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Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques

Robert Lancaster Orcid Logo, Spencer Jeffs Orcid Logo

Materials Science and Engineering: A, Volume: 636, Pages: 529 - 535

Swansea University Authors: Robert Lancaster Orcid Logo, Spencer Jeffs Orcid Logo

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DOI (Published version): 10.1016/j.msea.2015.03.119

Abstract

In recent years, advances in creep data interpretation have been achieved either by modified Monkman–Grant relationships or through the more contemporary Wilshire equations, which offer the opportunity of predicting long term behaviour extrapolated from short term results. Long term lifing technique...

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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/cronfa20923
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first_indexed 2015-04-30T02:04:10Z
last_indexed 2021-01-08T03:35:30Z
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spelling 2021-01-07T14:05:59.6076858 v2 20923 2015-04-29 Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false 6ff76d567df079d8bf299990849c3d8f 0000-0002-2819-9651 Spencer Jeffs Spencer Jeffs true false 2015-04-29 MTLS In recent years, advances in creep data interpretation have been achieved either by modified Monkman–Grant relationships or through the more contemporary Wilshire equations, which offer the opportunity of predicting long term behaviour extrapolated from short term results. Long term lifing techniques prove extremely useful in creep dominated applications, such as in the power generation industry and in particular nuclear where large static loads are applied, equally a reduction in lead time for new alloy implementation within the industry is critical. The latter requirement brings about the utilisation of the small punch (SP) creep test, a widely recognised approach for obtaining useful mechanical property information from limited material volumes, as is typically the case with novel alloy development and for any in-situ mechanical testing that may be required. The ability to correlate SP creep results with uniaxial data is vital when considering the benefits of the technique. As such an equation has been developed, known as the kSP method, which has been proven to be an effective tool across several material systems. The current work now explores the application of the aforementioned empirical approaches to correlate small punch creep data obtained on a single crystal superalloy over a range of elevated temperatures. Finite element modelling through ABAQUS software based on the uniaxial creep data has also been implemented to characterise the SP deformation and help corroborate the experimental results. Journal Article Materials Science and Engineering: A 636 529 535 0921-5093 11 6 2015 2015-06-11 10.1016/j.msea.2015.03.119 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2021-01-07T14:05:59.6076858 2015-04-29T08:32:56.6258375 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Robert Lancaster 0000-0002-1365-6944 1 Spencer Jeffs 0000-0002-2819-9651 2 0020923-22122017104552.pdf 20923.pdf 2017-12-22T10:45:52.5230000 Output 1076932 application/pdf Accepted Manuscript true 2015-09-21T00:00:00.0000000 false eng
title Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
spellingShingle Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
Robert Lancaster
Spencer Jeffs
title_short Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
title_full Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
title_fullStr Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
title_full_unstemmed Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
title_sort Creep lifing methodologies applied to a single crystal superalloy by use of small scale test techniques
author_id_str_mv e1a1b126acd3e4ff734691ec34967f29
6ff76d567df079d8bf299990849c3d8f
author_id_fullname_str_mv e1a1b126acd3e4ff734691ec34967f29_***_Robert Lancaster
6ff76d567df079d8bf299990849c3d8f_***_Spencer Jeffs
author Robert Lancaster
Spencer Jeffs
author2 Robert Lancaster
Spencer Jeffs
format Journal article
container_title Materials Science and Engineering: A
container_volume 636
container_start_page 529
publishDate 2015
institution Swansea University
issn 0921-5093
doi_str_mv 10.1016/j.msea.2015.03.119
college_str Faculty of Science and Engineering
hierarchytype
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
active_str 0
description In recent years, advances in creep data interpretation have been achieved either by modified Monkman–Grant relationships or through the more contemporary Wilshire equations, which offer the opportunity of predicting long term behaviour extrapolated from short term results. Long term lifing techniques prove extremely useful in creep dominated applications, such as in the power generation industry and in particular nuclear where large static loads are applied, equally a reduction in lead time for new alloy implementation within the industry is critical. The latter requirement brings about the utilisation of the small punch (SP) creep test, a widely recognised approach for obtaining useful mechanical property information from limited material volumes, as is typically the case with novel alloy development and for any in-situ mechanical testing that may be required. The ability to correlate SP creep results with uniaxial data is vital when considering the benefits of the technique. As such an equation has been developed, known as the kSP method, which has been proven to be an effective tool across several material systems. The current work now explores the application of the aforementioned empirical approaches to correlate small punch creep data obtained on a single crystal superalloy over a range of elevated temperatures. Finite element modelling through ABAQUS software based on the uniaxial creep data has also been implemented to characterise the SP deformation and help corroborate the experimental results.
published_date 2015-06-11T03:24:46Z
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score 11.037603

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