Effect of weld parameters on the microstructure and mechanical properties of dissimilar friction stir joints between pure copper and the aluminum alloy AA7075-T6

2019 ◽  
Vol 61 (2) ◽  
pp. 142-148
Author(s):  
Ahmet Cakan ◽  
Mustafa Ugurlu ◽  
Emre Kaygusuz
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Pure Copper ◽  
Friction Stir ◽  
Microstructure And Mechanical Properties ◽  
Weld Parameters

scholarly journals Preliminary study on the microstructure and mechanical properties of dissimilar joints of aluminum alloy and pure copper by FSW

2017 ◽  
Vol 112 ◽  
pp. 04005 ◽  
Author(s):  
Daniela-Monica Iordache ◽  
Cătălin-Marian Ducu ◽  
Eduard-Laurentiu Niţu ◽  
Doina Iacomi ◽  
Adriana-Gabriela Plăiaşu
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Pure Copper ◽  
Dissimilar Joints ◽  
Microstructure And Mechanical Properties ◽  
Preliminary Study

scholarly journals Microstructure and Mechanical Properties of Friction Stir Welded Joints Between Commercially Pure Copper and Al 6351 Alloy

2017 ◽  
Vol 62 (3) ◽  
pp. 1819-1825
Author(s):  
V.C. Sinha ◽  
S. Kundu ◽  
S. Chatterjee
Keyword(s):  
Mechanical Properties ◽  
Welded Joints ◽  
Rotational Speed ◽  
Pure Copper ◽  
Stir Zone ◽  
Tool Rotational Speed ◽  
Friction Stir ◽  
Commercially Pure ◽  
Microstructure And Mechanical Properties ◽  
Commercially Pure Copper

AbstractIn the present study, the effect of tool rotational speed on microstructure and mechanical properties of friction stir welded joints between commercially pure copper and 6351 Al alloy was carried out in the range of tool rotational speeds of 300-900 rpm in steps of 150 rpm at 30 mm/minutes travel speed. Up to 450 rpm, the interface of the joints is free from intermetallics and Al4Cu9intermetallic has been observed at the stir zone. However, Al4Cu9intermetallic was observed both at the interface and the stir zone at 600 rpm. At 750 and 900 rpm tool rotational speed, the layers of AlCu, Al2Cu3and Al4Cu9intermetallics were observed at the interface and only Al4Cu9intermetallics has been observed in the stir zone. The maximum ultimate tensile strength of ~207 MPa and yield strength of ~168 MPa along with ~6.2% elongation at fracture of the joint have been obtained when processed at 450 rpm tool rotational speed.

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