Thermodynamic calculation and precipitation behavior of α-Cr phase in IN718 alloy

被引：0
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作者：
Wu, Cuiwei [1 ]
Dong, Jianxin [1 ]
Zhang, Maicang [1 ]
Wang, Gailian [1 ]
Xie, Xishan [1 ]
机构：
[1] Sch. of Mat. Science and Engineering, Univ. of Sci. and Technology Beijing, Beijing 100083, China
来源：
Jinshu Xuebao/Acta Metallurgica Sinica | 2001年 / 37卷 / 11期
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摘要：
The precipitation behavior of α-Cr phase in IN718 alloy was studied by thermodynamic calculation and microstructural analyses. Thermodynamic calculation shows that the contents of Cr, Mo and Nb have an important effect on the precipitation behavior and precipitation temperature of a Cr phase. The Cr-IN718, Mo-IN718, Nb-IN718 pseudo-binary phase diagrams and the Cr-Fe-IN718 pseudo-ternary phase diagram at 650 °C were calculated, the critical composition, the precipitation temperature and the quantity of α-Cr phase were obtained. Furthermore, the precipitation of α-Cr phase in IN718 was identified by XRD and SEM.
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页码：1174 / 1178
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