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1 热变形工艺路线示意图、R61棒材的显微组织以及热处理工艺示意图

Fig.1 Schematic illustration of the thermomechanical processing route (a), initial microstructure of the R61 bar (b) and schematic diagram of the heat treatment process (c)