Ta含量对DZ411合金疲劳裂纹扩展的影响

吴望月, 刘心刚, 姜祥伟, 董加胜

Effect of Ta Content on Fatigue Crack Extension Behavior of DZ411 Alloy

WU Wangyue, LIU Xingang, JIANG Xiangwei, DONG Jiasheng

表1 不同Ta含量DZ411合金板的化学成分

Table 1 Chemical composition of DZ411 alloy plate with different Ta content (mass fraction, %)

Alloy Al Co Cr Mo Ta Ti W B C Ni 3Ta 3.24 9.53 13.85 1.50 3.0 4.90 3.79 0.01 0.10 Bal. 3.5Ta 3.20 9.54 13.87 1.49 3.5 4.87 3.80 0.01 0.10 Bal. 4Ta 3.19 9.52 13.86 1.49 4.0 4.86 3.79 0.01 0.10 Bal.