W含量对Ti-42Al-5Mn-xW合金相转变行为的影响

李小兵, 潜坤, 舒磊, 张孟殊, 张金虎, 陈波, 刘奎

Effect of W Content on the Phase Transformation Behavior in Ti-42Al-5Mn- xW Alloy

LI Xiaobing, QIAN Kun, SHU Lei, ZHANG Mengshu, ZHANG Jinhu, CHEN Bo, LIU Kui

表2 Ti-42Al-5Mn-xW合金1200℃处理1 h后不同冷却方式下的显微组织定量统计结果 (volume fraction / %)

Table 2 Quantitative statistical results of microstructures for Ti-42Al-5Mn-xW alloys treated at 1200oC for 1 h and then cooled with different methods

x WC AC FC α2/γ region γg βo α2/γ region γg βo α2/γ region γg βo 0 87.4 ± 0.2 3.8 ± 0.1 8.9 ± 0.2 74.5 ± 0.9 14.6 ± 0.9 10.9 ± 0.8 69.2 ± 0.4 24.8 ± 0.5 6.1 ± 0.6 0.5 63.3 ± 0.7 13.9 ± 0.5 22.8 ± 0.9 54.3 ± 1.1 19.2 ± 0.4 26.5 ± 1.7 23.9 ± 0.3 59.8 ± 0.5 16.3 ± 0.6 0.8 54.8 ± 0.8 15.5 ± 0.8 29.7 ± 0.7 41.5 ± 1.1 24.6 ± 1.1 33.9 ± 1.1 15.9 ± 0.4 62.6 ± 0.5 21.5 ± 0.9 1.0 58.4 ± 0.6 9.5 ± 0.7 32.1 ± 0.4 56.9 ± 1.1 13.1 ± 0.6 30.0 ± 0.9 18.1 ± 0.5 60.2 ± 0.9 21.7 ± 1.3