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Unique texture transition during sub beta-transus annealing of warm-rolled Ti-6Al-4V alloy: Role of orientation dependent spheroidization

Roy, Shibayan and Suwas, Satyam (2018) Unique texture transition during sub beta-transus annealing of warm-rolled Ti-6Al-4V alloy: Role of orientation dependent spheroidization. In: SCRIPTA MATERIALIA, 154 . pp. 1-7.

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Official URL: http://dx.doi.org/10.1016/j.scriptamat.2018.05.005

Abstract

We report here, interrelation between orientation dependent spheroidization 1] and bulk texture evolution during static annealing of warm-rolled Ti-6Al-4V alloy. Weakening of basal fibre (ND parallel to < 0001 >) and complementary strengthening of prism fibre (RD parallel to < 10 (1) over bar0 >) occur on annealing, which is unique and contrary to previous reports. Texture transition is conjugated with two counteracting processes, both being alpha-colony orientation dependent: spheroidization of alpha(P)-phase increasing spread of the fibres, and variant selection during alpha(P) -> beta -> alpha(s) transformation strengthening only the prism fibre. Basal fibre weakens from orientation dependent spheroidization on annealing, while prism fibre intensity is maintained or increased from alpha(s) selection depending on annealing durations. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belong to PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 28 Aug 2018 15:18
Last Modified: 28 Aug 2018 15:18
URI: http://eprints.iisc.ac.in/id/eprint/60510

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