热等静压温度和粉末粒度对Ti2AlNb合金组织与性能的影响

刘巧沐,吴杰,陈玉龙,陈乾明,裴会平,徐磊

Effect of Temperature and Powder Particle Size on Mechanical Properties and Microstructure of PM Ti2AlNb Alloy Prepared via Hot Isostatic Pressing

Qiaomu LIU,Jie WU,Yulong CHEN,Qianming CHEN,Huiping PEI,Lei XU

表1 Ti2AlNb预合金粉末的化学成分 (质量分数，%)

Table 1 Chemical composition of Ti2AlNb pre-alloyed powders (mass fraction, %)

Batch number Al Nb Mo O N H Ar Ti I 10.4 38.6 0.90 0.065 0.008 0.0025 < 0.0005 Bal. II 10.5 40.6 0.90 0.066 0.005 0.0024 < 0.0005 Bal. III 10.2 40.7 0.90 0.065 0.007 0.0015 < 0.0005 Bal. IV 10.5 40.9 0.90 0.086 0.012 0.0045 < 0.0005 Bal. V 10.5 40.6 0.91 0.089 0.010 0.0050 < 0.0005 Bal.