Ordering in α titanium alloys

Anna Radecka; Vassili Vorontsov; James Coakley; Khandaker Mezanur Rahman; Paul A.J. Bagot; T. L. Martin; M P Moody; Ian Jones; Trevor Lindley; David Rugg; David Dye

doi:10.1002/9781119296126.ch166

Ordering in α titanium alloys

Anna Radecka, Vassili Vorontsov, James Coakley, Khandaker Mezanur Rahman, Paul A.J. Bagot, T. L. Martin, M P Moody, Ian Jones, Trevor Lindley, David Rugg, David Dye

Design, Manufacturing And Engineering Management

Research output: Contribution to conference › Proceeding › peer-review

Abstract

Ti-7Al, Ti-6Al-4V and IMI 834 alloys were heat treated at a range of temperatures between 500 and 700 oC 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.

Original language	English
Pages	971-978
Number of pages	8
DOIs	https://doi.org/10.1002/9781119296126.ch166
Publication status	Published - 2 May 2016
Event	Ti-2015: The 13th World Conference on Titanium - California, San Diego, United States Duration: 16 Aug 2015 → 20 Aug 2015

Conference

Conference	Ti-2015: The 13th World Conference on Titanium
Country/Territory	United States
City	San Diego
Period	16/08/15 → 20/08/15

Keywords

IMI 834 alloys
Ti alloys
ordering
atom probe tomography (APT)
transmission electron microscopy (TEM)

Access to Document

10.1002/9781119296126.ch166

Cite this

@conference{a319389c652e4f41968fabbc97640186,

title = "Ordering in α titanium alloys",

abstract = "Ti-7Al, Ti-6Al-4V and IMI 834 alloys were heat treated at a range of temperatures between 500 and 700 oC 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.",

keywords = "IMI 834 alloys, Ti alloys, ordering, atom probe tomography (APT), transmission electron microscopy (TEM)",

author = "Anna Radecka and Vassili Vorontsov and James Coakley and Rahman, {Khandaker Mezanur} and Bagot, {Paul A.J.} and Martin, {T. L.} and Moody, {M P} and Ian Jones and Trevor Lindley and David Rugg and David Dye",

note = "Online ISBN: 9781119296126 Print ISBN: 9781119293668; Ti-2015: The 13th World Conference on Titanium ; Conference date: 16-08-2015 Through 20-08-2015",

year = "2016",

month = may,

day = "2",

doi = "10.1002/9781119296126.ch166",

language = "English",

pages = "971--978",

}

TY - CONF

T1 - Ordering in α titanium alloys

AU - Radecka, Anna

AU - Vorontsov, Vassili

AU - Coakley, James

AU - Rahman, Khandaker Mezanur

AU - Bagot, Paul A.J.

AU - Martin, T. L.

AU - Moody, M P

AU - Jones, Ian

AU - Lindley, Trevor

AU - Rugg, David

AU - Dye, David

N1 - Online ISBN: 9781119296126 Print ISBN: 9781119293668

PY - 2016/5/2

Y1 - 2016/5/2

N2 - Ti-7Al, Ti-6Al-4V and IMI 834 alloys were heat treated at a range of temperatures between 500 and 700 oC 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.

AB - Ti-7Al, Ti-6Al-4V and IMI 834 alloys were heat treated at a range of temperatures between 500 and 700 oC 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.

KW - IMI 834 alloys

KW - Ti alloys

KW - ordering

KW - atom probe tomography (APT)

KW - transmission electron microscopy (TEM)

U2 - 10.1002/9781119296126.ch166

DO - 10.1002/9781119296126.ch166

M3 - Proceeding

SP - 971

EP - 978

T2 - Ti-2015: The 13th World Conference on Titanium

Y2 - 16 August 2015 through 20 August 2015

ER -

Ordering in α titanium alloys

Abstract

Conference

Keywords

Access to Document

Fingerprint

Cite this