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1 Ti6242合金压气机盘取样示意图及典型组织，常规疲劳和保载疲劳实验条件，及疲劳和拉伸实验试样几何尺寸 |
| Fig.1 Schematic of sampling in the AD-RD section plane (AD—axial direction, RD—radial direction, TD—transverse direction) (a) and typical OM image (b) of Ti6242 compressor disc; loading waveforms for normal fatigue (NF) (c1) and dwell fatigue (DF) (c2) with test parameters indicated (σ0.2—yield strength, σmax—peak stress, R—stress ratio); and dimensions of fatigue (d) and tensile (e) specimens (unit: mm) |
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