文献类型：期刊文献

英文题名：Effects of Cyclic and Monotonic Deformations on Nonlinear Ultrasonic Response of Austenitic Stainless Steel: A Comparative Study

作者：Zhang, Jianfeng[1];Xuan, Fu-Zhen[2];Xiang, Yanxun[2];Zhao, Peng[2]

机构：[1]AVIC Commercial Aircraft Engine Co Ltd, Res & Design Ctr, Dept Mat Sci & Mfg, Shanghai 201108, Peoples R China;[2]E China Univ Sci & Technol, Sch Mech & Power Engn, MOE Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China

年份：2016

卷号：25

期号：5

起止页码：2008

外文期刊名：JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

收录：;EI(收录号：20161702281253);WOS:【SCI-EXPANDED(收录号:WOS:000374577300037)】；

基金：The authors are grateful for the supports provided by the National Natural Science Foundation of China (51325504).

语种：英文

外文关键词：fatigue; nonlinear ultrasonic wave; plastic deformation; stainless steel

摘要：The effect of plastic deformations on the nonlinear ultrasonic response in austenite stainless steel was investigated under the tensile, asymmetric cyclic, and symmetric cyclic loadings. Nonlinear ultrasonic wave measurement was performed on the interrupted specimens. Results show that cyclic and monotonic plastic deformations lead to the significantly different acoustic nonlinear response. The increase of dislocation density and martensite transformation causes the increase of acoustic nonlinearity. By contrast, the well-developed cell structures decrease the acoustic nonlinear response. Under the asymmetric cyclic loading condition, the lightly decrease of acoustic nonlinearity is caused by the development of cell structures, while the slight increase of acoustic nonlinearity should be attributed to the increase of martensite transformation. Comparatively, the severe increase of acoustic nonlinearity during the first stage under symmetric cyclic loading is ascribed to the fast generation of dislocation structures and martensite transformation.