THE EFFECT OF PARTICLE-SIZE AND VOLUME FRACTION ON THE AGING BEHAVIOR OF A LIQUID-PHASE SINTERED SIC/ALUMINUM COMPOSITE

被引：58

作者：

JANOWSKI, GM ^{[1
]}

PLETKA, BJ ^{[1
]}

机构：

[1] UNIV ALABAMA,DEPT MAT SCI & ENGN,BIRMINGHAM,AL 35294

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1995年 / 26卷 / 11期

关键词：

D O I：

10.1007/BF02669659

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aging response of a SiC particulate reinforced powder metallurgy aluminum composite was examined as a function of particle size and volume fraction. The addition of SiC particles ranging in size from 24 to 142 mu m at 9 vol pet had no effect on the aging kinetics of the composites. Acceleration of the aging behavior or inhibition of the initial stage of the age-hardening process was observed at 18 and 27 vol pet. The accelerated aging kinetics were consistent with smaller particles creating larger thermal misfit dislocation densities. In addition, it was shown that different combinations of ceramic particle size and volume fraction lead to similar effects on the aging behavior. Loss of the initial hardening response was attributed to the suppression of Guinier-Preston (GP) zone formation due to the annihilation of excess vacancies at the thermal misfit dislocations.

引用

页码：3027 / 3035

页数：9

共 25 条

[11] A THEORETICAL AND EXPERIMENTAL-STUDY OF ALUMINUM-ALLOY 6061-SIC METAL MATRIX COMPOSITE TO IDENTIFY THE OPERATIVE MECHANISM FOR ACCELERATED AGING [J].

DUTTA, I ;

BOURELL, DL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 112 :67-77

[12]

FRIEND CM, 1988, CAST REINFORCED META, P309

[13] EFFECT OF CERAMIC REINFORCEMENT ON THE AGING BEHAVIOR OF AN ALUMINUM-ALLOY [J].

HADIANFARD, MJ ;

MAI, YW ;

HEALY, JC .

JOURNAL OF MATERIALS SCIENCE, 1993, 28 (13) :3665-3669

[14] STRESS-ASSISTED PRECIPITATION ON DISLOCATIONS [J].

HAM, FS .

JOURNAL OF APPLIED PHYSICS, 1959, 30 (06) :915-926

[15] PRECIPITATION OF CARBON AND NITROGEN IN COLD-WORKED ALPHA-IRON [J].

HARPER, S .

PHYSICAL REVIEW, 1951, 83 (04) :709-712

[16]

HOUSE MB, 1991, JOM-J MIN MET MAT S, V43, P24

[17] THE INFLUENCE OF INTERFACIAL STRUCTURE ON THE MECHANICAL-PROPERTIES OF LIQUID-PHASE-SINTERED ALUMINUM-CERAMIC COMPOSITES [J].

JANOWSKI, GM ;

PLETKA, BJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1990, 129 (01) :65-76

[18] PLASTIC RELAXATION OF THERMOELASTIC STRESS IN ALUMINUM CERAMIC COMPOSITES [J].

KIM, CT ;

LEE, JK ;

PLICHTA, MR .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1990, 21 (03) :673-682

[19] AGING CHARACTERISTICS OF B4C-REINFORCED 6061-ALUMINUM [J].

NIEH, TG ;

KARLAK, RF .

SCRIPTA METALLURGICA, 1984, 18 (01) :25-28

[20] EFFECTS OF SIC WHISKERS AND PARTICLES ON PRECIPITATION IN ALUMINUM MATRIX COMPOSITES [J].

PAPAZIAN, JM .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1988, 19 (12) :2945-2953

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