Development of a nucleation inhibitive coated mold for the rapid solidification of superalloy melt

被引：3
|
作者：
Liu, F [1 ]
Yang, GC [1 ]
Guo, XF [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2002年 / 120卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
SiO2-ZrO2-B2O3; coating mold; sol-gel processing; nucleation inhibition; superalloy; rapid solidification;
D O I：
10.1016/S0924-0136(01)01194-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The development of a glass-lined mold from gels in the ternary system of SiO2-ZrO2-B2O3 by adopting the shell molding technique and sol-gel processing has been investigated. The crystallization characteristics of ZrO2 particles and the high temperature structure stability of Si-Zr-B coating were demonstrated. The inhibitive effect of B2O3 on crystallization in the Si-Zr-B coating was explained. Finally, the result that DD3 single crystal superalloy can obtain high undercooling and realize rapid solidification in it establishes that the Si-Zr-B coated mold has an ideal non-catalytic nucleation inhibition for superalloy melt. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：202 / 207
页数：6
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