RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

The effect of matrix to reinforcement particle size ratio (PSR) on the microstructure and mechanical properties of a P/M processed AlCuMn/SiCp MMC

Auteur(s) / Author(s)

SLIPENYUK A. (1) ; KUPRIN V. (1) ; MILMAN Yu. (1) ; SPOWART J. E. (2) ; MIRACLE D. B. (3) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Institute for Problems of Materials Science, 3 Krzhizhanovky str., Kyiv 03680, UKRAINE
(2) UES Inc., Dayton, OH 45432, ETATS-UNIS
(3) Air-Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, OH 45433, ETATS-UNIS

Résumé / Abstract

Matrix to reinforcement particle size ratio (PSR) is the main factor governing the homogeneity of the reinforcement particle distribution in composites manufactured by the powder metallurgy route. To improve the homogeneity of the distribution, reinforcements with larger average particle size should be used. At the same time, increasing the reinforcement particle size leads to worsening of the mechanical properties due to lower work hardening and higher damage accumulation rates. It is therefore important to optimize the microstructure somewhere in between a smaller reinforcement particle size and a more homogeneous spatial distribution. The effect of PSR on the reinforcement spatial distribution, fabricability, and resulting mechanical properties of a P/M processed AlCuMn/SiC/15p composite was investigated. It was shown that increasing the PSR results in a less-uniform reinforcement distribution, which in turn leads to a decrease in the material fabricability and a general worsening of the mechanical properties. A close to linear dependence of the mechanical properties (yield stress, UTS, elongation before fracture, Young's modulus) on PSR was found. Tensile elongation shows the highest sensitivity to the worsening of the homogeneity of the reinforcement spatial distribution caused by increasing the PSR. The effect of microstructural homogeneity on the relative change of mechanical properties does not seem to depend on matrix alloy plasticity.

Revue / Journal Title

Materials science & engineering. A, Structural materials : properties, microstructure and processing    ISSN  0921-5093 

Source / Source

2004, vol. 381, no1-2, pp. 165-170 [6 page(s) (article)] (16 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1988) (Revue)

Mots-clés anglais / English Keywords

Inorganic compound

;

Aluminium base alloys

;

Dispersion strengthened metal

;

Metal matrix composite

;

Silicon carbide

;

Composite material

;

Young modulus

;

Rupture

;

Elongation (mechanics)

;

Yield strength

;

Tensile property

;

Damaging

;

Strain hardening

;

Powder metallurgy

;

Particle size

;

Microstructure

;

Plasticity

;

Mechanical properties

;

Mots-clés français / French Keywords

Composé minéral

;

SiC

;

C Si

;

Alliage base aluminium

;

Métal renforcé dispersion

;

Composite matrice métallique

;

Silicium carbure

;

Matériau composite

;

Module Young

;

Rupture

;

Allongement mécanique

;

Limite élasticité

;

Propriété traction

;

Endommagement

;

Durcissement déformation

;

Métallurgie poudre

;

Dimension particule

;

Microstructure

;

Plasticité

;

Propriété mécanique

;

Mots-clés espagnols / Spanish Keywords

Compuesto inorgánico

;

Metal reforzado dispersión

;

Compuesto matriz metalico

;

Silicio carburo

;

Material compuesto

;

Módulo Young

;

Ruptura

;

Alargamiento (mecánico)

;

Límite elasticidad

;

Propiedad tracción

;

Deterioración

;

Endurecimiento deformación

;

Metalurgia polvo

;

Dimensión partícula

;

Microestructura

;

Plasticidad

;

Propiedad mecánica

;

Mots-clés d'auteur / Author Keywords

Metal matrix composites

;

Powder metallurgy

;

Particle size ratio

;

Reinforcement distribution

;

Structure

;

Mechanical behavior

;

Localisation / Location

INIST-CNRS, Cote INIST : 12899 A, 35400011397610.0210

Nº notice refdoc (ud4) : 16042477



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas