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Novel technique of processing functionally graded material in age-hardenable Al-alloys

Bakshi, S and Chattopadhyay, K and Kumar, S (2006) Novel technique of processing functionally graded material in age-hardenable Al-alloys. In: Transactions of the Indian Institute of Metals, 59 (1). pp. 73-84.

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In the present work, a new processing route for establishing functional property gradient in age-hardenable Al-alloy systems is devised and the feasibility of this process route is demonstrated. Two age-hardenable Al-alloys, namely, Al-5Zn-1Mg and Al-4.6Cu alloys are used as model alloy systems. The processing method involves producing a microstructural gradient in the initial homogeneous material without altering the composition of the bulk. Transmission electron microscopic studies at different layers of FGMs confirm the evolution of graded microstructure across the specimen cross-section. The established microstructural gradient in the material leads to a property gradient in terms of hardness and thereby yield strength for both the alloy systems, which is confirmed through hardness measurements.

Item Type: Journal Article
Publication: Transactions of the Indian Institute of Metals
Publisher: Indian Institute of Metals
Additional Information: Copyright of this article belongs to Indian Institute of Metals.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 31 May 2006
Last Modified: 27 Aug 2008 12:05
URI: http://eprints.iisc.ac.in/id/eprint/7178

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