Microstructural Characteristics of Sintered Powder Metallurgy Alloys.
Keywords:
powder metallurgy, porosity, sintering, microstructure
Abstract
The purpose of this paper is to study the influence of processing parameters on the microstructural characteristics of sintered powder metallurgy alloys. The specimens were produced from atomised iron powders with different sizes (<45, 45- 63, 3-100, 100-150, >150 μm). They were compacted at pressures of 600 MPa and sintered for 30 minutes and 120 minutes at 1150 ºC, respectively. The porosity of the sintered samples was analyzed according to their microstructural characteristics and chemical composition.
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References
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[2]. C. Lindberg, Sintered high strength materials, Advances in P/M & Particulate Materials, vol. 5, p 107-114, 1992.
[3]. F. Chagnon, C. Gelinas, Y. Trudel, Development of high density materials for P/M applications, Advances in P/M & Particulate Materials, vol. 3, p. 199-206, 2004.
[4]. R. Haynes, Astudy of effect of porosity content on ductility of sintered metals, Powder Metall, vol. 20, p. 17-20, 1977.
[5]. R. Bourcier, D. Koss, R. Smelser, O. Richmond, The influence of porosity on the fracture of alloys, Acta Metall, vol. 34, p. 2443-53, 1983.
[6]. X. Deng, G. Piotrowski, N. Chawla, K. Narasimhan, Effect of pore clustering on the mechanical behavior of powder metallurgy (P/M) steels, P/M Sci Technol Briefs, vol. 6, p. 5-10, 2004.
[7]. K. Christian, R. German, Relation between pore structure and fatigue behavior in sintered iron-copper-carbon, Int J Powder Metall, vol. 31, p. 51-61, 1995.
[8]. T. M. Cimino, A. H. Graham, T. F. Murphy, The effect of microstructure and pore morphology on mechanical and dynamic properties of ferrous P/M materials, Advances in P/M & Particulate Materials, vol. 3, p 13-33/13-43, 1998.
[9]. B. Lindqvist, Influence of microstructure and porosity on fatigue properties of sintered steels, Metal Powder Report, vol. 44, p. 443-448, 1989.
[10]. W. D. Angela, L. Tellez, J. F. Alcala, E. Martinez, V. F. Cedeno, Effect of copper on the mechanical properties of alloys formed by powder metallurgy, Materials and Design, vol. 58, p. 12-18, 2014.
[11]. F. Chagnon, Y. Trudel, Effect of density on mechanical properties of sinter-hardened materials, Advances in P/M & Particulate Materials, vol. 3, p 12-119/12-125, 1988.
[12]. H. Gonobadi, Physical and mechanical characteristics of heat treated PM parts, infiltrated by copper, Life Sci J, vol. 10, p. 86-91, 2013.
[13]. F. Chagnon, Y. Trudel, Effect of sintering parameters on mechanical properties of sinter hardened materials, Advances in P/M & Particulate Materials, NJ, vol. 2, p 14-97/14-106, 1997.
[14]. R. J. Causton, J. A. Hamil, S. O. Shah, Properties of heat treated P/M alloy steels, Advances in P/M & Particulate Materials, vol. 4, p 61-96, 1993.
[15]. A. Piotrowski, G. Biallas, Influence of sintering temperature on pore morphology, Microstructure and Fatigue Behavior of MoNi-Cu Alloyed Sintered Steel, Powder Metallurgy, vol. 41, no. 2, p. 109-114, 1998.
[16]. Z. Brytan, L. A. Dobrzański, M. Grande, M. Rosso, The influence of sintering time on the properties of PM duplex stainless steel, JAIMME, vol. 37, p. 387-396, 2009.
Published
2014-12-15
How to Cite
1.
MARIN M, POTECAŞU F, POTECAŞU O. Microstructural Characteristics of Sintered Powder Metallurgy Alloys. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Dec.2014 [cited 22Dec.2024];37(4):45-9. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/2226
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