The influence of aluminum and oxygen additions on intrinsic structural instabilities in titanium-molybdenum alloys

Zheng, Yufeng and Alam, Talukder and Banerjee, Rajarshi and Banerjee, Dipankar and Fraser, Hamish L (2018) The influence of aluminum and oxygen additions on intrinsic structural instabilities in titanium-molybdenum alloys. In: SCRIPTA MATERIALIA, 152 . pp. 150-153.

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Abstract

The influences of aluminum and oxygen additions on structural instabilities in the beta phase of binary Ti-Mo alloys have been investigated, using conventional and aberration-corrected scanning/transmission electron microscopy and atom-probe tomography. An addition of 5 wt% Al to the alloy Ti-18 wt% Mo tends to decrease the stability of the 2/3<111> longitudinal phonon, compared with that of the phase O' formed by the {110}<1<(1)over bar>0> transverse phonon. Experiments have been performed to assess whether interstitial oxygen influences these phase instabilities by adding yttrium to getter the matrix oxygen. It has been found that oxygen is not a necessary alloying addition to form the O' phase. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	SCRIPTA MATERIALIA
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Additional Information:	Copy right of 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)
Date Deposited:	02 Jul 2018 16:04
Last Modified:	02 Jul 2018 16:04
URI:	http://eprints.iisc.ac.in/id/eprint/60109

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