航空用TC21钛合金变截面模锻件的显微组织和力学性能不均匀性分析

杨杰, 黄森森, 尹慧, 翟瑞志, 马英杰, 向伟, 罗恒军, 雷家峰, 杨锐

Inhomogeneity Analyses of Microstructure and Mechanical Properties of TC21 Titanium Alloy Variable Cross-section Die Forgings for Aviation

YANG Jie, HUANG Sensen, YIN Hui, ZHAI Ruizhi, MA Yingjie, XIANG Wei, LUO Hengjun, LEI Jiafeng, YANG Rui

表3 图1a中Ⅱ和Ⅴ处沿不同方向的拉伸和冲击性能

Table 3 Tensile and impact properties at positions Ⅱ and Ⅴ in Fig.1a along LD and ND

Position Direction Rp0.2 / MPa Rm / MPa A / % Z / % I / J Ⅱ LD 1063 ± 5 1198 ± 10 9.0 ± 1.5 14.0 ± 2.5 33.0 ± 2.0 ND 1043 ± 3 1185 ± 5 8.0 ± 2.0 10.0 ± 3.5 30.9 ± 2.1 Ⅴ LD 1014 ± 2 1137 ± 3 11.3 ± 1.7 16.0 ± 2.4 40.0 ± 2.0 ND 1013 ± 3 1138 ± 4 6.5 ± 2.5 11.0 ± 3.0 36.0 ± 3.5