physics B, Vol. 17 (2003) pp.1141-1146

J.-B. Ju, J.-i. Jang and D. Kwon, International Journal of Pressure Vessels and Piping, Vol. 80 (2003) pp.221-228

Y. Choi, J.-i. Jang, J. Park, D. Kwon, M. Gao, and R. Kania, Oil & Gas Journal, Vol. 101, No. 39 (2003) pp. 66-71

J.-i. Jang, B.-W. Lee, J.-B. Ju, D. Kwon, and W.-S. Kim, Engineering Fracture Mechanics, Vol. 70 (2003) pp. 1245-1257

J.-i. Jang, J.-S. Lee, J.-B. Ju, B.-W. Lee, D. Kwon, and W.-S. Kim, Materials Science and Engineering A, Vol. 351 (2003) pp. 183-189

J.-i. Jang, Y. Choi, Y.-H. Lee, D. Kwon, D.-J. Kim and J.-T. Kim, Journal of Materials Science Letters, Vol. 22 (2003) pp. 499-502

J.-i. Jang, D. Son, Y.-H. Lee, Y. Choi, and D. Kwon, Scripta Materialia, Vol. 48 (2003) pp. 743-748

J.-i. Jang, J.B. Ju, B.-W. Lee, D. Kwon, and W.-s. Kim, Materials Science and Engineering A, Vol. 340 (2003) pp. 68-79

J.-i. Jang, B.-W. Lee, J.-B. Ju, D. Kwon, and W.-S. Kim, Metallurgical and Materials Transactions A, Vol. 33A (2002) pp. 2615-2622

B.-W. Lee, J.-i. Jang, and D. Kwon, Materials Science and Engineering A, Vol. 334 (2002) pp. 207-214

J.-i. Jang, J.-B. Ju, B.-W. Lee, D. Kwon, and W.-S. Kim, Journal of Materials Science Letters, Vol. 20, No. 23 (2001) pp. 2149-2152

J.-i. Jang, Y.-c. Yang, W.-s. Kim and D. Kwon, Advances in Cryogenic Engineering-Materials, Vol. 44 (1998) pp.41-48

J.-i. Jang, Y.-c. Yang, W.-s. Kim and D. Kwon, Metals and Materials, Vol. 3 (1997) pp.230-238