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

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Tytuł:: Analysis of the Development of Abnormal Grains Structures During Beta Annealing of Ti-64 Wrought Products
Autorzy:: Byres Nicholas E.
Quinta da Fonseca João
Dod Benjamin
Donoghue Jack
Davis Alec
Prangnell Phillip B.
Temat:: Engineering (General). Civil engineering (General)
TA1-2040
Źródło:: MATEC Web of Conferences, Vol 321, p 12043 (2020)
Wydawca:: EDP Sciences, 2020.
Rok publikacji:: 2020
Kolekcja:: LCC:Engineering (General). Civil engineering (General)
Typ dokumentu:: article
Opis pliku:: electronic resource
Język:: English
French
ISSN:: 2261-236X
Relacje:: https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12043.pdf; https://doaj.org/toc/2261-236X
DOI:: 10.1051/matecconf/202032112043
Dostęp URL:: https://doaj.org/article/3c07661c7da247799773d5c8e9c49f68 Link otwiera się w nowym oknie
Numer akcesji:: edsdoj.3c07661c7da247799773d5c8e9c49f68
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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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