Mechanical properties of Al-based metal matrix composites reinforced with Zr-based glassy particles produced by powder metallurgy

被引：257

作者：

Scudino, S. ^{[1
]}

Liu, G. ^{[1
,2
,3
]}

Prashanth, K. G. ^{[1
,4
]}

Bartusch, B. ^{[1
]}

Surreddi, K. B. ^{[1
]}

Murty, B. S. ^{[4
]}

Eckert, J. ^{[1
,5
]}

机构：

[1] IFW Dresden, Inst Komplexe Mat, D-01171 Dresden, Germany

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[3] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, Xian 710049, Peoples R China

[4] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India

[5] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany

来源：

ACTA MATERIALIA | 2009年 / 57卷 / 06期

关键词：

Powder consolidation; Metal matrix composites; Metallic glasses; Mechanical properties; Effective medium approximation; PACKED CERAMIC PARTICLES; QUASI-CRYSTAL FORMATION; FRACTURE MECHANISMS; ALUMINUM; ALLOYS; FABRICATION; BEHAVIOR; SHEAR; SIZE; MICROSTRUCTURE;

D O I：

10.1016/j.actamat.2009.01.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Al-based metal matrix composites consisting of pure Al reinforced with different amounts of Mechanically alloyed Zr(57)Ti(8)Nb(2.5)Cu(13.9)Ni(11.1)Al(7.5) glassy powder were produced by powder metallurgy, and their mechanical properties were investigated by room temperature compression tests. The samples were consolidated into highly dense bulk specimens at temperatures within the Supercooled liquid region in order to take advantage of the viscous flow behavior of the glassy powder. Compression tests show that the addition of the glass reinforcement increases the strength of pure Al from 155 to 250 MPa, while retaining appreciable plastic deformation with a fracture strain ranging between 70% and 40%. The yield strength and the elastoplastic deformation of such Composites containing a high volume fraction of glassy particles were accurately modeled using a shear lag model and a self-consistent effective medium approach. Finally. the fracture characteristics of the reinforcing particles were rationalized using a proposed fracture criterion. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：2029 / 2039

页数：11

共 55 条

[1]

*AM SOC MET, 1979, MET HDB

[2]

[Anonymous], 2003, ANN BOOK ASTM STAND

[3]

[Anonymous], 2000, E989AR00 ASTM

[4] STRENGTHENING OF COMPOSITES DUE TO MICROSTRUCTURAL CHANGES IN THE MATRIX [J].

ARSENAULT, RJ ;

WANG, L ;

FENG, CR .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (01) :47-57

[5] 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

[6] WORK-HARDENING OF COPPER-SILICA .5. EQUILIBRIUM PLASTIC RELAXATION BY SECONDARY DISLOCATIONS [J].

BROWN, LM ;

STOBBS, WM .

PHILOSOPHICAL MAGAZINE, 1976, 34 (03) :351-372

[7] Viscosity of the supercooled liquid and relaxation at the glass transition of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass forming alloy [J].

Busch, R ;

Bakke, E ;

Johnson, WL .

ACTA MATERIALIA, 1998, 46 (13) :4725-4732

[8]

Chawla K. K., 1987, COMPOSITE MAT SCI EN, P177

[9]

CHRISTENSEN RM, 1979, J MECH PHYS SOLIDS, V27, P315, DOI 10.1016/0022-5096(79)90032-2

[10]

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

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