Superplasticity in a fullerene-dispersed Mg-Al-Zn alloy composite

被引：18
|
作者：
Watanabe, H
Fukusumi, M
Ishikawa, K
Shimizu, T
机构：
[1] Osaka Municipal Tech Res Inst, Joto Ku, Osaka 5368553, Japan
[2] Mitsubishi Chem Corp, Osaka Branch Off, Chuo Univ, Osaka 5410044, Japan
来源：
SCRIPTA MATERIALIA | 2006年 / 54卷 / 09期
关键词：
magnesium alloys; fullerene; metal matrix composites (MMC); superplasticity; extrusion;
D O I：
10.1016/j.scriptamat.2006.01.020
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A 1 mass% fullerene-dispersed Mg-Al-Zn alloy composite with an initial matrix grain size of 2 mu m was processed by extruding a mixture of magnesium machined chips and fullerene powder. The composite exhibited superplasticity, with an elongation of 256% at 548 K even at a relatively high strain rate of 10(-2) s(-1). The addition of fullerene had little effect on the flow stress, whereas it decreased the elongation by comparison with the alloy. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1575 / 1580
页数：6
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