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Hot working of an as-Cast Mg-2%Al alloy

Kottada, Ravi S and Chokshi, Atul H (2003) Hot working of an as-Cast Mg-2%Al alloy. In: 4th International Conference on Processing and Manufacturing of Advanced Materials, JUL 07-11, 2003, Univ Carlos III Madrid, Madrid, Spain, pp. 4417-4422.

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Abstract

Magnesium based alloys are being considered currently as replacements for aluminum alloy components in automobile industry, due to their high specific strength as compared to aluminum alloys. However, the utilization of Mg alloys is restricted due to their poor formability, and consequently these have been used mostly in the as cast condition. In order to increase the utilization of the wrought forms, it is necessary to develop optimum deformation processing conditions for producing defect free wrought products economically from the cast alloys. In the present study, the compressive deformation characteristics of as cast Mg-2wt% Al alloy with an equiaxed initial grain size of 150 +/- 10 mum have been studied in the temperature range of 573-723 K and at strain rates ranging from 10(-2) to 10 s(-1). The results are analyzed in terms of the existing theoretical hot working models together with the microstructural characteristics of the alloy. Furthermore, optimum. conditions for subsequent deformation processing have been identified based on a combination of mechanical data together with the deformed microstructures.

Item Type: Conference Poster
Additional Information: Copyright of this article belongs to Trans Tech Publications Ltd.
Keywords: magnesium alloys;hot working;processing and microstructure.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 21 Aug 2009 06:01
Last Modified: 21 Aug 2009 06:01
URI: http://eprints.iisc.ernet.in/id/eprint/17598

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