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1 疲劳实验前合金的显微组织

Fig.1 Microstructure of the alloy before fatigue test (a) dendritic microstructure and (b) morphology and EDS result of the carbide