Fabrication of TiB2 particulate reinforced magnesium matrix composites by powder metallurgy

被引：122
|
作者：
Wang, HY
Jiang, QC
Wang, Y
Ma, BX
Zhao, F
机构：
[1] Jilin Univ, Dept Mat Sci & Engn, Changchun 130025, Peoples R China
[2] Jilin Univ, Minist Educ, Key Lab Automobile Mat, Changchun 130025, Peoples R China
来源：
MATERIALS LETTERS | 2004年 / 58卷 / 27-28期
基金：
中国国家自然科学基金;
关键词：
powder metallurgy; magnesium; composites; particulate; microstructure;
D O I：
10.1016/j.matlet.2004.04.038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnesium metal matrix composites (MMCs) reinforced with 10, 20 and 30 vol.% TiB2 particulates, respectively, were fabricated by powder metallurgy. The microstructure, porosity, hardness and abrasive wear behavior of the composites were evaluated. Microstructural characterization of Mg MMCs showed generally uniform reinforcement distribution. As compared with pure Mg, the hardness (HB) values of Mg MMCs reinforced with 10, 20 and 30 vol.% TiB2 Particulates were increased by 41%, 106% and 181%, respectively. The abrasive wear tests showed that the wear resistance of Mg MMCs is increased with the increasing of the reinforcement volume fraction. This was due to the strong particulate-matrix bonding and high hardness of the TiB2 particulate. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：3509 / 3513
页数：5
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