A Very High-Cycle Fatigue Test and Fatigue Properties of TC17 Titanium Alloy

作者：Jiao, Shengbo^*; Gao, Chao; Cheng, Li; Li, Xiaowei; Feng, Yu

来源：Journal of Materials Engineering and Performance, 2016, 25(3): 1085-1093.

DOI：10.1007/s11665-016-1930-x

• crack initiation
• distribution test
• fatigue limit
• TC17 titanium alloy
• very high-cycle fatigue

The present work studied the very high-cycle fatigue (VHCF) test and fatigue properties of TC17 titanium alloy. The specimens for bending vibration were designed using the finite element method and the VHCF tests were conducted by using the ultrasonic fatigue testing system. The results indicated that there is no the fatigue limit for TC17 titanium alloy, and the S-N curve shows a continuously descending trend. The fatigue crack initiates at the specimen surface within the range of VHCF and the VHCF lives follow the log-normal distribution more closely.

• 出版日期2016-3
• 单位西安电子科技大学; 中国人民解放军空军工程大学