Application of ARB process for manufacturing high-strength, finely dispersed and highly uniform Cu/Al2O3 composite

The accumulative roll bonding (ARB) process was used as an effective alternative method for manufacturing high-strength, finely dispersed and highly uniform copper/alumina metal matrix composites (MMC). The microstructural evolution and mechanical properties of the Cu/15 vol% Al2O3 composites during...

Full description

Saved in:
Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2010, Vol.527 (27-28), p.7430-7435
Main Authors: JAMAATI, Roohollah, TOROGHINEJAD, Mohammad Reza
Format: Article
Language:English
Subjects:
ALUMINUM OXIDE
Annealing
ANNEALING PROCESSES
Applied sciences
BONDING
COMPOSITES
Copper
COPPER (PURE)
Dispersion hardening metals
Elasticity. Plasticity
Elongation
Exact sciences and technology
HARDNESS
MANUFACTURE
Materials science
MECHANICAL PROPERTIES
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metal matrix composites
Metals. Metallurgy
Microstructure
MICROSTRUCTURES
Particulate composites
Powder metallurgy. Composite materials
Production techniques
Strain hardening
STRAIN HARDENING MECHANISMS
TENSILE STRENGTH
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The accumulative roll bonding (ARB) process was used as an effective alternative method for manufacturing high-strength, finely dispersed and highly uniform copper/alumina metal matrix composites (MMC). The microstructural evolution and mechanical properties of the Cu/15 vol% Al2O3 composites during various ARB cycles are reported. The MMC, produced by nine ARB cycles, had a homogeneous distribution and strong bonding between particles and matrix without any porosity. When the number of cycles increased, not only did elongation increase but also the tensile strength of the composites improved by 2.5 times compared to that of annealed copper used as the original raw material. Strengthening in the composites was explained by strain hardening, grain refinement, reinforcing role of particles, uniformity, bonding quality and size of particles. The findings also revealed that after the first cycle, hardness rapidly increased, then dwindled and finally saturated by further rolling.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2010.08.038