Regarding the SiC particulates size associated microstructural characteristics on the aging behavior of Al-4.5 Cu metallic matrix

被引：10

作者：

Gupta, M ^{[1
]}

Lai, MO ^{[1
]}

Boon, MS ^{[1
]}

Herng, NS ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech & Prod Engn, Singapore 119260, Singapore

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 02期

关键词：

carbides; composites; metals; electron microscopy; mechanical properties;

D O I：

10.1016/S0025-5408(97)00220-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, aging characteristics of an aluminum-based metallic matrix reinforced with two different sizes of silicon carbide were investigated. The results showed similar aging kinetics in the case of unreinforced samples and composite samples containing coarser (34.4 mu m) SiC particulates and accelerated aging kinetics in the case of composite samples containing finer (8 mu m) SiC particulates. Results of microstructural characterization studies show that composite samples containing finer SiC particulates exhibited finer grain size, lower porosity, reduced cluster-to-particulate-size ratio, and superior interfacial integrity. The accelerated aging kinetics exhibited by composite samples containing a distribution of finer SiC particulates, when compared to the unreinforced and reinforced samples containing a distribution of coarser SiC particulates, were rationalized in terms of their microstructural characteristics. (C) 1998 Elsevier Science Ltd.

引用

页码：199 / 209

页数：11

共 27 条

[1] 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

[2] EFFECT OF HOMOGENEOUS HETEROGENEOUS PRECIPITATION ON AGING BEHAVIOR OF SICP/AL 2014 COMPOSITE [J].

CHAWLA, KK ;

ESMAEILI, AH ;

DATYE, AK ;

VASUDEVAN, AK .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (06) :1315-1319

[3]

Durrant G., 1995, Key Engineering Materials, V104-107, P155

[4]

GEIGER AL, 1991, JOM-J MIN MET MAT S, V43, P8

[5] Effect of type of processing on the microstructural features and mechanical properties of Al-Cu/SiC metal matrix composites [J].

Gupta, M ;

Lai, MO ;

Soo, CY .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 210 (1-2) :114-122

[6] MICROSTRUCTURAL EVOLUTION AND MECHANICAL-PROPERTIES OF SIC/AL2O3 PARTICULATE-REINFORCED SPRAY-DEPOSITED METAL-MATRIX COMPOSITES [J].

GUPTA, M ;

MOHAMED, F ;

LAVERNIA, E ;

SRIVATSAN, TS .

JOURNAL OF MATERIALS SCIENCE, 1993, 28 (08) :2245-2259

[7] EFFECTS OF TYPE OF PROCESSING ON THE MICROSTRUCTURAL FEATURES AND MECHANICAL-PROPERTIES OF AL-CU/SIC METAL-MATRIX COMPOSITES [J].

GUPTA, M ;

LU, L ;

LAI, MO ;

ANG, SE .

MATERIALS & DESIGN, 1995, 16 (02) :75-81

[8] EFFECT OF WEIGHT PERCENTAGE OF SIC PARTICULATES ON THE AGING BEHAVIOR OF 6061/SIC METAL-MATRIX COMPOSITES [J].

GUPTA, M ;

SURAPPA, MK .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1995, 14 (18) :1283-1285

[9] EFFECT OF INCREASE IN HETEROGENEOUS NUCLEATION SITES ON THE AGING BEHAVIOR OF 6061/SIC METAL-MATRIX COMPOSITES [J].

GUPTA, M ;

SURAPPA, MK .

MATERIALS RESEARCH BULLETIN, 1995, 30 (08) :1023-1030

[10]

GUPTA M, 1997, MAT RES B, V32, P231

← 1 2 3 →