Investigation of mechanical properties of heat-treated A356/SiC composite fabricated through stir casting technique. (2022)

• Record Type: Journal Article
• Authors: Rawat, Ankit; Kumar, Ankit; Agrawal, Anant Prakash
• Is Part Of: Materials today. Volume 62:Part 1(2022)
• Page Start: 203
• Page End: 208
• Publication Date: 2022
• Subjects: A356 -- MMC -- Stir casting process -- Mechanical properties -- Heat treatment; MMCs Metal matrix composites -- SiC Silicon carbide; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.02.618
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In this paper, a study has been carried out to outline the impact of heat treatment of MMCs, on its microstructure, tensile properties, hardness, and the impact behaviour of A356/SiC cast MMCs. Mechanical stir casting techniques were used to fabricate MMC ingots in which SiC particles were mixed in the molten aluminum alloy by varying wt.% of 2, 4, and 6. The heat-treated aluminum-based MMCs were characterized by optical microscope, tensile strength, Brinell hardness, and impact strength experiments. The experimental results of the A356/SiC composite shows that the addition of SiC ceramic particles leads to a notable enhancement in the hardness, tensile, and impact strength compared to the base alloy. The heat treatment developed a great bonding between ceramic reinforcement and reduces the developed internal stresses in metal matrix aluminum alloy, which leads to 15.58% higher tensile strength and 10.25% impact strength, whereas reducing 6.5% hardness.