GH4169合金圆盘时效过程残余应力的演化规律研究
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秦海龙,张瑞尧,毕中南,杜洪标,张金辉
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Study on the Evolution of Residual Stress During Ageing Treatment in a GH4169 Alloy Disk
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Hailong QIN,Ruiyao ZHANG,Zhongnan BI,Lee Tung Lik,Hongbiao DONG,Jinhui DU,Ji ZHANG
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| 表1 升温过程中的晶格常数、应变及残余应力随温度的变化情况 |
| Table 1 Evolution of lattice parameter (a), strain and corresponding residual stress during the heating process |
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Temperature ℃ | Direction | a / nm | Strain / 10-6 | Stress / MPa |
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| Value | Error | Value | Error | Value | Error |
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20 | Hoop/Radial | 0.360768 | 0.0000075 | 1251.68 | 20.82 | 340.62 | 10.01 | | Axial | 0.359896 | 0.0000072 | -1168.42 | 19.98 | -33.34 | 9.88 | 340 | Hoop/Radial | 0.362451 | 0.0000085 | 1373.10 | 23.48 | 321.85 | 9.28 | | Axial | 0.361486 | 0.0000079 | -1292.98 | 21.83 | -60.70 | 9.04 | 530 | Hoop/Radial | 0.363492 | 0.0000091 | 1315.11 | 25.07 | 289.73 | 9.33 | | Axial | 0.362550 | 0.0000085 | -1279.69 | 22.59 | -65.71 | 8.99 | 720 | Hoop/Radial | 0.364428 | 0.0000101 | 1165.99 | 27.75 | 227.67 | 10.38 | | Axial | 0.363502 | 0.0000088 | -1351.96 | 24.18 | -77.74 | 9.94 |
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