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Shin, Hyung-Joon
Nanoscale Materials Science Lab (NMSL)
Research Interests
  • Scanning tunneling microscopy, surface science, interface science, nanomaterials

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Plastic strain ratios of Fe and Ni electrodeposits

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Title
Plastic strain ratios of Fe and Ni electrodeposits
Author
Shin, Hyung-JoonLee, DN
Keywords
crystal plasticity;  electrodeposits;  FEM;  iron;  nickel;  plastic anisotropy;  R-value;  texture
Issue Date
2002
Publisher
Trans Tech Publications
Citation
MATERIALS SCIENCE FORUM, v.408-4, no., pp.1115 - 1120
Abstract
It is important to understand the influence of texture on the anisotropic properties of materials. The crystal plasticity finite element method is one of the most powerful simulation tools, which can take both the orientation and microstructure of materials into account. Recently, it has been reported that the plastic strain ratios or the R-values of iron electrodeposits having ND//<111> fiber or <111> texture are much higher than those of thermomechanically treated steel sheets. This difference in R-values may result from the difference in microstructures. No microstructural effects on the R-value have been reported so far. In this study, the influence of textures and microstructures on the R-values of iron and nickel electrodeposits has been investigated. The experimental and calculated results show that the specimens having columnar structures give rise to higher R-values compared with those having equiaxed structures, even for the same textures. It is due to mutual plastic constraints of neighboring grains, which depend on the microstructure and texture of materials.
URI
https://scholarworks.unist.ac.kr/handle/201301/7765
DOI
10.4028/www.scientific.net/MSF.408-412.1115
ISSN
0255-5476
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