WEAR BEHAVIOR OF AZ91D MAGNESIUM COMPOSITE

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Sigma Mühendislik ve Fen Bilimleri Dergisi
Volume:33 Issue:3
WEAR BEHAVIOR OF AZ91D MAGNESIUM COMPOSITE

WEAR BEHAVIOR OF AZ91D MAGNESIUM COMPOSITE

Authors : Yaman ERARSLAN, Cem AKÇA

Pages : 465-471

View : 33 | Download : 7

Publication Date : 2015-09-01

Article Type : Research Paper

Abstract :AZ91D alloy was produced using the conventional casting methods in a local foundry. Then, SiC ceramic additive materials insert ignore into journalissuearticles values(particulates); with 2%, 4% and 8% by weight insert ignore into journalissuearticles values(average grain size of 7 µm and 32 µm); were mixed with AZ91 alloy by stir-casting method. The properties of the AZ91 alloy and AZ91/SiC composite materials produced were determined by means of hardness and wear tests, and microstructural characterization was conducted by optical microscopy, scanning electron microscopy and x-ray diffraction. It was observed that the improvement in hardness for the composite with a diameter of 7 µm diameter is higher than the composite with a diameter of 32 µm. Wear testing was conducted through the ball-on-disc method at a rate of 10 cm.s-1 under a load of 5 N. The friction coefficient was found to be between the 0.115-0.172 intervals, and no wear was observed on the alumina insert ignore into journalissuearticles values(Al2O3); ball material.
Keywords : AZ91 alloy, metal matrix composite, wear

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