| 宋春雨，龚红英，邹琼琼，黄继龙，吕弘毅.新氢能源储蓄罐用奥氏体不锈钢速度敏感性研究[J].轻工机械,2017,35(2):70-72 |
| 新氢能源储蓄罐用奥氏体不锈钢速度敏感性研究 |
| Sensitivity of Strain Rate for 310S Austenitic Stainless Steel |
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| DOI：10.3969/j.issn.1005-2895.2017.02.015 |
| 中文关键词: 奥氏体不锈钢 应变速率 应变硬化 本构方程 |
| 英文关键词:austenitic stainless steel strain rate strain hardening constitutive equation |
| 基金项目:上海工程技术大学2015年研究生创新项目(15KY0509)。 |
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| 中文摘要: |
| 为了研究31OS奥氏体不锈钢的速度敏感性对材料成形性能的影响，通过不同应变速率下的单向拉伸试验获取
相对应的工程应力应变数据，将其转化为真实应力应变数据后，对真实应力应变数据进行计算，求得相应变形速率下的
各硬化参数。基于上述拟合结果，选取适当的本构方程模型，进行非线性拟合，得到一个受应变速率影响的本构方程。
通过笔者研究，确定31OS奥氏体不锈钢的硬化行为确实受应变速率影响，且本文所拟合的本构方程可对该材料的速度
敏感性作出准确判断。 |
| 英文摘要: |
| The purpose was to study the sensitivity influence of the strain rate on the formability for 31OS austenitic
stainless steel. Engineering stress-strain data were obtained by the uniaxial tension test with different strain rate, and
they were turned to the true stress-strain data, and the hardening parameters were gained from the true stress-strain
calculating. Based on the above fitted results, the appropriate constitutive equation was chosen. Through the non-linear
fitting, a constitutive equation which influences by the strain rate was established. The hardening behavior of 31OS
austenitic stainless steel was actually influenced by the strain rate . and the constitutive equation could judge the behavior
accurately. |
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