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An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb

Robert Lancaster Orcid Logo, Will Harrison Orcid Logo, G. Norton

Materials Science and Engineering: A, Volume: 626, Pages: 263 - 274

Swansea University Authors: Robert Lancaster Orcid Logo, Will Harrison Orcid Logo

Abstract

Previous literature on gamma titanium alumindes (γ-TiAl) have found that this family of alloys offer significant potential for replacing more conventional nickel and titanium based alloy systems in future designs of gas turbine engines. Despite the inherent brittle nature of such materials, γ-TiAl t...

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Published in: Materials Science and Engineering: A
ISSN: 0921-5093
Published: 2015
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URI: https://cronfa.swan.ac.uk/Record/cronfa20140
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spelling 2023-01-30T14:50:12.1945658 v2 20140 2015-02-09 An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false dae59f76fa4f63123aa028abfcd2b07a 0000-0002-0380-7075 Will Harrison Will Harrison true false 2015-02-09 MTLS Previous literature on gamma titanium alumindes (γ-TiAl) have found that this family of alloys offer significant potential for replacing more conventional nickel and titanium based alloy systems in future designs of gas turbine engines. Despite the inherent brittle nature of such materials, γ-TiAl typically exhibits considerable ductility at elevated temperatures and a demonstrable uniaxial creep response. Until now, the creep properties of γ-TiAl have primarily been sourced from conventional uniaxial approaches, which require significant material quantities in order to perform a full stress–temperature–life assessment. This is not always possible for new alloys where sufficient quantities of material are unavailable. The small punch (SP) creep test represents an attractive alternative to uniaxial creep testing since the volume of material required is much less. However, much of the current literature on SP testing is limited to the application of traditionally ductile materials. This paper assesses the suitability of the SP method to characterise the creep properties of γ-TiAl alloys. Finite element modelling has been used to characterise the SP deformation and rupture behaviour. Journal Article Materials Science and Engineering: A 626 263 274 0921-5093 25 2 2015 2015-02-25 10.1016/j.msea.2014.12.045 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2023-01-30T14:50:12.1945658 2015-02-09T10:02:59.0938633 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Robert Lancaster 0000-0002-1365-6944 1 Will Harrison 0000-0002-0380-7075 2 G. Norton 3 0020140-10092015153902.pdf TiAl.pdf 2015-09-10T15:39:02.6200000 Output 1690785 application/pdf Accepted Manuscript true 2015-09-10T00:00:00.0000000 false
title An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
spellingShingle An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
Robert Lancaster
Will Harrison
title_short An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
title_full An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
title_fullStr An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
title_full_unstemmed An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
title_sort An analysis of small punch creep behaviour in the γ titanium aluminide Ti–45Al–2Mn–2Nb
author_id_str_mv e1a1b126acd3e4ff734691ec34967f29
dae59f76fa4f63123aa028abfcd2b07a
author_id_fullname_str_mv e1a1b126acd3e4ff734691ec34967f29_***_Robert Lancaster
dae59f76fa4f63123aa028abfcd2b07a_***_Will Harrison
author Robert Lancaster
Will Harrison
author2 Robert Lancaster
Will Harrison
G. Norton
format Journal article
container_title Materials Science and Engineering: A
container_volume 626
container_start_page 263
publishDate 2015
institution Swansea University
issn 0921-5093
doi_str_mv 10.1016/j.msea.2014.12.045
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
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description Previous literature on gamma titanium alumindes (γ-TiAl) have found that this family of alloys offer significant potential for replacing more conventional nickel and titanium based alloy systems in future designs of gas turbine engines. Despite the inherent brittle nature of such materials, γ-TiAl typically exhibits considerable ductility at elevated temperatures and a demonstrable uniaxial creep response. Until now, the creep properties of γ-TiAl have primarily been sourced from conventional uniaxial approaches, which require significant material quantities in order to perform a full stress–temperature–life assessment. This is not always possible for new alloys where sufficient quantities of material are unavailable. The small punch (SP) creep test represents an attractive alternative to uniaxial creep testing since the volume of material required is much less. However, much of the current literature on SP testing is limited to the application of traditionally ductile materials. This paper assesses the suitability of the SP method to characterise the creep properties of γ-TiAl alloys. Finite element modelling has been used to characterise the SP deformation and rupture behaviour.
published_date 2015-02-25T03:23:45Z
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