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Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy

Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy

A new welding method: ultrasonic assisted friction stir spot welding (UAFSSW) was put forward in the present study. UAFSSW was successfully applied to weld dissimilar AZ31 Mg alloy and 6061 Al alloy. Results show that for either conventional FSSW or UAFSSW, sound joints are obtained in the configura...

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Main Authors: Ji, S.D., Li, Z.W., Ma, L., Yue, Y.M., Gao, S.S.
Format: Article
Language:English
Published: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2016
Series:Проблемы прочности
Subjects:
Научно-технический раздел
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/173412
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spelling irk-123456789-1734122020-12-04T01:26:24Z Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy Ji, S.D. Li, Z.W. Ma, L. Yue, Y.M. Gao, S.S. Научно-технический раздел A new welding method: ultrasonic assisted friction stir spot welding (UAFSSW) was put forward in the present study. UAFSSW was successfully applied to weld dissimilar AZ31 Mg alloy and 6061 Al alloy. Results show that for either conventional FSSW or UAFSSW, sound joints are obtained in the configuration of upper Mg alloy and lower Al alloy. Ultrasonic vibration is beneficial to the upward flow of lower aluminum alloy, the increase of the stir zone (SZ) width and the refinement of the grains in the SZ. All cross sections of the Al–Mg joints exhibit the formation of intermetallic compounds (IMC) in the SZ. The crack of the conventional FSSW joint propagates exactly along the interface between the dissimilar materials and presents an inverted “V” morphology. After reaching the highest point of the hook defect, crack of the UAFSSW joint extends to the keyhole, leaving a portion of Mg alloy on the lower sheet. Conventional FSSW joint and UAFSSW joint show different IMC compositions at the faying interface. 2016 Article Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy / S.D. Ji, Z.W. Li, L. Ma, Y.M. Yue, S.S. Gao // Проблемы прочности. — 2016. — № 1. — С. 7-12. — Бібліогр.: 18 назв. — англ. 0556-171X http://dspace.nbuv.gov.ua/handle/123456789/173412 539.4 en Проблемы прочности Інститут проблем міцності ім. Г.С. Писаренко НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Научно-технический раздел
Научно-технический раздел
spellingShingle Научно-технический раздел
Научно-технический раздел
Ji, S.D.
Li, Z.W.
Ma, L.
Yue, Y.M.
Gao, S.S.
Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy
Проблемы прочности
description A new welding method: ultrasonic assisted friction stir spot welding (UAFSSW) was put forward in the present study. UAFSSW was successfully applied to weld dissimilar AZ31 Mg alloy and 6061 Al alloy. Results show that for either conventional FSSW or UAFSSW, sound joints are obtained in the configuration of upper Mg alloy and lower Al alloy. Ultrasonic vibration is beneficial to the upward flow of lower aluminum alloy, the increase of the stir zone (SZ) width and the refinement of the grains in the SZ. All cross sections of the Al–Mg joints exhibit the formation of intermetallic compounds (IMC) in the SZ. The crack of the conventional FSSW joint propagates exactly along the interface between the dissimilar materials and presents an inverted “V” morphology. After reaching the highest point of the hook defect, crack of the UAFSSW joint extends to the keyhole, leaving a portion of Mg alloy on the lower sheet. Conventional FSSW joint and UAFSSW joint show different IMC compositions at the faying interface.
format Article
author Ji, S.D.
Li, Z.W.
Ma, L.
Yue, Y.M.
Gao, S.S.
author_facet Ji, S.D.
Li, Z.W.
Ma, L.
Yue, Y.M.
Gao, S.S.
author_sort Ji, S.D.
title Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy
title_short Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy
title_full Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy
title_fullStr Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy
title_full_unstemmed Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy
title_sort investigation of ultrasonic assisted friction stir spot welding of magnesium alloy to aluminum alloy
publisher Інститут проблем міцності ім. Г.С. Писаренко НАН України
publishDate 2016
topic_facet Научно-технический раздел
url http://dspace.nbuv.gov.ua/handle/123456789/173412
citation_txt Investigation of Ultrasonic Assisted Friction Stir Spot Welding of Magnesium Alloy to Aluminum Alloy / S.D. Ji, Z.W. Li, L. Ma, Y.M. Yue, S.S. Gao // Проблемы прочности. — 2016. — № 1. — С. 7-12. — Бібліогр.: 18 назв. — англ.
series Проблемы прочности
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first_indexed 2023-10-18T22:34:02Z
last_indexed 2023-10-18T22:34:02Z
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