钛合金的超高周疲劳滑移-解理竞争失效机制

杨溥, 邓海龙, 康贺铭, 刘杰, 孔建行, 孙宇凡, 于欢, 陈雨

Evaluation of Slip-cleavage Competition Failure Mechanisms for Titanium Alloys Induced by Microstructure in Very-high-cycle Fatigue Regime

YANG Pu, DENG Hailong, KANG Heming, LIU Jie, KONG Jianhang, SUN Yufan, YU Huan, CHEN Yu

图4 TC4钛合金的典型失效断口

Fig.4 Typical failure fractures of TC4 titanium alloy (a) macroscopic fracture observation; (b) short crack propagation region; (c) surface defects; (c1) slip characteristic; (d) macroscopic fracture observation; (e) short crack propagation region; (f) surface defects; (f1) facets; (g) macroscopic fracture observation; (h) ICIA; (i) ICIA; (i1) facets