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Structure-property correlation in dual-phase copper-tin alloys

Prasad, Ramesh GK and Chattopadhyay, K and Rao, Mohan M (1986) Structure-property correlation in dual-phase copper-tin alloys. In: Journal of Materials Science Letters, 5 (10). pp. 991-994.

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The understanding of structure-property correlation of two-phase structures has led to the development of dual-phase steels having high strength combined with adequate ductility [1, 2]. The production of controlled two-phase structures has been achieved by holding the iron-carbon alloys of different compositions in the austenite-plus-ferrite phase field until equilibrium is achieved and, subsequently, quenching to transform the austenite to martensite. The martensite imparts high strength to the alloys whereas the ferrite phase ensures reasonable ductility. The possibility exists to extend this elegant alloy design principle to other systems. The application to bronzes (Cu A1, Cu-Sn) is particularly attractive where most of the conventional alloy compositions are confined to the singlephase (alpha) field. The \beta-phase in these systems is stable at high temperatures and undergoes martensitic transformation on quenching. Thus suitably chosen compositions held in the two-phase (\alpha + \beta)field on quenching give rise to dual-phase microstructures, and high strength can be achieved. Hussein [3, 4] studied the structure-property correlations in dualphase binary Cu-A1 alloys. We report here the results of our investigations on binary Cu-Sn alloys using hardness measurements as the chief tool for estimation of mechanical properties.

Item Type: Journal Article
Publication: Journal of Materials Science Letters
Publisher: Springer Netherlands
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 22 Apr 2008
Last Modified: 19 Sep 2010 04:44
URI: http://eprints.iisc.ac.in/id/eprint/13539

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