Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products

The ß-annealing of Titanium-6Al-4V (Ti64) wrought aerospace components can lead to the development of abnormal grain structures (AGS) that jeopardise material performance. Therefore, an in-depth understanding into the origins of AGS will help in the design of processing routes that can avoid the con...

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Main Authors: Byres Nicholas E., Quinta da Fonseca João, Dod Benjamin, Donoghue Jack, Davis Alec, Prangnell Phillip B.
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12043.pdf
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author Byres Nicholas E.
Quinta da Fonseca João
Dod Benjamin
Donoghue Jack
Davis Alec
Prangnell Phillip B.
author_facet Byres Nicholas E.
Quinta da Fonseca João
Dod Benjamin
Donoghue Jack
Davis Alec
Prangnell Phillip B.
author_sort Byres Nicholas E.
collection DOAJ
description The ß-annealing of Titanium-6Al-4V (Ti64) wrought aerospace components can lead to the development of abnormal grain structures (AGS) that jeopardise material performance. Therefore, an in-depth understanding into the origins of AGS will help in the design of processing routes that can avoid the conditions that lead to their development. This research demonstrates the application of novel concurrent in-situ heating and electron back scatter diffraction (EBSD) techniques to help elucidate possible mechanisms for the development of AGS. It was found that primary-a (ap) may play a key role, acting as a second phase particle, in pinning the ß-phase grain boundaries during recrystallisation. The strengthening of a large area cube component texture macrozone, consisting of predominantly low angle grain boundaries, is also a prerequisite for the development of AGS.
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spelling doaj.art-3c07661c7da247799773d5c8e9c49f682022-12-21T18:33:03ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013211204310.1051/matecconf/202032112043matecconf_ti2019_12043Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought ProductsByres Nicholas E.0Quinta da Fonseca João1Dod Benjamin2Donoghue Jack3Davis AlecPrangnell Phillip B.4MSS Tower, University of ManchesterMSS Tower, University of ManchesterAirbus Operations SASMSS Tower, University of ManchesterMSS Tower, University of ManchesterThe ß-annealing of Titanium-6Al-4V (Ti64) wrought aerospace components can lead to the development of abnormal grain structures (AGS) that jeopardise material performance. Therefore, an in-depth understanding into the origins of AGS will help in the design of processing routes that can avoid the conditions that lead to their development. This research demonstrates the application of novel concurrent in-situ heating and electron back scatter diffraction (EBSD) techniques to help elucidate possible mechanisms for the development of AGS. It was found that primary-a (ap) may play a key role, acting as a second phase particle, in pinning the ß-phase grain boundaries during recrystallisation. The strengthening of a large area cube component texture macrozone, consisting of predominantly low angle grain boundaries, is also a prerequisite for the development of AGS.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12043.pdf
spellingShingle Byres Nicholas E.
Quinta da Fonseca João
Dod Benjamin
Donoghue Jack
Davis Alec
Prangnell Phillip B.
Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
MATEC Web of Conferences
title Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
title_full Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
title_fullStr Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
title_full_unstemmed Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
title_short Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
title_sort analysis of the development of abnormal grains structures during beta annealing of ti 64 wrought products
url https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12043.pdf
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