Cyclic stress-strain response and dislocation configuration of a beta phase containing TiAl alloy during isothermal fatigue tests under different strain rate

摘要：

　　A beta phase containing titanium aluminum compound was prepared.Isothermal Fatigue(IF) were subjected at 650 ℃ at three strain rates,such as 6.67×10-3 s-1,6.67×104 S-1,6.67×10-5 s-1 to determine the effect of strain rate on cyclic stress-strain response (CSSR) of TiAl alloy during IF tests.The curves of cyclic stress-strain response were discussed and dislocations configuration were also observed by TEM.The results show that strain rates have an apparent effect on CSSR of TiAl alloy during IF tests and CSSR was identified that it had a close relationship with dislocation configuration and deformation twin.

关键词： Titanium aluminum compound isothermal fatigue strain rate cyclic stress-strain response dislocation configuration

作者: Hongfu Xiang Jinghai Tao Jiheng Wang Hui Li Anlun Dai

作者单位: Provincial Key Lab of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhe Electric Power Line Accessories Quality Inspection, Center of Electric Industry, Nanjing 210037,Chin

会议类型: 国际会议

会议名称: 2nd International Conference on Advanced Materials and Engineering Materials(第二届先进材料与工程材料国际会议)(ICAMEM2012)

会议地点: 北京

会议语种:英文

页码: 314-317

在线出版日期: 2012-12-16（万方平台首次上网日期，不代表论文的发表时间）