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Distribution of lead in lead-containing aluminium alloys obtained by liquid phase co-spray forming technique

Fuxiao, YU and Dwarakadasa, ES and Ranganathan, S (1999) Distribution of lead in lead-containing aluminium alloys obtained by liquid phase co-spray forming technique. In: Bulletin of Materials Science, 22 (6). pp. 959-963.

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Abstract

Liquid phase co-spray forming (LPCSF) technique was employed to produce AI-Pb and Al-Si-Pb alloys to show that it is possible, using this technique, to distribute lead into very fine-sized particles in Al/Al alloy matrix at low melt temperatures. Microstructural studies were carried out to explore the mechanisms governing lead distribution in the matrix of the alloys during processing. Results showed that, regardless of the alloy compositions and experimental conditions, the microstructures of the preforms exhibited great similarity, i.e. less uniform distribution of Pb particles in the base region, and uniform distribution of fine Pb particles in the equiaxed region. During LPCSF process, the behaviour of Pb droplets was similar to that of ceramic particles, except that the shape and size of liquid Pb phase varied corresponding to local solidification condition.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Keywords: Liquid phase co-spray forming;Microstructure;Aluminium lead alloys.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 01 Jun 2009 06:56
Last Modified: 19 Sep 2010 05:24
URI: http://eprints.iisc.ernet.in/id/eprint/18657

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