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

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

Swansea University Author: Robert, Lancaster

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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: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49697
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spelling 2019-04-11T12:52:44.6850638 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 EEN 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 1996-1944 thermo-mechanical fatigue; single crystal; CMSX-4®; lifing 1 1 2019 2019-01-01 10.3390/ma12060998 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University UKRI, EP/H022309/1 2019-04-11T12:52:44.6850638 2019-03-22T10:21:19.5976642 College of Engineering 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
format Journal article
container_title Materials
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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 2019-01-01T19:11:35Z
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score 10.873183