Alloying and phase stability in niobium silicide in-situ composites

被引：0
|
作者：
Zhao, JC [1 ]
Bewlay, BP [1 ]
Jackson, MR [1 ]
Peluso, LA [1 ]
机构：
[1] GE Co, Corp Res & Dev, Schenectady, NY 12301 USA
来源：
STRUCTURAL INTERMETALLICS 2001 | 2001年
关键词：
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In-situ composites based on Nb silicides have great potential for future high-temperature applications. This paper will describe phase stability in the Nb-Ti-Si-Cr-Hf-Al system by examining the related key binary and ternary systems using new experimental data obtained from a high-efficiency diffusion multiple approach, as well as previous literature data. The Nb-Si, Nb-Ti-Si, Nb-Hf-Si, Nb-Cr-Si, Ti-Cr-Si, and Nb-Al-Si phase diagrams are discussed. The focus of this paper is placed on the phases that are major constituents in the composites, such as the liquid phase, the Nb-Ti-based bcc metal phase, Nb5Si3, Ti5Si3, Nb3Si, and the Cr2Nb-based Laves phases. Alloying effects of various additions of elements, such as Ti, Hf, Cr, Al to Nb-Si are discussed.
引用
收藏
页码：483 / 491
页数：9
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