Crystal Plasticity Analysis of Mechanical Response in Two Phase Alloys with Dispersion of Fine Particles

Macroscopic mechanical responses of alloy steels dispersed with fine vanadium carbide particles [1] were analyzed by crystal plasticity finite element method. Average distance of dispersed particles was used as a microscopic length scale and introduced to the models of the critical resolved shear st...

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Bibliographic Details
Published inKey Engineering Materials Vol. 725; pp. 267 - 272
Main Authors Ohashi, Tetsuya, Okuyama, Yelm
Format Journal Article
LanguageEnglish
Published Trans Tech Publications Ltd 15.12.2016
Subjects
Crystals
Dislocations
Mathematical analysis
Mathematical models
Mean free path
Plasticity
Shear stress
Work hardening
Dispersion Hardening
Crystal Plasticity Analysis
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Summary:Macroscopic mechanical responses of alloy steels dispersed with fine vanadium carbide particles [1] were analyzed by crystal plasticity finite element method. Average distance of dispersed particles was used as a microscopic length scale and introduced to the models of the critical resolved shear stress and the mean free path of dislocations. Numerical result of yield stress agreed well with that of experimental result [1], but that of the work hardening rate was slightly higher than that of experimental one. When the dislocation mean free path was set to be 2 to 3 times the average spacing of dispersed particles, the work hardening rate fit better with the experimental one.
Bibliography:Selected, peer reviewed papers from the 13th Asia-Pacific Symposium on Engineering Plasticity and its Applications (AEPA2016), December 4-8, 2016, Hiroshima, Japan
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISBN:9783035710243
3035710244
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.725.267