Investigation of the mechanical properties of stainless steel foams manufactured through leachable spherical urea granules as a space holder

Document Type : Original Article

Authors

Technical and Engineering Faculty, Department of Mechanical Engineering, Qochan University of Technology

Abstract

Foam materials are a family of new and advanced materials that due to their unique characteristics, will have a lot of potential for development in the coming years. The current research deals with the production of metal foams made of 316L stainless steel, which has a relatively wide application in the medical industry (especially in the production of implants). For this purpose, the methods of powder metallurgy and dissolving spherical urea particles in water has been used as a spacer have been employed. Porosity measurement, cell wall evaluation by scanning electron microscope and pressure test on steel specimens have been investigated. The effect of porosity and applied pressure during the production of the foams on their mechanical behavior have been studied. In addition to conducting experimental tests, the compressive test was simulated using an explicit finite element model for a steel foam with 30 percent of porosity. The results indicate that the failure mechanism of both experimental and simulated specimens occur approximately similar.

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