Abstract
The aim of this research is to analyze the effect of SiC particle addition and heat treatment on the microstructure and mechanical and thermal properties of A356 aluminum alloy–based metal matrix composite. Aluminum alloy powder in the size range 25–50 µm and SiC particles of 1 µm average size in 0, 5, 10, 15, and 20 volume percentages were used as raw materials. Powders were blended in a ball mill and then sintered in vacuum hot press. The hot pressed composites were heat treated using T6 heat treatment. Microstructure analysis was carried out to assess the distribution of the SiC particles in the Al matrix. Hardness, tensile strength, compressive strength, and coefficient of thermal expansion (CTE) have been measured both on base alloy and composite materials, before and after the heat treatment. The result showed that addition of SiC particles improved the hardness, compressive strength, and decreased the CTE on both heat treated and as hot pressed samples. However, the tensile strength increased with increase in SiC particles in the range 5 to 15% and then decreased for composite with 20% of SiC particles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.