峰值应力对Ti6242压气机盘锻件室温保载效应的影响 |
徐小严, 方超, 邱建科, 张蒙蒙, 史栋刚, 马英杰, 雷家峰, 杨锐 |
Influence of Peak Stress on Room Temperature Dwell Effect in Ti6242 Compressor Disc Forging |
XU Xiaoyan, FANG Chao, QIU Jianke, ZHANG Mengmeng, SHI Donggang, MA Yingjie, LEI Jiafeng, YANG Rui |
图3 不同峰值应力下Ti6242合金常规疲劳和保载疲劳断口形貌的OM像 |
Fig.3 OM images illustrating NF (a1-a3) and DF (b, b1-b3) fracture surfaces of Ti6242 alloy at peak stresses of 0.85σ0.2 (b), 0.94σ0.2 (a1, b1), 0.98σ0.2 (a2, b2), and 1.05σ0.2 (a3, b3) with the faceted initiation sites circumscribed by elliptical circles |
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