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Reappraisal of Grain Boundary Diffusion Creep Equation for Nanocrystalline Materials

Title
Reappraisal of Grain Boundary Diffusion Creep Equation for Nanocrystalline Materials
Author
신동혁
Keywords
nanocrystalline materials; grain boundary diffusion creep; grain size; threshold stress
Issue Date
2006-04
Publisher
대한금속재료학회
Citation
METALS AND MATERIALS INTERNATIONAL, v. 12, No. 2, Page. 107-113
Abstract
Grain boundary diffusion creep equations developed previously for nanocrystalline materials were reappraised in order to elicit further understanding of plastic deformation of these materials in relation to grain boundary diffusion. From a mechanistic viewpoint, the strain rate is inversely proportional to the second power of the grain size when the grain size is refined to the same order of the grain boundary thickness. The presence of the threshold stress appears to be inherent, as a relatively large volume fraction of the grain boundary region is associated with irregularities.
URI
http://kiss.kstudy.com/thesis/thesis-view.asp?key=2524554https://repository.hanyang.ac.kr/handle/20.500.11754/107848
ISSN
1598-9623; 2005-4149
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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