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4 Ti-42Al-5Mn-0.5W经800℃处理720 h后原βo微区不同相EDS化学成分分析结果 (atomic fraction / %)

Table 4 Chemical compositions of the different phases in the original βo region for the Ti-42Al-5Mn-0.5W after aging at 800oC for 720 h used by EPMA-EDS

Phase Ti Al Mn W γ 52.30 ± 0.62 44.43 ± 1.31 3.02 ± 0.18 0.31 ± 0.37 βo 55.36 ± 0.13 32.03 ± 0.54 10.64 ± 0.30 2.16 ± 0.15 α2 60.23 ± 0.34 33.82 ± 0.42 5.13 ± 1.23 0.89 ± 0.71 Laves 40.91 ± 1.26 30.00 ± 0.51 28.52 ± 1.83 0.51 ± 0.18