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Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications

M. Dowd, K.M. Perkins, D.J. Child, Karen Perkins Orcid Logo, Mike Dowd

International Journal of Fatigue, Volume: 105, Pages: 7 - 15

Swansea University Authors: Karen Perkins Orcid Logo, Mike Dowd

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DOI (Published version): 10.1016/j.ijfatigue.2017.08.009

Abstract

Currently there is doubt surrounding the suitability of chemically-induced stress independent pre-conditioning of specimens to simulate turbine corrosion prior to fatigue testing. the thick oxide scales developed using such techniques can lead to net section loss and typically a lack of grain bounda...

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Published in: International Journal of Fatigue
ISSN: 01421123
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34954
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first_indexed 2017-08-21T18:50:39Z
last_indexed 2020-06-01T18:46:51Z
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spelling 2020-06-01T16:19:27.1745470 v2 34954 2017-08-21 Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications f866eaa2d8f163d2b4e99259966427c8 0000-0001-5826-9705 Karen Perkins Karen Perkins true false 5ed34863b06d600da4be113c1c83a35c Mike Dowd Mike Dowd true false 2017-08-21 EEN Currently there is doubt surrounding the suitability of chemically-induced stress independent pre-conditioning of specimens to simulate turbine corrosion prior to fatigue testing. the thick oxide scales developed using such techniques can lead to net section loss and typically a lack of grain boundary sulphide attack seen in components that experience stress. An alternative approach to a corrosion-fatigue test scenario is suggested by micro-notching fatigue specimens prior to low salt flux corrosion to form grain boundary sulphide particles within channel-like features akin to stress assisted morphologies. On fatigue testing, a trend was identified where a change of mechanism was observed. The grain boundary oxide likely formed in the wake of freshly precipitated sulphide particles fractures around segments of grains leading to a metal loss that contributes to a significant reduction in fatigue properties. Journal Article International Journal of Fatigue 105 7 15 01421123 corrosion; corrosion fatigue; environmental assisted fatigue; pitting corrosion; superalloys 31 12 2017 2017-12-31 10.1016/j.ijfatigue.2017.08.009 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2020-06-01T16:19:27.1745470 2017-08-21T15:33:07.6740955 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised M. Dowd 1 K.M. Perkins 2 D.J. Child 3 Karen Perkins 0000-0001-5826-9705 4 Mike Dowd 5 0034954-29052019161308.pdf 34954.pdf 2019-05-29T16:13:08.9400000 Output 4177760 application/pdf Version of Record true 2019-05-28T00:00:00.0000000 Released under the terms of a Creative Commons Attribution License (CC-BY). true eng
title Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
spellingShingle Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
Karen Perkins
Mike Dowd
title_short Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
title_full Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
title_fullStr Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
title_full_unstemmed Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
title_sort Pre-notched and corroded low cycle fatigue behaviour of a nickel based alloy for disc rotor applications
author_id_str_mv f866eaa2d8f163d2b4e99259966427c8
5ed34863b06d600da4be113c1c83a35c
author_id_fullname_str_mv f866eaa2d8f163d2b4e99259966427c8_***_Karen Perkins
5ed34863b06d600da4be113c1c83a35c_***_Mike Dowd
author Karen Perkins
Mike Dowd
author2 M. Dowd
K.M. Perkins
D.J. Child
Karen Perkins
Mike Dowd
format Journal article
container_title International Journal of Fatigue
container_volume 105
container_start_page 7
publishDate 2017
institution Swansea University
issn 01421123
doi_str_mv 10.1016/j.ijfatigue.2017.08.009
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 Currently there is doubt surrounding the suitability of chemically-induced stress independent pre-conditioning of specimens to simulate turbine corrosion prior to fatigue testing. the thick oxide scales developed using such techniques can lead to net section loss and typically a lack of grain boundary sulphide attack seen in components that experience stress. An alternative approach to a corrosion-fatigue test scenario is suggested by micro-notching fatigue specimens prior to low salt flux corrosion to form grain boundary sulphide particles within channel-like features akin to stress assisted morphologies. On fatigue testing, a trend was identified where a change of mechanism was observed. The grain boundary oxide likely formed in the wake of freshly precipitated sulphide particles fractures around segments of grains leading to a metal loss that contributes to a significant reduction in fatigue properties.
published_date 2017-12-31T03:43:23Z
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score 11.012678

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