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In-Chul Choi
Researcher at Hanyang University
Publications - 41
Citations - 1686
In-Chul Choi is an academic researcher from Hanyang University. The author has contributed to research in topics: Nanoindentation & Creep. The author has an hindex of 23, co-authored 38 publications receiving 1355 citations. Previous affiliations of In-Chul Choi include Karlsruhe Institute of Technology & Kumoh National Institute of Technology.
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Spherical nanoindentation creep behavior of nanocrystalline and coarse-grained CoCrFeMnNi high-entropy alloys
Dong Hyun Lee,Moo-Young Seok,Yakai Zhao,In-Chul Choi,Junyang He,Zhaoping Lu,Jin-Yoo Suh,Upadrasta Ramamurty,Upadrasta Ramamurty,Megumi Kawasaki,Terence G. Langdon,Terence G. Langdon,Jae-il Jang +12 more
TL;DR: In this paper, the deformation behavior of CoCrFeMnNi high-entropy alloys (HEAs) was systematically explored through a series of spherical nanoindentation creep experiments.
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Indentation size effect and shear transformation zone size in a bulk metallic glass in two different structural states
In-Chul Choi,Yakai Zhao,Yong-Jae Kim,Byung Gil Yoo,Jin-Yoo Suh,Upadrasta Ramamurty,Jae-il Jang +6 more
TL;DR: The existence of an indentation size effect (ISE) in the onset of yield in a Zr-based bulk metallic glass (BMG) was investigated by employing spherical-tip nanoindentation experiments.
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Nanomechanical behavior and structural stability of a nanocrystalline CoCrFeNiMn high-entropy alloy processed by high-pressure torsion
Dong Hyun Lee,In-Chul Choi,Moo-Young Seok,Junyang He,Zhaoping Lu,Jin-Yoo Suh,Megumi Kawasaki,Terence G. Langdon,Terence G. Langdon,Jae-il Jang +9 more
TL;DR: A CoCrFeNiMn high-entropy alloy (HEA) was processed by high-pressure torsion (HPT) to produce a nanocrystalline (nc) HEA as discussed by the authors.
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Estimation of the shear transformation zone size in a bulk metallic glass through statistical analysis of the first pop-in stresses during spherical nanoindentation
In-Chul Choi,Yakai Zhao,Byung-Gil Yoo,Yong-Jae Kim,Jin-Yoo Suh,Upadrasta Ramamurty,Jae-il Jang +6 more
TL;DR: The size of the shear transformation zone (STZ) that initiates the elastic to plastic transition in a Zr-based bulk metallic glass was estimated by conducting a statistical analysis of the first pop-in event during spherical nanoindentation as discussed by the authors.
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Increased time-dependent room temperature plasticity in metallic glass nanopillars and its size-dependency
Byung-Gil Yoo,Ju-Young Kim,Yong-Jae Kim,In-Chul Choi,Sanghoon Shim,Ting Y. Tsui,Hongbin Bei,Upadrasta Ramamurty,Jae-il Jang +8 more
TL;DR: In this paper, the authors investigated the influence of sample size on the time-dependent plastic deformation behavior in amorphous alloys and found that at a given stress, higher total strains accrue in the smaller specimens.