Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint

The aim of this study is to investigate the low-cycle fatigue (LCF) properties of an AISI 304L welded joint based on experimental data. The influential parameters on the LCF such as the specimen thickness, strain ratio and cryogenic temperature were considered in this experimental study. In order to...

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Main Authors: Dongjin Oh, Sangwoo Song, Namkyu Kim, Myunghyun Kim
Format: Article
Language:English
Published: MDPI AG 2018-08-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/8/9/657
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author Dongjin Oh
Sangwoo Song
Namkyu Kim
Myunghyun Kim
author_facet Dongjin Oh
Sangwoo Song
Namkyu Kim
Myunghyun Kim
author_sort Dongjin Oh
collection DOAJ
description The aim of this study is to investigate the low-cycle fatigue (LCF) properties of an AISI 304L welded joint based on experimental data. The influential parameters on the LCF such as the specimen thickness, strain ratio and cryogenic temperature were considered in this experimental study. In order to investigate the thickness effect on the LCF behavior, two types of specimens with thicknesses of 5 mm and 10 mm were used in an LCF test. In addition, the fatigue tests were conducted under strain control with three different strain ratios of R = −1, 0, and 0.5 at room and cryogenic temperatures. Based on the results obtained by this experimental study, no significant effect involved with the thickness and the strain ratio were observed. However, it was clearly observed that LCF performance at room temperature is lower than that at cryogenic temperature. Finally, an LCF design curve that can be used in design of the liquefied natural gas (LNG) applications is suggested.
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spelling doaj.art-c76288c23a6148a99d81e0075b864ba92022-12-22T03:00:34ZengMDPI AGMetals2075-47012018-08-018965710.3390/met8090657met8090657Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded JointDongjin Oh0Sangwoo Song1Namkyu Kim2Myunghyun Kim3Department of Joining Technology, Korea Institute of Materials Science, Changwon 51508, KoreaDepartment of Joining Technology, Korea Institute of Materials Science, Changwon 51508, KoreaDepartment of Joining Technology, Korea Institute of Materials Science, Changwon 51508, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, KoreaThe aim of this study is to investigate the low-cycle fatigue (LCF) properties of an AISI 304L welded joint based on experimental data. The influential parameters on the LCF such as the specimen thickness, strain ratio and cryogenic temperature were considered in this experimental study. In order to investigate the thickness effect on the LCF behavior, two types of specimens with thicknesses of 5 mm and 10 mm were used in an LCF test. In addition, the fatigue tests were conducted under strain control with three different strain ratios of R = −1, 0, and 0.5 at room and cryogenic temperatures. Based on the results obtained by this experimental study, no significant effect involved with the thickness and the strain ratio were observed. However, it was clearly observed that LCF performance at room temperature is lower than that at cryogenic temperature. Finally, an LCF design curve that can be used in design of the liquefied natural gas (LNG) applications is suggested.http://www.mdpi.com/2075-4701/8/9/657low-cycle fatiguewelded jointstrain ratiothickness effectcryogenic temperature
spellingShingle Dongjin Oh
Sangwoo Song
Namkyu Kim
Myunghyun Kim
Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint
Metals
low-cycle fatigue
welded joint
strain ratio
thickness effect
cryogenic temperature
title Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint
title_full Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint
title_fullStr Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint
title_full_unstemmed Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint
title_short Effect of Cryogenic Temperature on Low-Cycle Fatigue Behavior of AISI 304L Welded Joint
title_sort effect of cryogenic temperature on low cycle fatigue behavior of aisi 304l welded joint
topic low-cycle fatigue
welded joint
strain ratio
thickness effect
cryogenic temperature
url http://www.mdpi.com/2075-4701/8/9/657
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