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

图6 裂纹长度不同的三种成分合金试样的室温疲劳断口的微观形貌

Fig.6 Morphology of microscopic fracture of three alloys at room temperature (a-c) 6+6 mm, (d-f) 6+12 mm, (g-i) 6+24 mm,(a, d, g) 3Ta alloy, (b, e, h) 3.5Ta alloy, (c, f, i) 4Ta alloy