Effect of melt superheating on the morphology of MC carbide in a cast Ni-base superalloy M963

被引：0
|
作者：
Yin, Feng-Shi [1 ]
Sun, Xiao-Feng [1 ]
Yuan, Chao [1 ]
Guan, Heng-Rong [1 ]
Hu, Zhuang-Qi [1 ]
机构：
[1] Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
来源：
Journal Wuhan University of Technology, Materials Science Edition | 2002年 / 17卷 / 03期
关键词：
Carbides - Composition - Differential thermal analysis - Energy dispersive spectroscopy - Ingots - Metal melting - Metallographic microstructure - Morphology - Nickel alloys - Scanning electron microscopy - Solid solutions - Solidification;
D O I：
10.1007/bf02838537
中图分类号：
学科分类号：
摘要：
The effect of the melt superheating temperature on the as-cast microstructure of a cast nickel-base superalloy M963 has been investigated. The results show that the as-cast microstructure of the alloy consists of γ solid solution matrix, γ′ precipitate in cubic shape, (γ + γ′) eutectic and MC carbide, and the morphology of MC carbide in the microstructure can be varied from coarse scriptlike, fine scriptlike to fine cubelike or discontinuous particles by increasing the melt superheating temperature. The mechanism of melt superheating is discussed by means of differential thermal analysis (DTA) technique.
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页码：42 / 45
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