High Temperature Fatigue Properties Research of GH4169 under Multiaxial Cyclic Loading

摘要：

　　The high temperature(550℃ and 650℃)fatigue properties of GH4169 for thin-wall tube specimen are investigated under uniaxial tension,uniaxial torsion,proportional tension-torsion and nonproportional tension-torsion.All tests are strain-controlled.The results indicate that the shape of the hysteresis loops of uniaxial tension,uniaxial torsion and proportional tension-torsion are similar,but hysteresis loop of non-proportional tension-torsion has distortion; the cyclic softening behavior is shown for GH4169 under uniaxial tension,uniaxial torsion and proportional tension-torsion,but the cyclic hardening behavior is shown for the first several cycles of nonproportional tension-torsion.

作者: Shaojun Ma Dihua Tong Liyun Li Yangyang Cheng Benrun Hu Bo Chen

作者单位: AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China China University of Mining & Technology,Beijing 100086,China

会议类型: 国际会议

会议名称: The 1st International Symposium on Application of Materials Science and Energy Materials (SAMSE 2017)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2017-12-28（万方平台首次上网日期，不代表论文的发表时间）