峰值应力对Ti6242压气机盘锻件室温保载效应的影响
Influence of Peak Stress on Room Temperature Dwell Effect in Ti6242 Compressor Disc Forging
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 |
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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4 不同峰值应力下Ti6242合金保载疲劳断口的SEM像 |
| Fig.4 SEM images of DF fracture surfaces of Ti6242 alloy at peak stresses of 0.85σ0.2 (a1, b1), 0.94σ0.2 (a2, b2), 0.98σ0.2 (a3, b3), and 1.05σ0.2 (a4, b4), showing low magnification of the crack initiation zones (a1-a4) and high magnification images of quasi-cleavage facets and dimples in the region outlined by the elliptical circles in Figs.4a1-a4 (b1-b4) |
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