摘要
在室温下对304不锈钢进行了多种长短轴比的椭圆形、菱形等非比例循环加载路径下的应力与应变路径形状、路径的应力与应变幅值、平均应变及其加载历史的影响的系统实验.结果表明,材料的循环塑性行为强烈地依赖于应力与应变路径形状、路径的应力与应变幅值及其加载历史.
Under several nonproportional cyclic elliptic and rhombic paths with different ratios between the lengths of long axes and the short axes, the effects of the path shapes of the cyclic strain and cyclic stress, the equivalent stress and strain amplitudes for the paths, the mean strain and their loading history on the nonproportional cyclic deformation behavior were experimentally investigated for SS304 stainless steel at room temperature. The experimental study shows that the cyclic plastic behavior of SS304 stainless steel depends strongly on the path shapes of the cyclic strain and cyclic stress, the equivalent stress and strain amplitudes for the paths and their loading history.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第9期935-942,共8页
Acta Metallurgica Sinica
基金
国家自然科学基金10372086
教育部留学回国人员科研启动基金资助项目
关键词
304不锈钢
非比例加载
棘轮行为
循环塑性
SS304 stainless steel
nonproportional loading
ratcheting
cyclic plasticity