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Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys

Elizabeth Sackett Orcid Logo, Martin Bache

Metals, Volume: 11, Issue: 9, Start page: 1456

Swansea University Authors: Elizabeth Sackett Orcid Logo, Martin Bache

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DOI (Published version): 10.3390/met11091456

Abstract

Previous mechanistic models, proposed to explain the process of damage accumulation and stress redistribution between strong and weak regions inherent within the microstructure of α/β and near α titanium alloys, are validated through a matrix of experiments employing a non-standard variant of the al...

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Published in: Metals
ISSN: 2075-4701
Published: MDPI AG 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa58002
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first_indexed 2021-09-21T10:15:15Z
last_indexed 2023-01-11T14:38:17Z
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spelling 2022-10-31T16:53:12.4386159 v2 58002 2021-09-21 Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys 55d1695a53656de6b0bdfa4c08d8bcd4 0000-0002-5975-6967 Elizabeth Sackett Elizabeth Sackett true false 3453423659f6bcfddcd0a716c6b0e36a Martin Bache Martin Bache true false 2021-09-21 MTLS Previous mechanistic models, proposed to explain the process of damage accumulation and stress redistribution between strong and weak regions inherent within the microstructure of α/β and near α titanium alloys, are validated through a matrix of experiments employing a non-standard variant of the alloy Ti 685. The grain size of the model material was deliberately processed to offer grains up to 20 mm in diameter, to facilitate constitutive measurements within individual grains. A range of experiments were performed under static and cyclic loading, with the fatigue cycle conducted under either strain or load control. Data will be reported to demonstrate significant variations in elastic and plastic properties between grains and emphasise the role of time dependent strain accumulation. Implications for the “dwell sensitive fatigue” or “cold creep” response of conventional titanium alloys will be discussed. Journal Article Metals 11 9 1456 MDPI AG 2075-4701 dwell fatigue; cold creep; microstructurally textured regions; titanium 15 9 2021 2021-09-15 10.3390/met11091456 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University Other The research was sponsored by the Air Force Office of Scientific Research, Air Force Material Command, USAF, under grant number FA8655-04-1-3023. 2022-10-31T16:53:12.4386159 2021-09-21T11:08:51.1379930 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Elizabeth Sackett 0000-0002-5975-6967 1 Martin Bache 2 58002__21018__27b01ff691a3414696dc66d9b2239dc4.pdf 58002.pdf 2021-09-27T16:21:45.2406502 Output 6109833 application/pdf Version of Record true © 2021 by the authors. This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/
title Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
spellingShingle Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
Elizabeth Sackett
Martin Bache
title_short Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
title_full Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
title_fullStr Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
title_full_unstemmed Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
title_sort Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
author_id_str_mv 55d1695a53656de6b0bdfa4c08d8bcd4
3453423659f6bcfddcd0a716c6b0e36a
author_id_fullname_str_mv 55d1695a53656de6b0bdfa4c08d8bcd4_***_Elizabeth Sackett
3453423659f6bcfddcd0a716c6b0e36a_***_Martin Bache
author Elizabeth Sackett
Martin Bache
author2 Elizabeth Sackett
Martin Bache
format Journal article
container_title Metals
container_volume 11
container_issue 9
container_start_page 1456
publishDate 2021
institution Swansea University
issn 2075-4701
doi_str_mv 10.3390/met11091456
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 - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Previous mechanistic models, proposed to explain the process of damage accumulation and stress redistribution between strong and weak regions inherent within the microstructure of α/β and near α titanium alloys, are validated through a matrix of experiments employing a non-standard variant of the alloy Ti 685. The grain size of the model material was deliberately processed to offer grains up to 20 mm in diameter, to facilitate constitutive measurements within individual grains. A range of experiments were performed under static and cyclic loading, with the fatigue cycle conducted under either strain or load control. Data will be reported to demonstrate significant variations in elastic and plastic properties between grains and emphasise the role of time dependent strain accumulation. Implications for the “dwell sensitive fatigue” or “cold creep” response of conventional titanium alloys will be discussed.
published_date 2021-09-15T04:14:10Z
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score 11.013619

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