Ordering inα Titanium Alloys

A Radecka; V.A Vorontsov; J Coakley; K.M Rahman; P.A.J Bagot; T.L Martin; M.P Moody; I.P Jones; T.C Lindley; D Rugg; D Dye

doi:10.1002/9781119296126.ch166

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Ordering inα Titanium Alloys

A Radecka, V.A Vorontsov, J Coakley, K.M Rahman, P.A.J Bagot, T.L Martin, M.P Moody, I.P Jones, T.C Lindley, D Rugg, …

Proceedings of the 13th World Conference on Titanium, pp.971-978

John Wiley & Sons, Inc

2016-05-02

DOI: https://doi.org/10.1002/9781119296126.ch166

Abstract

Ti alloys

transmission electron microscopy (TEM)

atom probe tomography (APT)

ordering

Ti‐7Al, Ti‐6Al‐4V and IMI 834 alloys were heat treated at a range of temperatures between 500 and 700 o C for times up to 28 days. The formation of the ordered α2 (Ti3Al) phase within the α matrix was identified using electron diffraction, dark field transmission electron microscopy (TEM) and atom probe tomography (APT). It was found that the precipitation of the α2 phase is dependent upon on the addition of alloying elements such as V, Sn, Si, Zr to the Ti‐Al alloy. A comparison of the rate of α2 growth in binary Ti‐7Al, ternary Ti‐6Al‐4V and IMI 834 is presented. The investigation revealed that in multi‐component alloy systems where more than one alloying element forming the α2 phase is present, precipitation of ordered clusters is much faster than in the binary alloy.

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Title: Ordering inα Titanium Alloys
Creators: A Radecka - Dept. of Materials, Royal School of Mines, Imperial College London, Prince Consort Road, London, SW7 2BP, UK
V.A Vorontsov - Dept. of Materials, Royal School of Mines, Imperial College London, Prince Consort Road, London, SW7 2BP, UK
J Coakley - Dept. of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, IL, USA
K.M Rahman - Dept. of Materials, Royal School of Mines, Imperial College London, Prince Consort Road, London, SW7 2BP, UK
P.A.J Bagot - Dept. of Materials, University of Oxford, Oxford OX1 3PH, UK
T.L Martin - Dept. of Materials, University of Oxford, Oxford OX1 3PH, UK
M.P Moody - Dept. of Materials, University of Oxford, Oxford OX1 3PH, UK
I.P Jones - School of Metallurgy and Materials, University of Birmingham, Birmingham, B15 2TT, UK
T.C Lindley - Dept. of Materials, Royal School of Mines, Imperial College London, Prince Consort Road, London, SW7 2BP, UK
D Rugg - Rolls Royce, Elton Road, Derby, DE24 8BJ, UK
D Dye - Dept. of Materials, Royal School of Mines, Imperial College London, Prince Consort Road, London, SW7 2BP, UK
Contributors: Vasisht Venkatesh (Editor)
Adam L Pilchak (Editor)
John E Allison (Editor)
Sreeramamurthy Ankem (Editor)
Rodney Boyer (Editor)
Julie Christodoulou (Editor)
Hamish L Fraser (Editor)
M. Ashraf Imam (Editor)
Yoji Kosaka (Editor)
Henry J Rack (Editor)
Amit Chatterjee (Editor)
Andy Woodfield (Editor)
Publication Details: Proceedings of the 13th World Conference on Titanium, pp.971-978
Publisher: John Wiley & Sons, Inc; Hoboken, NJ, USA
Number of pages: 8
Academic Unit: College of Engineering; CoE - Mechanical & Aerospace Engineering
Language: English
Resource Type: Book chapter
Record Identifier: 991031600668402976