The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy

Prakash, D.G. Leo; Honniball, P; Rugg, D; Withers, P.J; da, J. Quinta; Preuss, M; Prakash, Leo

doi:10.1016/j.actamat.2013.02.008

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The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy

D.G. Leo Prakash, P Honniball, D Rugg, P.J Withers, J. Quinta da Fonseca, M Preuss, Leo Prakash

Acta Materialia, Volume: 61, Issue: 9, Pages: 3200 - 3213

Swansea University Author: Leo Prakash

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DOI (Published version): 10.1016/j.actamat.2013.02.008

Abstract

Microstructure and texture evolution have been investigated in both α and β phases during the hot rolling of β-quenched Ti–6Al–4V at 800 and 950 °C, followed by annealing at 950 °C and air cooling using detailed electron backscattered diffraction mapping. The textures of primary and secondary α in t...

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Published in:	Acta Materialia
ISSN:	1359-6454
Published:	2013
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa15811

first_indexed	2013-09-26T11:45:10Z
last_indexed	2018-02-09T04:47:56Z
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spelling	2015-11-02T14:18:53.6728743 v2 15811 2013-09-09 The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy bd72868c48af6c0b04bf9f6bb48ce324 0000-0002-8812-8927 Leo Prakash Leo Prakash true false 2013-09-09 EAAS Microstructure and texture evolution have been investigated in both α and β phases during the hot rolling of β-quenched Ti–6Al–4V at 800 and 950 °C, followed by annealing at 950 °C and air cooling using detailed electron backscattered diffraction mapping. The textures of primary and secondary α in the bi-modal microstructure were analysed separately, and the high-temperature β orientations were calculated by a variant based reconstruction from the inherited αs orientations. Crystal plasticity finite element modelling has been employed to predict the rolling texture based on common α phase slip systems and compare with the measured α texture. It was found that despite the severe deformation during rolling, a large proportion of the primary α grains retain a Burgers relationship with the β phase. Consequently, the β phase in combination with a variant selection mechanism seems to control the α texture, which explains the discrepancy between predicted and measured rolling textures. The consequence of this mechanism for macrozone formation is also discussed. Journal Article Acta Materialia 61 9 3200 3213 1359-6454 Titanium alloys; Thermomechanical processing; Texture; Macrozones; Electron backscattered diffraction (EBSD) 12 5 2013 2013-05-12 10.1016/j.actamat.2013.02.008 http://www.sciencedirect.com/science/article/pii/S1359645413001262 This research is published in, the No.1 ranked journal in Metallurgy , Acta Materialia (5 year Impact factor: 4.395). For the first time, this clearly point out the critical role of high temperature beta phase on the development of different alpha phase texture and macrozones during thermomechanical processing of a technologically important metallic material (Ti-6Al-4V). These research findings are of particular practical consequences to Titanium and Aerospace industry as it demonstrates that certain hot rolling procedures might be applied to tailor texture. The importance of this publication is recognized by the UK industries, Timet (Matthew.Thomas@Timet.com) and Rolls-Royce (David.Rugg@rolls-royce.com). COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2015-11-02T14:18:53.6728743 2013-09-09T11:07:30.9174127 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering D.G. Leo Prakash 1 P Honniball 2 D Rugg 3 P.J Withers 4 J. Quinta da Fonseca 5 M Preuss 6 Leo Prakash 0000-0002-8812-8927 7
title	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy
spellingShingle	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy Leo Prakash
title_short	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy
title_full	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy
title_fullStr	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy
title_full_unstemmed	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy
title_sort	The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy
author_id_str_mv	bd72868c48af6c0b04bf9f6bb48ce324
author_id_fullname_str_mv	bd72868c48af6c0b04bf9f6bb48ce324_***_Leo Prakash
author	Leo Prakash
author2	D.G. Leo Prakash P Honniball D Rugg P.J Withers J. Quinta da Fonseca M Preuss Leo Prakash
format	Journal article
container_title	Acta Materialia
container_volume	61
container_issue	9
container_start_page	3200
publishDate	2013
institution	Swansea University
issn	1359-6454
doi_str_mv	10.1016/j.actamat.2013.02.008
college_str	Faculty of Science and Engineering
hierarchytype
hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
url	http://www.sciencedirect.com/science/article/pii/S1359645413001262
document_store_str	0
active_str	0
description	Microstructure and texture evolution have been investigated in both α and β phases during the hot rolling of β-quenched Ti–6Al–4V at 800 and 950 °C, followed by annealing at 950 °C and air cooling using detailed electron backscattered diffraction mapping. The textures of primary and secondary α in the bi-modal microstructure were analysed separately, and the high-temperature β orientations were calculated by a variant based reconstruction from the inherited αs orientations. Crystal plasticity finite element modelling has been employed to predict the rolling texture based on common α phase slip systems and compare with the measured α texture. It was found that despite the severe deformation during rolling, a large proportion of the primary α grains retain a Burgers relationship with the β phase. Consequently, the β phase in combination with a variant selection mechanism seems to control the α texture, which explains the discrepancy between predicted and measured rolling textures. The consequence of this mechanism for macrozone formation is also discussed.
published_date	2013-05-12T00:37:06Z
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score	11.064692

The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy

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