Document Type : Original Article
Authors
1
Production Technology Department, Faculty of Technology & Education, Sohag University, Sohag 82524, EGYPT.
2
Mechanical Technology Department, Faculty of Technology & Education, Sohag University, Sohag 82524, EGYPT.
3
Basic Science Department, Faculty of Technology and Education, Helwan University, Cairo, EGYPT.
4
Department of Mechanical Engineering, Kyung Hee University, Suwon, 446-701, REPUBLIC OF KOREA.
Abstract
This study examines the effects of adding silicon carbide (SiC) on the mechanical properties of magnesium-tin (Mg-Sn-CaC) alloys produced via the powder metallurgy process. The objective is to evaluate how these carbides influence the hardness, strength, and overall mechanical performance of the Mg-Sn-CaC alloy. A constant ratio of Mg-Sn (93 wt.%, 2 wt.% Sn, and 5%wt. Ca2C) were mechanically mixed, with SiC added in varying proportions up to a maximum of 5 wt.%. The phase structure and microstructure were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM), XRD analysis identified solid solutions such as Mg₂Sn, Ca₂Sn, Si₂Mg₆Sn, and MgC phases. SEM analysis revealed a uniform distribution of Ca₂C and SiC within the Mg-Sn matrix. While density was determined using Archimedes' principle. Hardness and wear resistance were measured, where test specimens containing 3% SiC and 2% Ca₂C increased up to maximum then decreased.
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