镍基高温合金GH4169的热机械疲劳行为

钱春华, 崔海涛, 温卫东

Investigation on Thermo-mechanical Fatigue Behavior of GH4169 Alloy

QIAN Chunhua, CUI Haitao, WEN Weidong

图8 GH4169的断口形貌(反相位、应变幅±0.6%、400~650℃)

Fig.8 Fracture morphologies of GH4169 (OP, strain amplitude ±0.6%, 400~650℃) (a) fatigue source; (b) propagation zone; (c) final rupture regions