摘要
研究了亚稳奥氏体不锈钢应变率对应力平台长度的影响。结果表明 ,应变率增加 ,应力平台长度εL 增加 ,平台长度占总应变的比例 β也随之增加 ,并在高应变率时演化为平台长度近 2 0 % ,平台长度占总应变比例约 40 %的超长应力平台。
The effects of strain rate on stress plateau length have been investigated in metastable austenitic stainless steel.The experimental results show that the stress plateau length and its proportion to the total strain increase with the increasing strain rate;then at high strain rate,it evolves into a super long stress plateau with length approaching 20%, and 40% proportion to the total strain.The super long stress plateau is related to the decrease of the transformation rate of strain-induced martensite at high strain rate.
出处
《兵器材料科学与工程》
CAS
CSCD
2001年第6期3-5,12,共4页
Ordnance Material Science and Engineering
基金
国家自然科学基金资助项目 ( 5 97710 48
5 98310 30 )
国家重点基础研究专项经费资助 (G19990 6 5 0 )
