Magnesium matrix reinforced with zirconium, garnet and graphite for improved mechanical properties.

Autor: Khan, Muhammed Anaz, Bhanuprakash, Lokasani, Anand, A. Vivek
Předmět:
Zdroj: AIP Conference Proceedings; 2023, Vol. 2492 Issue 1, p1-7, 7p
Abstrakt: Being the lightest metal constructional material, magnesium matrix composites are widely used in oceanic, structural, aerospace, and automobile applications for its lightweight, low density, better mechanical properties and resistance to corrosion. These composites incorporate attractive attributes of hard ceramics to the substrate material. In this study, magnesium based matrix is reinforced with Zirconium, Garnet and Graphite particulates. The reinforcement particles are blended with magnesium using stir casting process to ensure uniform particulate distribution across the matrix. The microstructure of the prepared composites was studied and hardness across the bulk is reported. It was observed that the bulk hardness increased with the garnet and graphite addition. Optimized parameters aid in uniform distribution of particulate reinforcement within the matrix pool. As-cast samples exhibited good bonding of reinforcement at the metal matrix-reinforcement interface. Agglomeration of garnet particle was observed to be minimal for 0.3 wt%, and increases with higher percentage. It is also observed that the porosity of the composites decreased with the increase in reinforcement weight percentage. The composite reinforced with 0.9 wt% of garnet and graphite exhibited and increased hardness of 70.2 HV0.1 compared to the 41 HV0.1 hardness exhibited by composite reinforced with 0.3 wt% of reinforcements. tensile properties. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index