Electron Microscopy Study of Deformation Microstructure in Metastable β Titanium Alloy

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The deformation microstructure of a metastable beta-Ti alloy with chemical composition of Ti-23Nb-0.7Ta-2Zr-1.2O at.% after cold swaging has been studied by electron backscattering diffraction and high-resolution transmission electron microscope. The results showed that the deformation structure of the cold-swaged alloy appears to be similar to the swirled structure that commonly found in bcc metals heavily deformed either by wire-drawing or by rotary swaging process, and <110> fiber texture is a typical texture component of bcc metals. HRTEM results further showed <111> dislocations in the deformed alloy. Additionally, {112}<111> mechanical twinning and stress-induced omega transition were further revealed.

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Main Theme:

Edited by:

Jian-Feng Nie and Allan Morton

Pages:

867-870

DOI:

10.4028/www.scientific.net/MSF.654-656.867

Citation:

H. Xing and J. Sun, "Electron Microscopy Study of Deformation Microstructure in Metastable β Titanium Alloy", Materials Science Forum, Vols. 654-656, pp. 867-870, 2010

Online since:

June 2010

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$35.00

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