Hot compressive deformation behavior of a eutectic Al-Si alloy based composite reinforced with α-Si3N4 whisker

被引：19

作者：

Feng, AH ^{[1
]}

Geng, L ^{[1
]}

Zhang, J ^{[1
]}

Yao, CK ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 82卷 / 03期

关键词：

deformation; DSC; TEM; composite materials;

D O I：

10.1016/S0254-0584(03)00323-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Elevated temperature compressive deformation behavior of a 4032 aluminum alloy matrix composite reinforced with 20 vol.% alpha-Si3N4 whisker was investigated at the strain rate from 0.016 to 1.0 s(-1). The deformation temperatures were below and above the solidus temperature of the composite, which was determined by differential scanning calorimeter (DSC). It was found that the flow stress of the composite decreased with increasing compressive temperature. The microstructure of the composite was observed and analyzed by using optical microscope (OM) and TEM. The morphology of eutectic Al-Si was found to plays an important role in the compressive deformation behavior of the composite. In addition, there are interfacial reactions between the matrix alloy and the Si3N4 whiskers due to segregation of the alloy elements near the matrix/reinforcement interfaces. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：618 / 621

页数：4

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