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The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy

MATHEW HENDERY, Mark Whittaker Orcid Logo, Ben Cockings, P.M. Mignanelli

Corrosion Science, Volume: 198, Start page: 110113

Swansea University Authors: MATHEW HENDERY, Mark Whittaker Orcid Logo, Ben Cockings

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DOI (Published version): 10.1016/j.corsci.2022.110113

Abstract

This paper describes work to study hot corrosion damage in the nickel-based gas turbine alloy RR1000 coated with various salts at 600℃. Interest in type-II hot corrosion on the fatigue resistance of gas turbine alloys has increased to minimise power/thermal inefficiencies. Stress-free corrosion demo...

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Published in: Corrosion Science
ISSN: 0010-938X
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa59246
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spelling 2022-09-05T13:14:43.4109163 v2 59246 2022-01-25 The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy 3800acf7e6c0ed6c87028454fae97d2f MATHEW HENDERY MATHEW HENDERY true false a146c6d442cb2c466d096179f9ac97ca 0000-0002-5854-0726 Mark Whittaker Mark Whittaker true false 998ffd9fa65fa0c2ffc718a5bff10cdd Ben Cockings Ben Cockings true false 2022-01-25 This paper describes work to study hot corrosion damage in the nickel-based gas turbine alloy RR1000 coated with various salts at 600℃. Interest in type-II hot corrosion on the fatigue resistance of gas turbine alloys has increased to minimise power/thermal inefficiencies. Stress-free corrosion demonstrated a greater impact of sulphate (versus chloride) on maximum pit depth, a key influencing factor of fatigue lives. In corrosion-fatigue testing, at low stresses sulphate was shown to be more influential of fatigue life. At high stresses, the presence of greater crack initiation sites, reduced initiation lives and cracked oxide suggests chlorine influenced the crack-initiation behaviour. Journal Article Corrosion Science 198 110113 Elsevier BV 0010-938X Molten salts; Nickel; Superalloys; Corrosion fatigue; Sulphidation 15 4 2022 2022-04-15 10.1016/j.corsci.2022.110113 COLLEGE NANME COLLEGE CODE Swansea University SU Library paid the OA fee (TA Institutional Deal) The current research was funded by the EPSRC Rolls-Royce Strategic Partnership in Structural Metallic Systems for Gas Turbines (grants EP/H500383/1 and EP/H022309/1) alongside the Materials and Manufacturing Academy (M2A) supported through the European Social Fund. The provision of materials and supporting information from Rolls-Royce plc is gratefully acknowledged. Mechanical testing was performed by MLH and BJC at Swansea Materials Research and Testing Ltd. (SMaRT). 2022-09-05T13:14:43.4109163 2022-01-25T13:27:30.1317368 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised MATHEW HENDERY 1 Mark Whittaker 0000-0002-5854-0726 2 Ben Cockings 3 P.M. Mignanelli 4 59246__24300__0f663470bab54d8a965c61e11c0b25bb.pdf 59246.pdf 2022-06-13T15:46:38.6827556 Output 8787620 application/pdf Version of Record true This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
spellingShingle The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
MATHEW HENDERY
Mark Whittaker
Ben Cockings
title_short The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
title_full The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
title_fullStr The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
title_full_unstemmed The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
title_sort The effect of salt composition on the stress-free and corrosion-fatigue performance of a fine-grained nickel-based superalloy
author_id_str_mv 3800acf7e6c0ed6c87028454fae97d2f
a146c6d442cb2c466d096179f9ac97ca
998ffd9fa65fa0c2ffc718a5bff10cdd
author_id_fullname_str_mv 3800acf7e6c0ed6c87028454fae97d2f_***_MATHEW HENDERY
a146c6d442cb2c466d096179f9ac97ca_***_Mark Whittaker
998ffd9fa65fa0c2ffc718a5bff10cdd_***_Ben Cockings
author MATHEW HENDERY
Mark Whittaker
Ben Cockings
author2 MATHEW HENDERY
Mark Whittaker
Ben Cockings
P.M. Mignanelli
format Journal article
container_title Corrosion Science
container_volume 198
container_start_page 110113
publishDate 2022
institution Swansea University
issn 0010-938X
doi_str_mv 10.1016/j.corsci.2022.110113
publisher Elsevier BV
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 This paper describes work to study hot corrosion damage in the nickel-based gas turbine alloy RR1000 coated with various salts at 600℃. Interest in type-II hot corrosion on the fatigue resistance of gas turbine alloys has increased to minimise power/thermal inefficiencies. Stress-free corrosion demonstrated a greater impact of sulphate (versus chloride) on maximum pit depth, a key influencing factor of fatigue lives. In corrosion-fatigue testing, at low stresses sulphate was shown to be more influential of fatigue life. At high stresses, the presence of greater crack initiation sites, reduced initiation lives and cracked oxide suggests chlorine influenced the crack-initiation behaviour.
published_date 2022-04-15T04:16:24Z
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score 10.999161

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