高合金化GH4065镍基变形高温合金点状偏析研究
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王资兴,黄烁,张北江,王磊,赵光普
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Study on Freckle of a High-Alloyed GH4065 Nickel Base Wrought Superalloy
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Zixing WANG,Shuo HUANG,Beijiang ZHANG,Lei WANG,Guangpu ZHAO
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| 表3 GH4065合金点偏凝固过程与热力学平衡状态的第二相热力学统计 |
| Table 3 Thermodynamic statistics of the secondary phase in the GH4065 alloy during solidification process and at thermodynamic equilibrium |
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| Phase | Position | Solidification | Thermodynamic |
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| | Precipitated beginning Tem. / ℃ | Mass fraction / % | Solidus Tem. / ℃ | Mass fraction / % | | γ | Freckle | 1294.8 | Bal. | 1294.8 | Bal. | | Matrix | 1350.5 | Bal. | 1350.5 | Bal. | | γ′ | Freckle | 1160.0 | 39.0 | 1134.1 | 40.8 | | Matrix | 1100.9 | 30.0 | 1108.6 | 38.3 | | η | Freckle | 1220.0 | 8.8 | 1215.2 | 17.7 | | Matrix | 1196.2 | 1.3 | - | 0 | | M2B3 | Freckle | 1150.0 | 0.26 | 1112.8 | 0.62 | | Matrix | 1178.2 | 0.10 | 1098.1 | 0.18 | | MC | Freckle | 1282.1 | 0.37 | 1282.3 | 0.41 | | Matrix | 1265.0 | 0.074 | 1272.7 | 0.081 |
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