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Metal Foam by Powder Metallurgy Routes: A Review Paper
Abstract
The aim of study is to evaluate and optimize the process parameters and several control factors of foaming because of their physical and mechanical properties such as, high stiffness, high compressive strength, and good energy absorption. Powder metallurgy is a method in which aluminum and aluminum alloy are mixed with TiH2 or other blowing agents for foam making process. Powder mixed is consolidated to obtain a high dense foam compact precursor like hot extrusion or pressing. The precursor is heated above the melting point to obtain the foam. Due to presence of oxide contents in the aluminum powder it plays a significant role in the expansion and stability of foam in PM routes. Their applications are in wide range of structural and functional products due to their exceptional mechanical, thermal, acoustic, electric, and offer great potential for light weight. The cellular structure and pore size also depends on the process parameter, size of the particles, and relative density.
Keywords
References
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DOI: https://doi.org/10.37591/joprm.v6i1.7194
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