Surface-Dependent Mechanical Behavior of Ultra-Thin 304L Stainless Steel

被引：0
作者：
Y. X. Liu
Z. Y. Liang
S. G. Xu
M. X. Huang
机构：
[1] The University of Hong Kong,Department of Mechanical Engineering
[2] Songshan Lake Materials Laboratory,Fuel Cell Electrochemical System Integration, Electric, Autonomous and Fuel Cell Vehicle Programs
[3] General Motors Pontiac Engineering Center,undefined
来源：
Metallurgical and Materials Transactions A | 2023年 / 54卷
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摘要：
Size effect occurs when sample dimension approaches the characteristic microstructure size. Such size effects on mechanical properties and microstructural evolution were investigated for an ultra-thin 304L stainless steel sheet with only less than 20 grains through thickness. It is found that the surface grains exhibit a weaker strain hardening than interior counterparts due to promoted annihilation of statistically stored dislocations. Finite element analysis demonstrates good agreement with experiments.
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页码：3703 / 3708
页数：5
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