Relationship between Al 2 O 3 Content and Wear Behavior of Al+2% Graphite Matrix Composites
Open Access
- 1 January 2019
- journal article
- research article
- Published by Walter de Gruyter GmbH in Science and Engineering of Composite Materials
- Vol. 27 (1) , 177-185
Abstract
In this study, the microstructure and wear behaviours of aluminium composites, reinforced with different amounts of (3-12%) Al 2 O 3 and 2% (% vol.) graphite were investigated. The Al 2 O 3 and graphite were added to Al matrix and mechanically alloyed for 60 minutes. Subsequently, the mechanically alloyed powders were pressed under 700MPa pressure and sintered at 600 ∘ C for 120 minutes. The produced aluminium composites were characterized by microstructure, scanning electron microscope (SEM), X-ray diffraction (XRD), density and hardness measurements. Afterwards, wear tests were carried out on a block on-ring type wear testing device, under three different loads and four different sliding distances. As a result, the hardness and density of composites were observed to increase due to the increase in the amount of reinforcement in aluminium composites. The highest hardness and density values were obtained in composite material containing 12% Al 2 O 3 . The wear tests, the lowest weight loss was also obtained in composite containing 12% Al 2 O 3 .Keywords
This publication has 37 references indexed in Scilit:
- Mechanical properties of tri-modal Al matrix composites reinforced by nano- and submicron-sized Al2O3 particulates developed by wet attrition milling and hot extrusionMaterials & Design (1980-2015), 2010
- Effect of addition of graphite particulates on the wear behaviour in aluminium–silicon carbide–graphite compositesMaterials & Design (1980-2015), 2010
- Wear resistance of aluminium alloy and its composites reinforced by Al2O3 particlesJournal of Materials Processing Technology, 2007
- Synthesis and characterization of high volume fraction Al–Al2O3 nanocomposite powders by high-energy millingMaterials Science and Engineering: A, 2006
- Friction and wear behavior of Ni–graphite composites prepared by electroformingMaterials & Design (1980-2015), 2006
- Fabrication of metal matrix composites by a high-pressure centrifugal infiltration processJournal of Materials Processing Technology, 2005
- Structure, thermal and mechanical properties of in situ Al-based metal matrix composite reinforced with Al2O3 and TiC submicron particlesMaterials Chemistry and Physics, 2005
- P/M aluminum matrix composites: an overviewJournal of Materials Processing Technology, 2003
- Effect of mechanical alloying on the morphology, microstructure and properties of aluminium matrix composite powdersMaterials Science and Engineering: A, 2003
- The design and fabrication of an alumina reinforced aluminum composite materialComposites Part A: Applied Science and Manufacturing, 2000