Experimental Studies on the Effects of Tin on the Densification of W-Brass Composites

Abstract:

The effects of 1% tin (Sn) addition on the densification of pre-alloyed and pre-mixed W-brass composites were carried out. The green compacts were produced with the pressure of 350MPa and sintered at the temperature of 800°C, 920°C and 1000°C. The Sn addition is aimed at inhibiting the dezincification (selective removal of zinc from an alloy) of the brass component by the elimination of pores and enhances densification. The hardness of the composites increased with increase in temperature, the densification was low at both temperatures while the electrical conductivity remains constant as a result of constant composition in both pre-alloyed and pre-mixed composites. The microstructures revealed pores, which might be as a result of zinc evaporation.

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 838-843
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.838
• Online since: April 2015
• Authors: Baba Gowon, Kahtan S. Mohammed, Shamsul B. Jamaluddin, Zuhailawati Hussain, Aji D. Aminu, Yusuf A. Lawal
• Keywords: Brass, Densification, Hardness, Microstructure, W-Brass Composites

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