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Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy

Richard Smith, Robert Lancaster Orcid Logo, Jonathan Jones, Julian Mason-Flucke

Materials, Volume: 12, Issue: 6, Start page: 998

Swansea University Author: Robert Lancaster Orcid Logo

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DOI (Published version): 10.3390/ma12060998

Abstract

Thermo-mechanical fatigue (TMF) is a complex damage mechanism that is considered to be one of the most dominant life limiting factors in hot-section components. Turbine blades and nozzle guide vanes are particularly susceptible to this form of material degradation, which result from the simultaneous...

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Published in: Materials
ISSN: 1996-1944
Published: MDPI AG 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49697
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first_indexed 2019-03-22T13:57:13Z
last_indexed 2020-10-20T03:00:00Z
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spelling 2020-10-19T11:59:26.3278145 v2 49697 2019-03-22 Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false 2019-03-22 MTLS Thermo-mechanical fatigue (TMF) is a complex damage mechanism that is considered to be one of the most dominant life limiting factors in hot-section components. Turbine blades and nozzle guide vanes are particularly susceptible to this form of material degradation, which result from the simultaneous cycling of mechanical and thermal loads. The realisation of TMF conditions in a laboratory environment is a significant challenge for design engineers and materials scientists. Effort has been made to replicate the in-service environments of single crystal (SX) materials where a lifing methodology that encompasses all of the arduous conditions and interactions present through a typical TMF cycle has been proposed. Traditional procedures for the estimation of TMF life typically adopt empirical correlative approaches with isothermal low cycle fatigue data. However, these methods are largely restricted to polycrystalline alloys, and a more innovative approach is now required for single-crystal superalloys, to accommodate the alternative crystallographic orientations in which these alloys can be solidified. Journal Article Materials 12 6 998 MDPI AG 1996-1944 thermo-mechanical fatigue; single crystal; CMSX-4®; lifing 31 12 2019 2019-12-31 10.3390/ma12060998 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University UKRI, EP/H022309/1 2020-10-19T11:59:26.3278145 2019-03-22T10:21:19.5976642 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Richard Smith 1 Robert Lancaster 0000-0002-1365-6944 2 Jonathan Jones 3 Julian Mason-Flucke 4 0049697-11042019125109.pdf APCE064.pdf 2019-04-11T12:51:09.4030000 Output 5487788 application/pdf Version of Record true 2019-04-11T00:00:00.0000000 Distributed under the terms of a Creative Commons Attribution CC-BY 4.0 Licence. true eng
title Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
spellingShingle Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
Robert Lancaster
title_short Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
title_full Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
title_fullStr Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
title_full_unstemmed Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
title_sort Lifing the Effects of Crystallographic Orientation on the Thermo-Mechanical Fatigue Behaviour of a Single-Crystal Superalloy
author_id_str_mv e1a1b126acd3e4ff734691ec34967f29
author_id_fullname_str_mv e1a1b126acd3e4ff734691ec34967f29_***_Robert Lancaster
author Robert Lancaster
author2 Richard Smith
Robert Lancaster
Jonathan Jones
Julian Mason-Flucke
format Journal article
container_title Materials
container_volume 12
container_issue 6
container_start_page 998
publishDate 2019
institution Swansea University
issn 1996-1944
doi_str_mv 10.3390/ma12060998
publisher MDPI AG
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 Thermo-mechanical fatigue (TMF) is a complex damage mechanism that is considered to be one of the most dominant life limiting factors in hot-section components. Turbine blades and nozzle guide vanes are particularly susceptible to this form of material degradation, which result from the simultaneous cycling of mechanical and thermal loads. The realisation of TMF conditions in a laboratory environment is a significant challenge for design engineers and materials scientists. Effort has been made to replicate the in-service environments of single crystal (SX) materials where a lifing methodology that encompasses all of the arduous conditions and interactions present through a typical TMF cycle has been proposed. Traditional procedures for the estimation of TMF life typically adopt empirical correlative approaches with isothermal low cycle fatigue data. However, these methods are largely restricted to polycrystalline alloys, and a more innovative approach is now required for single-crystal superalloys, to accommodate the alternative crystallographic orientations in which these alloys can be solidified.
published_date 2019-12-31T04:00:53Z
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score 10.998116

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