Fabrication and properties of Al matrix composites strengthened by in situ alumina particulates

被引：9

作者：

Fu, Gaofeng ^{[1
]}

Jiang, Lan ^{[1
]}

Liu, Ji ^{[1
]}

Wang, Yue ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China

来源：

JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2006年 / 13卷 / 03期

关键词：

aluminum matrix composite; alumina; microstructure; wear;

D O I：

10.1016/S1005-8850(06)60055-8

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

New aluminum matrix composites strengthened by Al2O3 particulates through stirring cast by adding NH4Al(SO4)(2) to the molten aluminum have been fabricated. TEM observation shows that in-situ Al2O3 particulates are generally spherical and they are uniformly distributed in the Al matrix. Dry sliding wear test results show that the volume loss of the unreinforced Al matrix is about three times that of the Al2O3 reinforced metal matrix composite (MMC) and the volume loss of the MMC fabricated by adding Al2O3 is larger than that of the MMC by adding NH4Al(SO4)(2). Lubricating sliding wear test results show that the volume loss of the MMCs increases more slowly than that of the matrix with the increasing of the load.

引用

收藏

页码：263 / 266

页数：4

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