Experimental Study on Mechanics Property of Austenitic Stainless Steel at Room and Ultra-low Temperature
a kind of strain hardening austenitic stainless steel widely used in cryogenic pressure vessels was adopted.A series of systematic experiments were performed and the results were presented concerning the monotonic tension and fatigue mechanics properties of stainless steel at room and liquid nitrogen temperature (-196℃).The fatigue life of low cycle,and high cycle,and the monotonic stress-strain curve were tested and discussed.The results were compared and found obviously different at room temperature and ultra-low temperature.The strength and fatigue life of the stainless steel were improved,while the ductility and plasticity decreased visibly at ultra-low temperature.The curve of the maximum stress Smax vs.the cycle number to failure Nf at -196℃ was obtained and contributed to safety design of the cryogenic vessels.
austenitic stainless steel strain hardness fatigue life ultra-low temperature cryogenic vesselt
FengPeng Yang Zhuoying Lin
Department of Engineering Mechanics,Shanghai Jiaotong University,Shanghai,200240,China
国际会议
西安
英文
1-9
2012-10-01（万方平台首次上网日期，不代表论文的发表时间）