Y
Yun-Hee Lee
Researcher at Korea Research Institute of Standards and Science
Publications - 103
Citations - 1580
Yun-Hee Lee is an academic researcher from Korea Research Institute of Standards and Science. The author has contributed to research in topics: Indentation & Nanoindentation. The author has an hindex of 20, co-authored 103 publications receiving 1383 citations. Previous affiliations of Yun-Hee Lee include Tokyo Institute of Technology & Seoul National University.
Papers
More filters
Journal ArticleDOI
Estimation of biaxial surface stress by instrumented indentation with sharp indenters
Yun-Hee Lee,Dongil Kwon +1 more
TL;DR: In this paper, the influence of non-equi-biaxial surface stress on the shape of indentation load versus depth curve was studied experimentally by instrumented sharp indentation tests on artificially strained samples of API X65 steel.
Journal ArticleDOI
Measurement of residual-stress effect by nanoindentation on elastically strained (100) W
Yun-Hee Lee,Dongil Kwon +1 more
TL;DR: In this article, the effects of elastic in-plane stress on surface-normal contact deformation were investigated by nanoindentation experiments on artificially strained (1.0) tungsten single crystal.
Journal ArticleDOI
Influence of surface-roughness on indentation size effect
TL;DR: In this paper, a rough surface indentation size effect (ISE) model was developed to estimate the work expended to flatten the rough surface and to deform the flattened surface, and the applicability of the model is discussed in terms of a critical contact depth for the surface roughness effect on ISE.
Journal ArticleDOI
The role of hydrogen in hardening/softening steel: Influence of the charging process
Yakai Zhao,Moo-Young Seok,In-Chul Choi,Yun-Hee Lee,Seong-Jun Park,Upadrasta Ramamurty,Upadrasta Ramamurty,Jin-Yoo Suh,Jae-il Jang +8 more
TL;DR: In this paper, thermal desorption spectroscopy and nanoindentation techniques were employed to elucidate the key differences in the hydrogen (H) charging methods and their consequences on the mechanical response of a low carbon steel.
Journal ArticleDOI
Assessing welding residual stress in A335 P12 steel welds before and after stress-relaxation annealing through instrumented indentation technique
TL;DR: In this article, an instrumented indentation technique was applied to evaluate the welding residual stress in A335 P12 steel welds in electric power-plant facilities before and after stress-relaxation annealing.