热加工对紧固件用Ti55531棒材断裂韧性的影响

宋肖桐, 陈思旭, 邱建科, 胡明, 张明杰, 昝晓东, 雷家峰

Effect of Thermomechanical Processing on Fracture Toughness of Ti55531 Alloy Bar for Fasteners

SONG Xiaotong, CHEN Sixu, QIU Jianke, HU Ming, ZHANG Mingjie, ZAN Xiaodong, LEI Jiafeng

图9 不同加工状态Ti55531棒材的显微组织影响裂纹扩展路径的SEM形貌图和相应的示意图

Fig.9 SEM micrographs and corresponding schematic diagrams illustrating the effect of microstructure on crack propagation paths in Ti55531 bars under different processing conditions (a, d) R61, (b, e) R12, (c, f) D12