Effect of Zinc Interlayer in Microstructure Evolution and Mechanical Properties in Dissimilar Friction Stir Welding of Aluminum to Titanium

2018 ◽  
Vol 27 (11) ◽  
pp. 6016-6026 ◽  
Author(s):  
Amlan Kar ◽  
Satish V. Kailas ◽  
Satyam Suwas
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Microstructure Evolution ◽  
Friction Stir ◽  
Dissimilar Friction Stir Welding ◽  
Zinc Interlayer

scholarly journals Microstructure Evolution during Dissimilar Friction Stir Welding of AA7003-T4 and AA6060-T4

Materials ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 342 ◽  
Author(s):  
Jialiang Dong ◽  
Datong Zhang ◽  
Weiwen Zhang ◽  
Wen Zhang ◽  
Cheng Qiu
Keyword(s):  
Friction Stir Welding ◽  
Microstructure Evolution ◽  
Friction Stir ◽  
Dissimilar Friction Stir Welding

scholarly journals Investigation of microstructural and mechanical properties of AA1050-AZ91D dissimilar friction stir welding

2021 ◽  
Vol 15 (3) ◽  
pp. 8332-8343
Author(s):  
Oyindamola Kayode ◽  
Esther Titilayo Akinlabi
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Solid State ◽  
Chemical Properties ◽  
Traverse Speed ◽  
Friction Stir ◽  
Microhardness Distribution ◽  
Dissimilar Weld ◽  
State Diffusion ◽  
Dissimilar Friction Stir Welding

Joining of aluminium and magnesium alloys frequently pose significant challenges to the extent where joining may seem impossible, due to differences in the physical, metallurgical, and chemical properties of the materials. Friction stir welding is a solid-state welding technique which uses a non-consumable tool to join metals. This study examines the dissimilar friction stir welding of 3 mm thick AA1050 and AZ91D alloy sheets. Successful defect-free joints were achieved at rotational speeds of 400 rpm and 600 rpm, and a constant traverse speed of 50 mm/min. The metallurgical investigations used to characterize the microstructure of the welds are optical microscopy (OM), scanning electron microscope (SEM) and X-ray diffraction (XRD). The microstructures of the samples show distinct morphology attributed to their different rotational speeds. However, Al3Mg2 intermetallics (IMCs) phase was detected in the white bands present in both weld samples. The IMCs were formed through solid-state diffusion. The mechanical properties characterizations includes the microhardness profiles and tensile testing. The variation in the rotational speeds do not have a significant effect on the microhardness distribution of the weld samples. The tensile strength of the dissimilar weld improved substantially with the presence of an interpenetration feature (IPF).

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