Journal
INTERNATIONAL JOURNAL OF METALCASTING
Volume 17, Issue 2, Pages 1229-1242Publisher
SPRINGER INT PUBL AG
DOI: 10.1007/s40962-022-00837-2
Keywords
Al2024 composite foam; boron carbide particles; hardness; compression test; energy absorption capacity
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The applications of aluminum foams in the automobile and aerospace sector are growing due to their unique properties. In this study, Al2024-B4Cp composite foams were developed and the effect of different sized B4C particles and wt % on foam characteristics and performance was investigated.
The applications of aluminum foams in the automobile and aerospace sector are growing day by day because of their unique properties such as high specific strength, greater stiffness, and higher energy absorption capacity. In the current work, the Al2024-B4Cp composite foams were developed by the direct foaming method. The effect of different sized B4C particles (fine particles: Average Particle size (APS) 5 mu m and coarse particles: APS 45 mu m) and its wt % (2, 4, 6, and 8) on foam characteristics, hardness, quasi-static compressive response, and energy absorption capacity was investigated. Varying B4C particle size and wt % had a significant impact on foam parameters such as foam expansion, relative density, cell size, and cell wall thickness. Hardness increases with increasing wt % of particles and fine particles added foam showed higher hardness than that of coarse particles added foam. An increase in wt % of particles improves the peak stress, plateau stress, and energy absorption capacity. Coarse particles added foam showed superior compressive properties and energy absorption capacity than that of fine particles added foam.
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