Pin Diameter Effect on Microstructure and Mechanical Properties of Dissimilar Friction Stir Lap Welding Aluminum Alloy 6061-T6 to Dual Phase Steel

Helal, Yazid; Boumerzoug, Zakaria

doi:10.12776/ams.v24i2.1049

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…The work hardening exponent is a measure of a metal's ability to work harden; the larger its magnitude, the greater the work hardening for a given amount of plastic deformation [25,32]. The higher the value (n), the more the material can deform before instability and can be stretched further before the onset of straining [28,[33][34][35][36][37][38]. From Figure 11, it can be seen that the hardening exponent of the AISI 304L joint, for a friction time of 7 s, is higher than that of the AISI 304L base metal, which corresponds to a higher hardening.…”

Section: Evolution Of Curing Parameters As a Function Of Friction Timementioning

confidence: 99%

Thermomechanical effect on the properties of stainless steels using rotative friction welding: an experimental study on 304L and 316L grades

Arzour,

Amara,

Suleiman

et al. 2023

Int J Adv Manuf Technol

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The main objective of this work is to analyze structural hardening by direct friction welding on two austenitic materials of the AISI 304L and AISI 316L series, that were welded separately (similar welding) followed by a combined (mixed) welding. The friction welding parameters such as rotation speed, applied pressure (friction and forging), and holding time were carefully selected and optimized. Forty welding operations and thirty post-welding nominal tensile tests were performed, with the sole purpose of obtaining the rational curves. To achieve this objective, the results of the tensile tests were collected and analyzed. The rational curves allowed us to proceed by classical analytical modeling to quantify the effect of welding on the work-hardening behavior of the two stainless steel samples. The microstructure of each welded joint condition was analyzed and compared to each other.

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Section: Evolution Of Curing Parameters As a Function Of Friction Timementioning

confidence: 99%

Thermomechanical effect on the properties of stainless steels using rotative friction welding: an experimental study on 304L and 316L grades

Arzour,

Amara,

Suleiman

et al. 2023

Int J Adv Manuf Technol

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“…It produces joints using a non-consumable tool to soften the metal by generating heat due to friction between the rotating tool and the workpieces. The material is then deformed plastically to create a significant welded joint [5,6,7]. On the other hand, DDFW is used to fabricate most mechanical parts, such as turbine shafts, truck axles, piston rods, electrical connections, and cutting tools [8].…”

Section: Introductionmentioning

confidence: 99%

Metallurgical investigation of direct drive friction welded joint for austenitic stainless steel (AISI 316)

Hassan

Cheniti

Belkessa

et al. 2023

Acta Metall Slovaca

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The present study investigates the metallurgical behavior of direct-drive friction-welded (DDFW) joints for high Cr, Ni, and Mo steel (AISI 316). Macro-microscopic, microhardness, and X-ray diffraction (XRD) were conducted. The results for the macroscopic view showed that the narrow welding center did not exceed 600 µm and there were no macro cracks or defects, indicating a uniform structure. The microstructure exhibited a significant welded joint interface with microcavities and a grain refinement of 10 µm, about three times smaller than the grain size of AISI 316, due to the creation of a highly plastically deformed zone (HPDZ), while the thermo-mechanically affected zone (TMAZ) formed in the neighboring area with a grain growth of about 100 µm, relatively enlarged three times compared to AISI 316 and time time related HPDZ. Thus, the high level of microhardness was investigated at the welding center and low values in the neighboring area were caused by the formation of the HPDZ and TMAZ, respectively. XRD also illustrated the concentration of gamma iron at the 111 level due to the grain refinement resulting from high plastic deformation.

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“…The thickness of intermetallic compounds (IMC) layer increases from 7.7 to 58.1 μm with decreasing welding speedsand has a significant effect on the strengths of the joints [13]. Fatigue properties of the welded joints of AA 3003-H14 aluminum alloy were evaluated based on the superior tensile properties for FSW at 1500 rpm rotational speed and 80 mm/min welding speed with 89% welding efficiency.…”

Section: Introductionmentioning

confidence: 99%

Prediction of the temperature recorded in lap joint at during the friction stir welding

2023

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The objective of the present work is the modelling of parameters influencing the temperature during friction stir lap welding. The area of physical understanding is the influence of the tool pin geometry and material on the temperature field, microstructural refinement, resulting material flow, and the influence of flow variations on the subsequent mechanical properties of FSW butt lap joints in aluminium 3003 Alloy. The results obtained allowed us to propose a mathematical model to study the interactions between different factors. Thus, it was shown that the most influential parameters are respectively the rotational speed and weld speed.

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Pin Diameter Effect on Microstructure and Mechanical Properties of Dissimilar Friction Stir Lap Welding Aluminum Alloy 6061-T6 to Dual Phase Steel

Cited by 5 publications

References 34 publications

Thermomechanical effect on the properties of stainless steels using rotative friction welding: an experimental study on 304L and 316L grades

Thermomechanical effect on the properties of stainless steels using rotative friction welding: an experimental study on 304L and 316L grades

Metallurgical investigation of direct drive friction welded joint for austenitic stainless steel (AISI 316)

Prediction of the temperature recorded in lap joint at during the friction stir welding

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