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3 疲劳断裂后样品的表面形貌和断口形貌

Fig.3 Surface morphology and fracture surfaces of fatigue specimens after failure (a, c) S3; (b, d) S5