Study on Property and Microstructure of In-situ TiC<sub>p</sub>/Al-4Cu Composite

Ma Mingzhen

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Study on Property and Microstructure of In-situ TiC_p/Al-4Cu Composite
Issue 2, Pages: 3-4(2001)
Published：2001
DOI：
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DOI：

Ma Mingzhen. Study on Property and Microstructure of In-situ TiC_p/Al-4Cu Composite[J]. Special Casting & Nonferrous Alloys, 2001, (2): 3-4. DOI：

摘要

应用反应合成工艺制备了自生TiCP/Al 4Cu复合材料。通过XRD分析了自生TiCP/Al 4Cu复合材料的相组成

用SEM观察了自生TiCP/Al 4Cu复合材料的微观组织和断口形貌

测试了自生TiCP/Al 4Cu复合材料的力学性能。结果表明 :自生TiCP/Al 4Cu复合材料增强颗粒细小圆整

在基体中分布均匀。在T6状态下具有优良的综合力学性能

Abstract

In situ TiC p/Al 4Cu composite was prepared by reactive synthesis technique. The phase constituent

microstructure and fracture morphology have been observed by means of XRD

SEM. The mechanical property and fluidity of TiC p/Al 4Cu composite was tested. The results showed that the finecircular reinforced particulates in TiC p/Al 4Cu in situ composite distribute hamegeously into the matrix and no reactive layer in the interface surface between reinforced particulate and matrix. The composite has excellent comprehensive mechanical properties under T6 heat treated state. The fluidity of composite increases with the increase of temperature and decreases with the increase of volume fraction of reinforced particulates.