Dynamic strain aging in 321 stainless steel during low cycle fatigue test

被引：0

作者：

She, Meng ^{[1
]}

Zhang, Huaizheng ^{[2
]}

He, Guoqiu ^{[1
]}

Zhang, Fan ^{[2
]}

机构：

[1] Shanghai Key Laboratory of Metal Functional Materials, Tongji University, Shanghai,201804, China

[2] Gas Turbine Design Engineering Center, Siemens China Research Institute, Shanghai,201804, China

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2014年 / 42卷 / 09期

关键词：

Steel testing - Austenitic stainless steel - Fatigue testing;

D O I：

10.3969/j.issn.0253-374x.2014.09.014

中图分类号：

学科分类号：

摘要：

This work studied the DSA behavior during high temperature LCF testing of 321 stainless steel. Through analyzing the hysteresis loops and peak stress curves at different temperatures, the results showed that most of serrated yielding behavior appeared at the first 10 cycles of LCF and then weakened. In addition, strain amplitude also had an effect on serrated yielding amplitude. The lower the strain amplitude was, the lower the serrated yielding amplitude became, and the faster the serrated yielding behavior vanished.

引用

页码：1391 / 1394

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