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7 样品次表面碳化物纵截面的形貌

Fig.7 Longitude section morphologies of the carbides at subsurface of the specimen (a) cracked carbide on the propagation path of micro-crack, (b) no cracked carbides located around micro-crack