Effect of post weld artificial aging on the local and global mechanical properties of friction stir welds of aluminum alloy 6061-T6

2017 ◽  
Vol 19 (1) ◽  
pp. 48-56
Author(s):  
M. A. Abd Elrahman ◽  
M. E. Abd El-Azim ◽  
O. H. Ibrahim ◽  
M. R. El-Koussy
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Artificial Aging ◽  
Friction Stir ◽  
Aluminum Alloy 6061 ◽  
Alloy 6061

scholarly journals Effect of Modified Pin Profile and Process Parameters on the Friction Stir Welding of Aluminum Alloy 6061-T6

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
J. C. Verduzco Juárez ◽  
G. M. Dominguez Almaraz ◽  
R. García Hernández ◽  
J. J. Villalón López
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Material Flow ◽  
Flow Behavior ◽  
Tensile Tests ◽  
Welding Parameters ◽  
Friction Stir ◽  
Aluminum Alloy 6061 ◽  
Alloy 6061

This work deals with the effect of a new “bolt-head” pin profile on the friction stir welding performance of the aluminum alloy 6061-T6, compared to traditional pin profiles. Friction stir welding parameters such as the tool rotation speed and the welding speed were investigated together with the different pin profiles; the results show that the new “bolt-head” pin profile leads to better mechanical properties of welded specimens. The pin profiles used in this work were the straight square (SS), straight hexagon (SH), taper cylindrical (TC), and the straight hexagon “bolt-head” (SHBH). It was found that the last pin profile improves the material flow behavior and the uniform distribution of plastic deformation and reduces the formation of macroscopic defects on the welded zone. Mechanical tensile tests on welded specimens were performed to determine the tensile strength: the specimens welded with the SHBH pin profile have shown the highest mechanical properties. An approach is presented for material flow on this aluminum alloy using the SHBH pin profile, which is related to the improvement on the resulting mechanical properties.

Aging time influence on the mechanical properties of aluminum alloy (6061)

2021 ◽  
Author(s):  
Noor Dawood Salman ◽  
Zeyad Doshan Kadhim ◽  
Mohammed Abdulraoof Abdulrazzaq
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Aging Time ◽  
Aluminum Alloy 6061 ◽  
Alloy 6061

Effect of Multi Pass Friction Stir Processing on Surface Modification and Properties of Aluminum Alloy 6061

2019 ◽  
Vol 813 ◽  
pp. 404-410
Author(s):  
Hardik Vyas ◽  
Kush P. Mehta
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloy ◽  
Friction Stir Processing ◽  
Processing Conditions ◽  
Workpiece Material ◽  
Friction Stir ◽  
Single Pass ◽  
Aluminum Alloy 6061 ◽  
Novel Processing ◽  
Alloy 6061

In the present investigation, friction stir processing (FSP) is carried out with multi pass processing having 100 % overlap zone on the workpiece material of aluminum alloy 6061 with constant FSP parameters and varying multi pass processing conditions. Novel processing concept of multi pass FSP was performed with different rotation directions (such as clock wise and anti-clock wise directions) and processing directions (such as forward, reverse and revert directions). Surface inspection, macrographs and microstructures of the processed regions are evaluated and compared with each other. Multi-pass FSP with 100 % overlapping of two passes caused intense dynamic recrystallization and resulted in reduced grain size. Hardness of processed zone was found increased in case of two pass FSP. Minimum tensile strength was reported with double sided FSP compare to single pass and two pass FSPs. No major variations in tensile strength were reported in case of single pass and two pass FSPs.

Experimental Investigation on Joining Dissimilar Aluminum Alloy 6061 to TRIP 780/800 Steel Through Friction Stir Welding

2015 ◽  
Vol 137 (4) ◽  
Author(s):  
Xun Liu ◽  
Shuhuai Lan ◽  
Jun Ni
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Cross Sections ◽  
Failure Modes ◽  
High Strength ◽  
Tensile Tests ◽  
Weld Strength ◽  
Friction Stir ◽  
Aluminum Alloy 6061 ◽  
Alloy 6061

Friction stir welding (FSW) technique has been successfully applied to butt joining of aluminum alloy 6061-T6 to one type of advanced high strength steel (AHSS), transformation induced plasticity (TRIP) 780/800 with the highest weld strength reaching 85% of the base aluminum alloy. Mechanical welding forces and temperature were measured under various sets of process parameters and their relationships were investigated, which also helped explain the observed macrostructure of the weld cross section. Compared with FSW of similar aluminum alloys, only one peak of axial force occurred during the plunge stage. Three failure modes were identified during tensile tests of weld specimens, which were further analyzed based on the microstructure of joint cross sections. Intermetallic compound (IMC) layer with appropriate thickness and morphology was shown to be beneficial for enhancing the strength of Al–Fe interface.

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