粉末冶金Inconel 718合金的热等静压成形和原始颗粒边界的消除
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田晓生, 卢正冠, 徐磊, 吴杰, 杨锐
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Hot Isostatic Densification of Inconel 718 Powder Alloy and Elimination of Prior Particle Boundaries
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TIAN Xiaosheng, LU Zhengguan, XU Lei, WU Jie, YANG Rui
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表2 粉末冶金Inconel 718合金特殊高温热处理前后的力学性能
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Table 2 Mechanical properties of PM Inconel 718 before and after special high-temperature heat treatments
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| Sample | Temperature | Tensile property | Impact energy |
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| UTS / MPa | YS / MPa | El / % | Z / % | J |
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| HT | RT | 1398 ± 3 | 1070 ± 1 | 13.5 ± 1.5 | 10 ± 2 | 16 ± 1 | | SHT1 | | 1398 ± 4 | 1182 ± 1 | 17.0 ± 3.0 | 20 ± 6 | 29 ± 1 | | SHT2 | | 1394 ± 2 | 1087 ± 3 | 22.5 ± 1.5 | 29 ± 6 | 34 ± 1 | | SHT3 | | 1430 ± 6 | 1215 ± 1 | 25.0 ± 1.0 | 33 ± 1 | 30 ± 2 | | HT | 650oC | 1135 ± 6 | 908 ± 3 | 15.0 ± 1.0 | 15 ± 1 | - | | SHT1 | | 1169 ± 14 | 995 ± 5 | 12.0 ± 1.5 | 19 ± 1 | - | | SHT2 | | 1166 ± 4 | 959 ± 8 | 14.0 ± 1.5 | 11 ± 2 | - | | SHT3 | | 1173 ± 7 | 1006 ± 0 | 13.5 ± 0.5 | 18 ± 0 | - |
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