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室温下不锈钢的多轴时相关循环变形行为

史智 高庆 康国政 孙亚芳

史智, 高庆, 康国政, 孙亚芳. 室温下不锈钢的多轴时相关循环变形行为[J]. 西南交通大学学报, 2006, 19(3): 391-395.
引用本文: 史智, 高庆, 康国政, 孙亚芳. 室温下不锈钢的多轴时相关循环变形行为[J]. 西南交通大学学报, 2006, 19(3): 391-395.
SHI Zhi, GAO Qing, KANG Guozheng, SUN Yafang. Time-Dependent Cyclic Behavior of Stainless Steel under Multiaxial Loading at Room Temperature[J]. Journal of Southwest Jiaotong University, 2006, 19(3): 391-395.
Citation: SHI Zhi, GAO Qing, KANG Guozheng, SUN Yafang. Time-Dependent Cyclic Behavior of Stainless Steel under Multiaxial Loading at Room Temperature[J]. Journal of Southwest Jiaotong University, 2006, 19(3): 391-395.

室温下不锈钢的多轴时相关循环变形行为

基金项目: 

教育部博士点基金资助项目(20040613002)

详细信息
    作者简介:

    史智(1970- ),女,讲师,在职博士研究生,研究方向为材料本构关系,电话:028-87600790,E-mail:zshi@nec.swjtu.edu.cn

Time-Dependent Cyclic Behavior of Stainless Steel under Multiaxial Loading at Room Temperature

  • 摘要: 对1Cr18Ni9不锈钢在室温下的非比例多轴时相关循环应变特征和棘轮行为进行了试验研究,以考察应变率、应力率和加载路径对其循环变形行为的影响.结果表明,1Cr18Ni9不锈钢的循环应变行为和棘轮行为对应变率、应力率很敏感,具有时相关特点:在多轴应变循环下,其最大等效应力随应变率增大而增大;在棘轮试验中,其轴向棘轮应变则随着应力率减小而增大.此外,加载路径对1Cr18Ni9不锈钢的循环粘塑性变形行为也有较大影响:多轴应变循环下,在所采用的直线、菱形和圆形3种加载路径中,圆形路径引起的非比例附加硬化程度最高,其次是菱形路径.然而,试验发现,在多轴棘轮试验中,圆形路径产生的棘轮应变高于菱形路径.

     

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出版历程
  • 收稿日期:  2006-02-21
  • 刊出日期:  2006-06-25

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