Abstract
This article compares the existing theoretical expressions for the porosity dependence on elastic constants to experimental data for a commercially available material, FC-0205 powder metallurgy (PM) steel. The modulus of compression, tension, effective torsion, and ultrasound-based data at varying porosity levels are plotted graphically against the theoretical expressions. An equation by McAdam (J. Iron Steel Inst. Lond., 1950, 168, p 346) was able to most accurately predict the experimental data with the adjustment of only one material constant.
References
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Acknowledgments
This research was funded by the U.S. Automotive Materials Partnership (AMD410) contract no. FC-26-02OR22910 with guidance from Howard I. Sanderow (Center for Powder Metallurgy Technology—CPMT), Russell A. Chernenkoff (Metaldyne), Paulo Rosa (DaimlerChrysler), Shekhar G. Wakade (GM Powertrain), and Glen Weber (Ford Motor Company). The authors would also like to thank the Center for Advanced Vehicular Systems at Mississippi State University for supporting this study. The authors gratefully acknowledge the permission granted to publish this research article by the director of the Geotechnical and Structures Laboratory.
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Allison, P.G., Horstemeyer, M.F. & Brown, H.R. Modulus Dependence on Large Scale Porosity of Powder Metallurgy Steel. J. of Materi Eng and Perform 21, 1422–1425 (2012). https://doi.org/10.1007/s11665-011-0001-6
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DOI: https://doi.org/10.1007/s11665-011-0001-6