Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures

Higher fatigue and creep resistance at high temperatures are the essential properties for materials such as those used in gas turbines for power generation and aircraft turbines. Therefore, the nickel-based superalloy CMSX-4 was developed through single-crystal casting to satisfy these requirements....

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Detalles Bibliográficos
Autores principales: Wee, Sunguk, Kim, Keekeun, Park, Kibum, Seok, Changsung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8621902/
https://www.ncbi.nlm.nih.gov/pubmed/34832371
http://dx.doi.org/10.3390/ma14226971
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author Wee, Sunguk
Kim, Keekeun
Park, Kibum
Seok, Changsung
author_facet Wee, Sunguk
Kim, Keekeun
Park, Kibum
Seok, Changsung
author_sort Wee, Sunguk
collection PubMed
description Higher fatigue and creep resistance at high temperatures are the essential properties for materials such as those used in gas turbines for power generation and aircraft turbines. Therefore, the nickel-based superalloy CMSX-4 was developed through single-crystal casting to satisfy these requirements. In this study, the CMSX-4 creep test results reported by previous researchers were used to mathematically derive an equation to estimate the amount of creep damage occurring under variable load conditions. In addition, low-cycle fatigue tests were performed, and the effect of creep damage occurring during fatigue on material failure was described.
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spelling pubmed-86219022021-11-27 Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures Wee, Sunguk Kim, Keekeun Park, Kibum Seok, Changsung Materials (Basel) Article Higher fatigue and creep resistance at high temperatures are the essential properties for materials such as those used in gas turbines for power generation and aircraft turbines. Therefore, the nickel-based superalloy CMSX-4 was developed through single-crystal casting to satisfy these requirements. In this study, the CMSX-4 creep test results reported by previous researchers were used to mathematically derive an equation to estimate the amount of creep damage occurring under variable load conditions. In addition, low-cycle fatigue tests were performed, and the effect of creep damage occurring during fatigue on material failure was described. MDPI 2021-11-18 /pmc/articles/PMC8621902/ /pubmed/34832371 http://dx.doi.org/10.3390/ma14226971 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wee, Sunguk
Kim, Keekeun
Park, Kibum
Seok, Changsung
Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
title Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
title_full Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
title_fullStr Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
title_full_unstemmed Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
title_short Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
title_sort study on creep damage of ni-based superalloy caused by variable load conditions at elevated temperatures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8621902/
https://www.ncbi.nlm.nih.gov/pubmed/34832371
http://dx.doi.org/10.3390/ma14226971
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