Fabrication of TiB2 particulate reinforced magnesium matrix composites by two-step processing method

被引：59
作者：
Wang, Y
Wang, HY
Xiu, K
Wang, HY
Jiang, QC [1 ]
机构：
[1] Minist Educ, Key Lab Automobile Mat, Changchun 130025, Peoples R China
[2] Jilin Univ, Dept Mat Sci & Engn, Changchun 130025, Peoples R China
来源：
MATERIALS LETTERS | 2006年 / 60卷 / 12期
基金：
中国国家自然科学基金;
关键词：
magnesium; composite; TiB2; wear;
D O I：
10.1016/j.matlet.2005.11.065
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnesium matrix composites reinforced with 2, 5 and 7.5 wt.% fine TiB2 (similar to 7 mu m) particulates were fabricated by a novel two-step processing method, i.e. adding a TiB2-Al compact mixed with fine TiB2 and Al powders to magnesium melt and using a semi-solid slurry stirring technique. The microstructure and properties such as porosity, hardness and wear resistance of the composites were investigated. The distribution of fine TiB2 particulates is relatively homogeneous throughout the Mg matrix. As compared with as-cast AZ91, the hardness and wear resistance of the Mg composite was higher and increased with increasing of TiB2 content, but the porosity of the composites was relatively higher and increased with increasing of TiB2 content. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：1533 / 1537
页数：5
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