第一代单晶高温合金中温高应力幅下的疲劳裂纹萌生行为

黄亚奇, 王栋, 卢玉章, 熊英, 申健

Fatigue Crack Initiation Behavior at Intermediate Temperature under High Stress Amplitude for Single Crystal Superalloy DD413

HUANG Yaqi, WANG Dong, LU Yuzhang, XIONG Ying, SHEN Jian

图4 疲劳样品表面碳化物的纵截面形貌和EDS线扫结果

Fig.4 Longitude section morphologies of the cracked carbides on the surface at 1500 cycles (~0.1 Nf) (a) and after failure (c), EDS linear scanning results (b, d, e) of the cracked carbide as marked by the arrows in Fig.4a and Fig.4c