Ti55粉末合金的拉伸性能和薄壁筒体结构的成型

徐磊, 郭瑞鹏, 陈志勇, 贾清, 王清江

Mechanical Property of Powder Compact and Forming of Large Thin-Wall Cylindrical Structure of Ti55 Alloys

XU Lei, GUO Ruipeng, CHEN Zhiyong, JIA Qing, WANG Qingjiang

表3 不同热处理途径下Ti55粉末合金的拉伸性能

Table 3 Tensile properties of PM Ti55 alloy from different heat treatment routes

State t / oC UTS / MPa YS / MPa El. / % R.A. / % As-HIPed 20 974 921 16.0 28.4 600 586 465 15.8 22.9 960oC/1.5 h/AC+600oC/4 h/AC 20 994 902 14.8 39.0 600 655 510 20.8 34.5 990oC/1.5 h/AC+600oC/4 h/AC 20 1005 902 14.3 30.3 600 650 509 22.5 37.2