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The Effect of Aluminium on Deformation and Twinning in Alpha Titanium: The 45° Case / Arnas Fitzner, D.G. Leo Prakash, J. Quinta da Fonseca, M. Preuss, Matthew J. Thomas, Shu Yan Zhang, Joe Kelleher, Leo Prakash

Materials Science Forum, Volume: 765, Pages: 549 - 553

Swansea University Author: Leo Prakash

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DOI (Published version): 10.4028/www.scientific.net/MSF.765.549

Abstract

The deformation behaviour of binary Ti-Al model alloys has been observed in respect to nucleation, propagation and growth of twins, specifically the interaction of slip and {1 0 -1 2} tensile twins. The area fraction of twins increases by trend from Ti-0Al to Ti-4Al but significantly reduces to Ti-6...

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Published in: Materials Science Forum
Published: 2013
URI: https://cronfa.swan.ac.uk/Record/cronfa17656
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Abstract: The deformation behaviour of binary Ti-Al model alloys has been observed in respect to nucleation, propagation and growth of twins, specifically the interaction of slip and {1 0 -1 2} tensile twins. The area fraction of twins increases by trend from Ti-0Al to Ti-4Al but significantly reduces to Ti-6Al. The lattice strain evolution during compression was measured using in-situ neutron diffraction and decreases from Ti-0Al to Ti-4Al but increases to Ti-6Al. The twin activity in hcp Ti behaves as expected from fcc materials until 4 wt.% Al concentration, but it is believed that short or long range ordering reduces the twin activity in Ti-6Al.
Keywords: Deformation Twinning, Neutron Diffraction, Ti-Al Binary Alloys
College: College of Engineering
Start Page: 549
End Page: 553