Preparation of In-situ MoSi<sub>2</sub>-Fe Composites by SHS-casting

Wang Shixin; Yan Youwei

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Preparation of In-situ MoSi₂-Fe Composites by SHS-casting
Issue 1, Pages: 55-57(2006)
Published： 2006 ，
DOI：

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[1]王世鑫,严有为.SHS-熔铸工艺制备MoSi_2-Fe原位复合材料的研究[J].特种铸造及有色合金,2006(01):55-57+1.

Wang Shixin, Yan Youwei. Preparation of In-situ MoSi₂-Fe Composites by SHS-casting. [J]. Special Casting & Nonferrous Alloys (1):55-57(2006)
[1]王世鑫,严有为.SHS-熔铸工艺制备MoSi_2-Fe原位复合材料的研究[J].特种铸造及有色合金,2006(01):55-57+1. DOI：

Wang Shixin, Yan Youwei. Preparation of In-situ MoSi₂-Fe Composites by SHS-casting. [J]. Special Casting & Nonferrous Alloys (1):55-57(2006) DOI：

摘要

以MoO3-Al-Si-Fe为反应体系

提出了制备MoSi2-Fe原位复合材料的SHS-熔铸工艺。分析了体系的SHS反应热力学、SHS过程中Mo-Si-Fe合金熔体的形成及冷却速度对熔体凝固组织的影响。结果表明

利用所提出的SHS-熔铸工艺可实现MoSi2-Fe复合材料的原位合成与液态成形一体化

制备的复合材料由原位合成的MoSi2和Fe组成

Fe以粘结相分布在MoSi2的边界上;提高熔体的冷却速度

可明显降低复合材料组织中MoSi2的晶粒尺寸。

Abstract

In-situ MoSi2-Fe composites were prepared in MoO3-Al-Si-Fe reaction system by SHS-casting. The effects of reaction thermodynamics

formation of Mo-Si-Fe alloy melt and cooling rate during SHS on the microstructure of the composites are researched. The experiment indicates that in-situ MoSi2-Fe composites can be prepared successfully by SHS-casting. The composites are composed of Mo-Si2 and Fe

where Fe phase formed is distributed along the MoSi2 boundary. The grain size of MoSi2 can be reduced remarkably with the increase of the cooling rate of the melt.

关键词

MoSi2-Fe原位复合材料自蔓延高温合成（SHS）熔铸

Keywords

MoSi2-Fe CompositesSHSComposites

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Effects of Chemical Composition and B-Fe on Ti-Al Base Intermetallic Compound by SHS

Preparation of In-situ MoSi2-Fe Composites by SHS-casting

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Abstract

关键词

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Preparation of In-situ MoSi₂-Fe Composites by SHS-casting