Texture of Hot-Compressed Metastable β-Titanium Alloy Ti5321 Studied by Neutron Diffraction
Bin Gu, Paul Chekhonin, Robert Chulist, Weimin Gan, Werner Skrotzki
TL;DR
This paper studies how the texture of a titanium alloy changes after hot compression using neutron diffraction.
Contribution
The study reveals how texture evolves in β- and α-phases of Ti5321 during hot compression above and below the β-transus temperature.
Findings
The β-phase shows a <100> fiber texture that intensifies with higher compression temperatures.
The α-phase develops a <11–20> fiber texture that becomes stronger at lower compression temperatures.
Dynamic recrystallization and spheroidization processes interact strongly below the β-transus temperature.
Abstract
The textures of the β- and α-phases of the metastable β-titanium alloy Ti5321 after hot deformation were investigated by neutron diffraction. A hot-rolled bar was solutionized in the β-phase field and then hot compressed above and below the β-transus temperature. The initial texture after full recrystallization and grain growth in the β-phase field exhibits a weak cube component {001}<100> and minor {112}<110> and {111}<110> components. After hot compression, a <100> fiber texture is observed, increasing in intensity with compression temperature. Below the β-transus temperature, dynamic recrystallization of the β-phase and dynamic spheroidization of the α-phase interact strongly. The texture of the α-phase is a <11–20> fiber texture, increasing in intensity with decreasing compression temperature. The mechanisms of texture formation during hot compression are discussed.
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Taxonomy
TopicsTitanium Alloys Microstructure and Properties · Intermetallics and Advanced Alloy Properties · Advanced materials and composites