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A variant selection mechanism in the deformed and recrystallized matrix of a metastable -titanium alloy

Panda, Subrata and Banerjee, Dipankar and Avadhani, GS and Suwas, Satyam (2018) A variant selection mechanism in the deformed and recrystallized matrix of a metastable -titanium alloy. In: PHILOSOPHICAL MAGAZINE LETTERS, 98 (7). pp. 273-282.

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Official URL: https://doi.org/10.1080/09500839.2018.1531155

Abstract

The variant selection criteria during to phase transformations in a metastable -titanium alloy (Ti-5553) in the presence of deformation are examined. Two distinct metallurgical states in the matrix, heavily deformed and fully recrystallized, were obtained from a 90% cold-rolled alloy. The deformed and recrystallized samples were subjected to aging heat treatment for a short time to allow the precipitation of an intragranular phase. Electron backscattered diffraction was used to assess the crystallographic variant occurrence in the deformed as well as in the recrystallized grains. A discrete pole figure analysis revealed that a limited number of variants were evolved in the deformed grains while there was no variant selection in the recrystallized matrix. The results suggest that activation of {112}<111> slip systems determines a strong variant selection in the plastically deformed matrix.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to TAYLOR & FRANCIS LTD
Keywords: Metastable -titanium alloy; cold rolling; EBSD; variant selection; deformation
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Francis Jayakanth
Date Deposited: 24 Jan 2019 10:25
Last Modified: 25 Feb 2019 05:39
URI: http://eprints.iisc.ac.in/id/eprint/61413

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