V添加对Ti2AlNb合金组织演变及硬度的影响
刘子儒, 郭乾应, 张虹雨, 刘永长

Effects of V on the Microstructure Evolution and Hardness Enhancement of Ti2AlNb Alloy
LIU Ziru, GUO Qianying, ZHANG Hongyu, LIU Yongchang
表2 1300 ℃固溶处理和不同温度时效后Ti-22Al-25Nb和Ti-22Al-25Nb-1V合金中B2、O和α2相的体积分数 (%)
Table 2 Volume fractions of B2, O, and α2 phases of the Ti-22Al-25Nb and Ti-22Al-25Nb-1V alloys after solution treatment at 1300 oC and aging at different temperatures
Temperature / oCAlloyB2 phaseO phaseα2 phase
800Ti-22Al-25Nb18.3381.67-
Ti-22Al-25Nb-1V21.3373.684.99
850Ti-22Al-25Nb27.9372.07-
Ti-22Al-25Nb-1V38.8051.229.98
900Ti-22Al-25Nb42.0357.97-
Ti-22Al-25Nb-1V49.6231.0819.30
950Ti-22Al-25Nb71.8114.7113.48
Ti-22Al-25Nb-1V74.48-25.52
1000Ti-22Al-25Nb81.53-18.47
Ti-22Al-25Nb-1V85.03-14.97
1050Ti-22Al-25Nb84.04-15.96
Ti-22Al-25Nb-1V80.91-19.09