Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding

This work aims to study the influence of the tool rotational speed and tool traverse speed on dissimilar friction stir butt welds on 3 mm thick AA5083 to commercially pure copper plates. Complex microstructures were formed in the thermo-mechanically affected zone, in which a vortex-like pattern and...

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Main Authors: Gihad Karrar, Alexander Galloway, Athanasios Toumpis, Hongjun Li, Fadi Al-Badour
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S223878542031680X
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author Gihad Karrar
Alexander Galloway
Athanasios Toumpis
Hongjun Li
Fadi Al-Badour
author_facet Gihad Karrar
Alexander Galloway
Athanasios Toumpis
Hongjun Li
Fadi Al-Badour
author_sort Gihad Karrar
collection DOAJ
description This work aims to study the influence of the tool rotational speed and tool traverse speed on dissimilar friction stir butt welds on 3 mm thick AA5083 to commercially pure copper plates. Complex microstructures were formed in the thermo-mechanically affected zone, in which a vortex-like pattern and lamellar structures were found. Several intermetallic compounds were identified in this region, such as Al2Cu, Al4Cu9 and these developed an inhomogeneous hardness distribution. The highest ultimate tensile strength of 203 MPa and joint efficiency of 94.8% were achieved at 1400 rpm tool rotational speed and 120 mm/min traverse speed. Placing the softer material (aluminium) on the advancing side produced an excellent metallurgical bond with no requirement for tool offsetting.
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spelling doaj.art-c00e862fbd9e4f17858df46fba2cdc1f2022-12-22T00:24:00ZengElsevierJournal of Materials Research and Technology2238-78542020-09-01951196811979Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir weldingGihad Karrar0Alexander Galloway1Athanasios Toumpis2Hongjun Li3Fadi Al-Badour4Department of Mechanical & Aerospace Engineering, University of Strathclyde, Glasgow G1 1XJ, UK; Corresponding author.Department of Mechanical & Aerospace Engineering, University of Strathclyde, Glasgow G1 1XJ, UKDepartment of Mechanical & Aerospace Engineering, University of Strathclyde, Glasgow G1 1XJ, UKFaculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Xiasha Higher Education Zone, Hangzhou 310018, PR ChinaMechanical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi ArabiaThis work aims to study the influence of the tool rotational speed and tool traverse speed on dissimilar friction stir butt welds on 3 mm thick AA5083 to commercially pure copper plates. Complex microstructures were formed in the thermo-mechanically affected zone, in which a vortex-like pattern and lamellar structures were found. Several intermetallic compounds were identified in this region, such as Al2Cu, Al4Cu9 and these developed an inhomogeneous hardness distribution. The highest ultimate tensile strength of 203 MPa and joint efficiency of 94.8% were achieved at 1400 rpm tool rotational speed and 120 mm/min traverse speed. Placing the softer material (aluminium) on the advancing side produced an excellent metallurgical bond with no requirement for tool offsetting.http://www.sciencedirect.com/science/article/pii/S223878542031680XIntermetallic compoundsFriction stir weldingMechanical propertiesDissimilar joiningAA5083Commercially pure copper.
spellingShingle Gihad Karrar
Alexander Galloway
Athanasios Toumpis
Hongjun Li
Fadi Al-Badour
Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding
Journal of Materials Research and Technology
Intermetallic compounds
Friction stir welding
Mechanical properties
Dissimilar joining
AA5083
Commercially pure copper.
title Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding
title_full Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding
title_fullStr Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding
title_full_unstemmed Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding
title_short Microstructural characterisation and mechanical properties of dissimilar AA5083-copper joints produced by friction stir welding
title_sort microstructural characterisation and mechanical properties of dissimilar aa5083 copper joints produced by friction stir welding
topic Intermetallic compounds
Friction stir welding
Mechanical properties
Dissimilar joining
AA5083
Commercially pure copper.
url http://www.sciencedirect.com/science/article/pii/S223878542031680X
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