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The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite

Ashley Dyer, Jonathan Jones, Richard Cutts, Mark Whittaker Orcid Logo

Materials, Volume: 12, Issue: 6, Start page: 953

Swansea University Author: Mark Whittaker Orcid Logo

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DOI (Published version): 10.3390/ma12060953

Abstract

The thermo-mechanical fatigue (TMF) behaviour of a Ti-6Al-4V matrix composite reinforced with SCS-6 silicon carbide fibres (140 μm longitudinal fibres, laid up hexagonally) has been investigated. In-phase and out-of-phase TMF cycles were utilized, cycling between 80–300 °C, with varying maximum stre...

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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/cronfa49698
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spelling 2020-10-16T15:21:38.8073897 v2 49698 2019-03-22 The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite a146c6d442cb2c466d096179f9ac97ca 0000-0002-5854-0726 Mark Whittaker Mark Whittaker true false 2019-03-22 MTLS The thermo-mechanical fatigue (TMF) behaviour of a Ti-6Al-4V matrix composite reinforced with SCS-6 silicon carbide fibres (140 μm longitudinal fibres, laid up hexagonally) has been investigated. In-phase and out-of-phase TMF cycles were utilized, cycling between 80–300 °C, with varying maximum stress. The microstructure and fracture surfaces were studied using electron backscatter diffraction (EBSD), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), profilometry, and optical microscopy. The results have shown the damaging effect of out-of-phase cycling with crack initiation occurring earlier than in in-phase tests and crack propagation rates being accelerated in out-of-phase cycles. Fatigue crack initiation has been shown to be sensitive to crystallographic texture in the cladding material and thermo-mechanical fatigue test results can be considered according to a previously proposed conceptual framework for the interpretation of metal matrix composite fatigue. Journal Article Materials 12 6 953 MDPI AG 1996-1944 titanium; silicon carbide; TMF; texture 22 3 2019 2019-03-22 10.3390/ma12060953 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University UKRI, EP/H022309/1 2020-10-16T15:21:38.8073897 2019-03-22T10:25:52.5051501 College of Engineering Engineering Ashley Dyer 1 Jonathan Jones 2 Richard Cutts 3 Mark Whittaker 0000-0002-5854-0726 4 0049698-22032019162003.pdf APCE063.materials-12-00953.pdf 2019-03-22T16:20:03.0100000 Output 3951509 application/pdf Version of Record true 2019-03-22T00:00:00.0000000 Distributed under the terms of a Creative Commons Attribution (CC-BY) License. true eng
title The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
spellingShingle The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
Mark Whittaker
title_short The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
title_full The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
title_fullStr The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
title_full_unstemmed The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
title_sort The Effect of Phase Angle on the Thermo-Mechanical Fatigue Life of a Titanium Metal Matrix Composite
author_id_str_mv a146c6d442cb2c466d096179f9ac97ca
author_id_fullname_str_mv a146c6d442cb2c466d096179f9ac97ca_***_Mark Whittaker
author Mark Whittaker
author2 Ashley Dyer
Jonathan Jones
Richard Cutts
Mark Whittaker
format Journal article
container_title Materials
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container_start_page 953
publishDate 2019
institution Swansea University
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doi_str_mv 10.3390/ma12060953
publisher MDPI AG
college_str College of Engineering
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hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
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description The thermo-mechanical fatigue (TMF) behaviour of a Ti-6Al-4V matrix composite reinforced with SCS-6 silicon carbide fibres (140 μm longitudinal fibres, laid up hexagonally) has been investigated. In-phase and out-of-phase TMF cycles were utilized, cycling between 80–300 °C, with varying maximum stress. The microstructure and fracture surfaces were studied using electron backscatter diffraction (EBSD), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), profilometry, and optical microscopy. The results have shown the damaging effect of out-of-phase cycling with crack initiation occurring earlier than in in-phase tests and crack propagation rates being accelerated in out-of-phase cycles. Fatigue crack initiation has been shown to be sensitive to crystallographic texture in the cladding material and thermo-mechanical fatigue test results can be considered according to a previously proposed conceptual framework for the interpretation of metal matrix composite fatigue.
published_date 2019-03-22T04:02:57Z
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