Microstructure and its stability at elevated temperature in friction stir seam welded dissimilar joints of 5083 and 6061 aluminium alloy plates

Shibayanagi, Toshiya; Maeda, Masakatsu

doi:10.1080/09507110802462131

Cited by 3 publications

(3 citation statements)

References 10 publications

(7 reference statements)

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“…In dissimilar friction stir welds, no difference is observed, except in the well mixed nugget region where successive fine bands of the two materials are formed. 2,3 The similar welds exhibit fairly symmetrical temperature histories when comparing the advancing and retreating side (see Table 1 and former study). 19 Nevertheless, fracture in the 6005A-6005A weld systematically occurs in the HAZ on the advancing side of the weld due to slightly lower s y and h. Hence, the retreating side is stronger in this similar weld.…”

Section: Discussionmentioning

confidence: 64%

“…Indeed, several controversies still remain in the literature concerning the material flow during welding, temperature distribution and the optimisation of the weld properties. [1][2][3][4][5][6][7][8][9][10][11][12][13] Welding cheap and ductile 6xxx Al alloys with high strength 2xxx Al alloys is desirable for instance in specific aeronautical applications. Now, 6xxx and 2xxx series Al alloys are age hardenable alloys, and the mechanical properties are thus tremendously affected by the welding process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparing similar and dissimilar friction stir welds of 2017–6005A aluminium alloys

Simar

Jonckheere

Deplus

et al. 2010

Science and Technology of Welding and Joining

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Similar and dissimilar friction stir welds made of aluminium alloys 2017-T6 and 6005A-T6 are compared in terms of heat inputs, temperatures, material flow distributions and resulting local and overall tensile properties. Similar welds are systematically hotter and weaker than the dissimilar welds. Predictions of a three-dimensional finite element model of the tensile test transverse to the weldline are assessed towards local deformation fields measured by digital image correlation. Deformation systematically localises on the weakest heat affected zone, which is on the 6005A side in the dissimilar welds.

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Section: Discussionmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Comparing similar and dissimilar friction stir welds of 2017–6005A aluminium alloys

Simar

Jonckheere

Deplus

et al. 2010

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…The traditional fusion welding process is prone to defects such as welding hot cracks, inclusions, porosity, alloy element burning, and welding residual deformation, which will significantly reduce the welding quality. Compared with fusion welding, friction stir welding has the advantages of solid-state connection, lower production cost, and excellent joint performance in aluminum alloy welding [6,7,8]. If the welding parameters are not properly controlled, it will easily lead to changes in physical processes such as material heat generation, plastic flow state and even lead to welding defects [9,10].…”

Section: Introductionmentioning

confidence: 99%

Temperature Monitoring and Material Flow Characteristics of Friction Stir Welded 2A14-t6 Aerospace Aluminum Alloy

et al. 2019

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Aiming at the problems that the temperature in the welding area of friction stir welding (FSW) is difficult to measure and the joints are prone to defects. Hence, it is particularly important to study the material flow in the welding area and improve the welding quality. The temperature of the tool shoulder and the tool pin was monitored by the wireless temperature measuring system. The finite element model of friction stir welding was established and the welding conditions were numerically simulated. The flow law of material of the friction stir welding process was studied by numerical simulation. The material flow model was established by combining the microstructure analysis results, and the forming mechanism of the defects was analyzed. The results show that the temperature in the welding zone is the highest at 1300 rpm, and the temperature at the tool shoulder is significantly higher than that at the tool pin in the welding stage. When high-rotation speeds (HRS) are chosen, the material beneath the tool shoulder tends to be extruded into the pin stirred zone (PSZ) after flowing back to the advancing side. This will cause turbulence phenomenon in the advancing side of the joint, which will easily lead to the formation of welding defects. In the future, temperature monitoring methods and the flow model of material can be used to optimize the welding parameters.

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Methodological approach for best tool geometry determination in friction stir welding process

Sarma

Srikanth

Venkateshwarlu

2021

Materials Today: Proceedings

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Microstructure and its stability at elevated temperature in friction stir seam welded dissimilar joints of 5083 and 6061 aluminium alloy plates

Cited by 3 publications

References 10 publications

Comparing similar and dissimilar friction stir welds of 2017–6005A aluminium alloys

Comparing similar and dissimilar friction stir welds of 2017–6005A aluminium alloys

Temperature Monitoring and Material Flow Characteristics of Friction Stir Welded 2A14-t6 Aerospace Aluminum Alloy

Methodological approach for best tool geometry determination in friction stir welding process

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