Microstructure and mechanical properties of SiC particle reinforced magnesium composites processed by injection molding

被引：41

作者：

Rauber, C. ^{[1
]}

Lohmueller, A. ^{[1
]}

Opel, S. ^{[2
]}

Singer, R. F. ^{[2
]}

机构：

[1] Neue Mat Furth GmbH, D-90762 Furth, Germany

[2] Univ Erlangen Nurnberg, Inst Sci & Technol Met, D-91058 Erlangen, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 19-20期

关键词：

MMC; Magnesium injection molding; Particle reinforcement; AZ91; AJ62; SiC; METAL-MATRIX COMPOSITES; POWDER-METALLURGY; FABRICATION;

D O I：

10.1016/j.msea.2011.04.088

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructure and the mechanical properties of AZ91 and AJ62 reinforced with SiC particles processed by magnesium injection molding were investigated. As a starting point, melt stirring experiments were carried out on a small laboratory scale. In both processes, injection molding and melt stirring, the particles were found to be distributed homogeneously within in the matrix. Reactions between matrix and reinforcement could be prevented by employing appropriate processing temperatures. The mechanical properties of the magnesium alloys could be significantly improved by the incorporation of SiC particles. Concerning the yield strength, the contributions of various strengthening mechanisms will be discussed in the paper. Based on the strength calculations, recommendations are given on how to further optimize the mechanical properties. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：6313 / 6323

页数：11

共 33 条

[1]

Arsenault R.J., 1991, Metal Matrix Composites: Mechanisms and Properties, P79

[2] MICROSTRUCTURE OF FIBER AND PARTICULATE SIC IN 6061-AL COMPOSITES [J].

ARSENAULT, RJ ;

FISHER, RM .

SCRIPTA METALLURGICA, 1983, 17 (01) :67-71

[3] DISLOCATION GENERATION DUE TO DIFFERENCES BETWEEN THE COEFFICIENTS OF THERMAL-EXPANSION [J].

ARSENAULT, RJ ;

SHI, N .

MATERIALS SCIENCE AND ENGINEERING, 1986, 81 (1-2) :175-187

[4]

ASHBY MF, 2006, MAT SELECTION MECH D, P935

[5]

BECHMANN F, 2007, ADV LIGHTWEIGHT MAT, V2015

[6]

Chawla N., 2006, Metal matrix composites

[7]

Clyne T.W., 1993, INTRO METAL MATRIX C

[8]

DODD SB, 1997, P 1 ISR INT C MAGN S, P337

[9] Magnesium strengthened by SiC nanoparticles [J].

Ferkel, H ;

Mordike, BL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 298 (1-2) :193-199

[10]

GOPALAKRISHNA V, 1996, P 3 INT MAGN C MANCH, P575

← 1 2 3 4 →