Influence of Filler Wire Diameter on Mechanical and Corrosion Properties of AA5083-H111 Al–Mg Alloy Sheets Welded Using an AC Square Wave GTAW Process

Umar, Mustafa; Chandra, Mahesh; Sathiya, P.

doi:10.1007/s12666-018-1331-y

Cited by 17 publications

(4 citation statements)

References 22 publications

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“…Various aluminium alloys have been joined using constant current TIG welding and studied by numerous researchers [6][7][8][9][10][11][12]. But the main issue when welding thin parts using TIG welding is distortion.…”

Section: Introductionmentioning

confidence: 99%

“…It was claimed that the tensile strength decreased as the welding current was raised over its optimal level. Mustafa, U., et al [9] discovered small precipitates of Al 6 (Fe, Mn) at the grain boundaries that led to a high hardness value in their investigation of the corrosion and mechanical properties of TIG-joined Al-5083. Guo, Y., et al [10] investigated the effect of WS, current, and plasma gas flow rate (GFR) on Al-5083.…”

Section: Introductionmentioning

confidence: 99%

“…While in the optimization of welding parameters, only few researchers have studied PTIG welding of aluminium alloys. The detailed review of the literature makes it abundantly clear that there has been less study on the optimization of WPP to improve the microstructural and mechanical characteristics of this dissimilar AA5083-AA6082 during PTIG welding [6][7][8][9][10][11][12]. Therefore, in this study, the welding process parameters are optimized using the response surface method (RSM) to improve the mechanical and microstructural characteristics of the PTIG-joined AA5083-AA6082 alloys.…”

Section: Introductionmentioning

confidence: 99%

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Influence of pulsed TIG welding process parameters on the mechanical characteristics of AA5083 with AA6082 weldments

Jayakumar¹

2023

Mater. Res. Express

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Aluminium alloys have been widely accepted in manufacturing lightweight materials with high strength. Therefore, welding aluminium alloys is essential in industrial applications to attain complex shapes. In the present work, AA5083 and AA6082 dissimilar alloys were welded using pulsed tungsten inert gas (PTIG) welding since PTIG reduces welding defects more than TIG welding. But to get better mechanical strength on the weld joints, PTIG welding process parameters must be optimized. During PTIG welding, peak current, pulse frequency, and welding speed were chosen as the input parameters, and ultimate tensile strength (UTS) and microhardness were measured as output responses in the current investigation. The UTS of the welded AA5083-AA6082 alloys was predicted using an empirical relationship. For the design of experimental trials, a three-variable, five-stage central composite design is adopted. The findings indicate that the welding speed impacts tensile strength the most, followed by the peak current and the pulse frequency has the least impact. Therefore, the peak current of 197 A, pulse frequency of 4.9 Hz, and welding speed of 181 mm/min was identified as the optimal welding parameters to weld AA5083 and AA6082 alloys with high UTS values. The hardness analysis on the optimized welded samples showed that the lowest hardness values of 40 to 50 Hv0.5 and the highest value of 90 to 100 Hv0.5 were observed on the HAZ of the AA6082 side of the weldment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of pulsed TIG welding process parameters on the mechanical characteristics of AA5083 with AA6082 weldments

Jayakumar¹

2023

Mater. Res. Express

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“…Aluminium alloys are among the lightweight material which has excellent properties and high strength to weight ratio resulting as better alternative for replacing heavy materials [1]. Among the different Al alloys available, AA5052-H32 [2] and AA5083-H111 [3] are used in various industries such as marine, aerospace, desalination plants and automotives as plates, structural parts, fuel tanks, welded structures etc which demands for good weldability and mechanical properties. Hence an attempt is made to fabricate these two different Al Mg alloys.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Behavior of Sc Doped Filler Rod in TIG Welding Dissimilar Al Mg Alloys

D.¹,

Subbaiah²

2021

JNMES

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The present work reports about the effect of cast scandium doped ER5356 filler rod in Tungsten Inert Gas welding of dissimilar Aluminium Magnesium alloys. The grain refinement effect on weld microstructure by transition metal scandium was investigated with optical and scanning electron microscope. Additionally, XRD analysis, tensile strength (global and component joint) and microhardness were tested on weld samples. The microstructural examination in weld fusion zone observed fine grain size and suppressed dendrite arm spacing. The formation of Al3Sc precipitate in weld fusion zone due to scandium inclusion in filler was identified and resulted in improving the weld strength significantly. The higher joint efficiency of 92.5% was achieved in the global joint of weld samples. The failure location of global joint tensile samples identified the weld fusion zone is stronger than AA5052 base material. Further weld strength was evaluated with component joint by micro tensile test, which results in 70MPa enhancement in UTS values and validating the accurate weld strength. However, the elongation of the tensile test sample reduced marginally for the weld. The fracture mechanism of the weld joint observes decrease in ductility. The significant increase in hardness of the weld fusion zone was evident due to doping of scandium compared to the other zones of the weld.

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Influence of medium- and high-entropy alloy fillers on microstructures and corrosion behaviour of AA5083 plates joined by GTAW process

Kaviyarasan,

Soundararajan,

Sivasankaran

et al. 2024

J Mater Sci

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Influence of Filler Wire Diameter on Mechanical and Corrosion Properties of AA5083-H111 Al–Mg Alloy Sheets Welded Using an AC Square Wave GTAW Process

Cited by 17 publications

References 22 publications

Influence of pulsed TIG welding process parameters on the mechanical characteristics of AA5083 with AA6082 weldments

Influence of pulsed TIG welding process parameters on the mechanical characteristics of AA5083 with AA6082 weldments

Microstructure and Mechanical Behavior of Sc Doped Filler Rod in TIG Welding Dissimilar Al Mg Alloys

Influence of medium- and high-entropy alloy fillers on microstructures and corrosion behaviour of AA5083 plates joined by GTAW process

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