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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Autores principales:	Sunguk Wee, Keekeun Kim, Kibum Park, Changsung Seok
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	low-cycle fatigue creep CMSX-4 Ni-based superalloy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/7ad87a2707d54fdf9b61e78921e03875
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spelling	oai:doaj.org-article:7ad87a2707d54fdf9b61e78921e038752021-11-25T18:15:19ZStudy on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures10.3390/ma142269711996-1944https://doaj.org/article/7ad87a2707d54fdf9b61e78921e038752021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6971https://doaj.org/toc/1996-1944Higher 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.Sunguk WeeKeekeun KimKibum ParkChangsung SeokMDPI AGarticlelow-cycle fatiguecreepCMSX-4Ni-based superalloyTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6971, p 6971 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	low-cycle fatigue creep CMSX-4 Ni-based superalloy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	low-cycle fatigue creep CMSX-4 Ni-based superalloy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Sunguk Wee Keekeun Kim Kibum Park Changsung Seok Study on Creep Damage of Ni-Based Superalloy Caused by Variable Load Conditions at Elevated Temperatures
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.
format	article
author	Sunguk Wee Keekeun Kim Kibum Park Changsung Seok
author_facet	Sunguk Wee Keekeun Kim Kibum Park Changsung Seok
author_sort	Sunguk Wee
title	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_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_sort	study on creep damage of ni-based superalloy caused by variable load conditions at elevated temperatures
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7ad87a2707d54fdf9b61e78921e03875
work_keys_str_mv	AT sungukwee studyoncreepdamageofnibasedsuperalloycausedbyvariableloadconditionsatelevatedtemperatures AT keekeunkim studyoncreepdamageofnibasedsuperalloycausedbyvariableloadconditionsatelevatedtemperatures AT kibumpark studyoncreepdamageofnibasedsuperalloycausedbyvariableloadconditionsatelevatedtemperatures AT changsungseok studyoncreepdamageofnibasedsuperalloycausedbyvariableloadconditionsatelevatedtemperatures
_version_	1718411445128921088

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

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