Investigation on microstructures and interface character of B4C particles reinforced 2024Al matrix composites fabricated by mechanical alloying

被引：55
|
作者：
Nie, Cunzhu [1 ]
Gu, Jiajun [1 ]
Liu, Junliang [2 ]
Zhang, Di [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China
[2] Baoshan Iron & Steel Co Ltd, Baosteel Res Inst, Shanghai 201900, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 454卷 / 1-2期
关键词：
B(4)C particulates reinforced aluminum matrix composites; mechanical alloying; microstructure; interface;
D O I：
10.1016/j.jallcom.2006.12.024
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The microstructure and interface of B(4)C particulate reinforced 2024 aluminum alloy matrix composites produced by mechanical alloying and hot extrusion were investigated. The results showed that the B(4)C particles could be dispersed into based alloy uniformly by high-energy milling technique. The twin structure of B(4)C particle was detected frequently in this experiment. A refined microstructure of matrix was obtained with size of sub-grains about 400 nm. EDX, TEM and SAD analysis indicated that the MgO particles were formed near the interface during fabrication. The temperature increment during high-energy milling was attributed to the formation of B(2)O(3) which promoting generation of MgO particles during hot consolidation processing. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：118 / 122
页数：5
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