Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy

In this study, the effect of specimen thickness on the fatigue crack growth behavior of the friction stir welded (FSW) joints of 6063-T5 aluminum alloy was investigated. Generally, based on microstructure characterization of welded zone, three different zones have been classified, i.e., stir zone (S...

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Autores principales:	Toru TAKASE, Atsuhiro KOYAMA, Yuichi YAMASHITA, Hyuma SAKI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	fatigue crack growth thickness effect friction stir welding aluminum alloy Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/9432cbde5ff54c23ab151edda175f5d0
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spelling	oai:doaj.org-article:9432cbde5ff54c23ab151edda175f5d02021-11-26T06:58:32ZEffect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy2187-974510.1299/mej.16-00156https://doaj.org/article/9432cbde5ff54c23ab151edda175f5d02016-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/6/3_16-00156/_pdf/-char/enhttps://doaj.org/toc/2187-9745In this study, the effect of specimen thickness on the fatigue crack growth behavior of the friction stir welded (FSW) joints of 6063-T5 aluminum alloy was investigated. Generally, based on microstructure characterization of welded zone, three different zones have been classified, i.e., stir zone (SZ), thermo-mechanically affected zone (TMAZ) and heat-affected zone (HAZ). The crack growth behavior in the SZ was examined. In addition, the fatigue tests on the base materials (BM) of 6063-T5 aluminum alloy were carried out. The specimens with two different thickness were prepared for both the friction stir welded joints (SZ specimen) and the base materials (BM specimen). The fatigue crack propagated along the welding direction in the SZ specimen and the rolling direction in the BM specimen. Fatigue tests were conducted at the stress ratio R=0.1 under axial loading. The crack growth rate was accelerated as the specimen thickness increased and the thickness effect was more significant in the stir zone. In the SZ specimen, the crack growth rate of the thick specimen is approximately three times higher than that of the thin specimen except lower stress intensity factor range. In the BM specimen, the fatigue crack growth rate of the thick specimen is slightly higher than that of the thin specimen.Toru TAKASEAtsuhiro KOYAMAYuichi YAMASHITAHyuma SAKIThe Japan Society of Mechanical Engineersarticlefatiguecrack growththickness effectfriction stir weldingaluminum alloyMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 6, Pp 16-00156-16-00156 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	fatigue crack growth thickness effect friction stir welding aluminum alloy Mechanical engineering and machinery TJ1-1570
spellingShingle	fatigue crack growth thickness effect friction stir welding aluminum alloy Mechanical engineering and machinery TJ1-1570 Toru TAKASE Atsuhiro KOYAMA Yuichi YAMASHITA Hyuma SAKI Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy
description	In this study, the effect of specimen thickness on the fatigue crack growth behavior of the friction stir welded (FSW) joints of 6063-T5 aluminum alloy was investigated. Generally, based on microstructure characterization of welded zone, three different zones have been classified, i.e., stir zone (SZ), thermo-mechanically affected zone (TMAZ) and heat-affected zone (HAZ). The crack growth behavior in the SZ was examined. In addition, the fatigue tests on the base materials (BM) of 6063-T5 aluminum alloy were carried out. The specimens with two different thickness were prepared for both the friction stir welded joints (SZ specimen) and the base materials (BM specimen). The fatigue crack propagated along the welding direction in the SZ specimen and the rolling direction in the BM specimen. Fatigue tests were conducted at the stress ratio R=0.1 under axial loading. The crack growth rate was accelerated as the specimen thickness increased and the thickness effect was more significant in the stir zone. In the SZ specimen, the crack growth rate of the thick specimen is approximately three times higher than that of the thin specimen except lower stress intensity factor range. In the BM specimen, the fatigue crack growth rate of the thick specimen is slightly higher than that of the thin specimen.
format	article
author	Toru TAKASE Atsuhiro KOYAMA Yuichi YAMASHITA Hyuma SAKI
author_facet	Toru TAKASE Atsuhiro KOYAMA Yuichi YAMASHITA Hyuma SAKI
author_sort	Toru TAKASE
title	Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy
title_short	Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy
title_full	Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy
title_fullStr	Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy
title_full_unstemmed	Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy
title_sort	effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-t5 aluminum alloy
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/9432cbde5ff54c23ab151edda175f5d0
work_keys_str_mv	AT torutakase effectofspecimenthicknessonfatiguecrackgrowthbehavioroffrictionstirwelded6063t5aluminumalloy AT atsuhirokoyama effectofspecimenthicknessonfatiguecrackgrowthbehavioroffrictionstirwelded6063t5aluminumalloy AT yuichiyamashita effectofspecimenthicknessonfatiguecrackgrowthbehavioroffrictionstirwelded6063t5aluminumalloy AT hyumasaki effectofspecimenthicknessonfatiguecrackgrowthbehavioroffrictionstirwelded6063t5aluminumalloy
_version_	1718409734642466816

Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy

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