Mechanical properties and thermal stability of ZnAl2O4-coated aluminum borate whiskers reinforced 2024Al composite

被引：0

作者：

H. Y. Yue

W. D. Fei

L. D. Wang

机构：

[1] Harbin Institute of Technology,School of Materials Science and Engineering

来源：

Journal of Materials Science | 2008年 / 43卷

关键词：

Tensile Property; Ultimate Tensile Strength; Interfacial Reaction; MgAl2O4; 2024Al Matrix;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

ZnAl2O4-coated aluminum borate whiskers reinforced 2024Al composite was fabricated by squeeze casting. Interfacial microstructures and tensile properties of the composite were investigated. The results show that ZnAl2O4 coating of the whiskers can improve the wettability of the whiskers by molten aluminum during squeeze casting, resulting in the increase of tensile properties of the composite. During thermal exposure, ZnAl2O4 at the interface can effectively hinder harmful interfacial reactions, resulting in the improvement of thermal stability of the composite at high temperatures. Fracture mechanisms of the composite in as-cast and after thermal exposure were also investigated.

引用

页码：6233 / 6237

页数：4

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