<strong>GH4169</strong>合金拘束相关的疲劳裂纹萌生寿命

GH4169合金拘束相关的疲劳裂纹萌生寿命

郭昊函, 杨杰, 刘芳, 卢荣生

Constraint Related Fatigue Crack Initiation Life of GH4169 Superalloy

GUO Haohan, YANG Jie, LIU Fang, LU Rongsheng

图10 应变幅为0.6%时不同微缺口长度模型在循环10 cyc后的累积能量耗散

Fig.10 Accumulated energy dissipation illustrations of models with different micro-notch lengths when $Δ ε_{t}$ = 0.6% and the cycle number is 10 cyc (unit: MJ/m³)
(a) b = 15 μm (b) b = 45 μm (c) b = 75 μm (d) b = 105 μm