The origins of microtexture in duplex Ti alloys

A previously developed methodology was used to transform electron backscatter diffraction (EBSD) data for the primary and secondary alpha phases of Ti–6Al–2Sn–4Zr–6Mo (Ti-6246) to the prior beta phase. The results established that the observed microtexture in duplex alloys is a direct result of the...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2009-07, Vol.513, p.325-328
Hauptverfasser: Glavicic, M.G., Bartha, B.B., Jha, S.K., Szczepanski, C.J.
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container_start_page 325
container_title Materials science & engineering. A, Structural materials : properties, microstructure and processing
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creator Glavicic, M.G.
Bartha, B.B.
Jha, S.K.
Szczepanski, C.J.
description A previously developed methodology was used to transform electron backscatter diffraction (EBSD) data for the primary and secondary alpha phases of Ti–6Al–2Sn–4Zr–6Mo (Ti-6246) to the prior beta phase. The results established that the observed microtexture in duplex alloys is a direct result of the prior beta grain orientations, and variant selection. In addition, for a homogeneous duplex microstructure, all of the secondary alpha phase and the majority of the primary alpha grains retain crystallographic coherency, according to the Burgers relationship, with the surrounding beta phase matrix, which comprise prior beta grains. This investigation establishes that this technique to recover the prior beta grain orientations is applicable to duplex α/β titanium microstructures. The crystallographic coherency of the primary and secondary alpha phase with the prior beta grain coupled with variant selection then leads to the localized microtexture observed in a wide variety of Ti alloys.
doi_str_mv 10.1016/j.msea.2009.02.003
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source Elsevier ScienceDirect Journals
subjects Burgers relationship
Cross-disciplinary physics: materials science
rheology
EBSD
Exact sciences and technology
Materials science
Other heat and thermomechanical treatments
Physics
Texture
Titanium
Treatment of materials and its effects on microstructure and properties
Variant selection
title The origins of microtexture in duplex Ti alloys
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