摘要
本文通过宏微观结合,研究了奥氏体不锈铜常温及低温下低循环变形行为,着重讨论了应变幅值、试验温度、奥氏体稳定性对低周疲劳寿命、循环硬化/软化的影响;分析宏微观试验结果,提出了材料循环变形过程中硬化与软化同时存在的观点。
The paper macroscopically and microscopically investigates the
low cyclic deformation behavior of austenitic stainless steel
at room and low temperatures.The effects of strain amplitude,
test temperature,stability of austenite on low cycle fatigue life
and cyclic hardening softening are studied with emphasis.
Analysing the macroscopic and microscopic experimental results,
the paper puts forward a viewpoint that the cyclic hardening
and the cyclic softening exist simultaneously.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1991年第3期109-116,共8页
Journal of Southwest Jiaotong University
基金
国家自然科学基金
关键词
不锈钢
奥氏体
低周疲劳
变形
寿命
austenitic stainless steel
low cyclic fatigue
cyclic hardening/softening
fatigue life
