Microstructural and Mechanical Properties of Walking Friction Stir Spot Welded AA 6061-T6 Sheets

Venukumar, S.; Baby, Bibin; Muthukumaran, S.; Kailas, Satish V.

doi:10.1016/j.mspro.2014.07.081

Cited by 23 publications

(9 citation statements)

References 9 publications

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“…(1). = × × (1) where N = number of viable cells (per 1 cm 2 of test piece) C = number of colonies (CFU) D = dilution factor V = volume of broth used to wash out A = surface area of covering film (cm 2 ) CFU/cm 2 was used to calculate antibacterial activity and percent reduction of bacteria as shown in Eq. 2and 3, respectively.…”

Section: Antibacterial Standard Testmentioning

confidence: 99%

“…Because of its alloying elements, AA6061 shows good corrosion resistance, machinability, weldability and good anodizing response. It is extensively used in many applications such as household structure, cell-phone case and automobile [1][2][3]. Although AA6061 has good corrosion resistance, corrosion problem still occurs due to intermetallic particles in the alloy.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial and Corrosion Resistance Properties of Anodized AA6061 Aluminum Alloy

Pornnumpa¹,

Jariyaboon²

2019

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Anodizing is one of the surface treatments for aluminum and its alloys. It is commonly used to increase corrosion resistance and mechanical properties. This technique is also applied for decorative purpose. Therefore, anodized aluminum alloys are widely used in many applications such as household structure, cell-phone case, automobile and aircrafts. Anodic aluminum oxide (AAO) structure, which has a pore at the center of each hexagonal cell arrangement, is created after anodizing process. To further enhance the property of anodized aluminum alloys, antibacterial property can be produced on AAO surface by deposition of nanoparticles into its pore structure. In this work, AA6061-T6 aluminum alloy was anodized at 12 V using 20%w/v H2SO4 at temperature of 17±1°C for 30 minutes. AgNO3 solution was used for producing Ag nanoparticles. Effects of AgNO3 concentrations on antibacterial and corrosion resistance properties of anodized AA6061 aluminum alloy were studied. Antibacterial property was investigated on both gram-positive (S.aureus) and gram-negative (E.coli) bacteria according to JIS Z 2801 standard test for three months after exposure to ambient environment. 100% reduction of S.aureus was achieved, whereas 97.3% reduction of E.coli was obtained when using 1mM AgNO3. However, the deposition of Ag nanoparticles resulted in a slight increase in corrosion susceptibility.

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Section: Antibacterial Standard Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antibacterial and Corrosion Resistance Properties of Anodized AA6061 Aluminum Alloy

Pornnumpa¹,

Jariyaboon²

2019

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“…Material for work piece used for welding and testing in this study was Aluminum alloys AA5052-H112 due to commonly used in manufacturing especially in automotive car body (Kumbhar et al, 2012), (Venukumar et al, 2014). This alloy has a good strength, formability and corrosion resistance .…”

Section: Methodsmentioning

confidence: 99%

Optimization of Process Parameters on Tensile Shear Load of Friction Stir Spot Welded Aluminum Alloy (Aa5052-H112)

Armansyah

Chie

2018

Sinergi

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Optimization of the process was still the issue in manufacturing. Investigation on the process parameters that effects to the property of welded structure were necessary. In this study, the AA5052-H32 sheets of 2 mm thick were welded using friction stir spot welding (FSSW) and tested via tensile shear load test to investigate the influence of spindle speed, tool depth, and dwell time to the tensile shear load of the joints. The result shows that in every set of parameter combination, exhibit interesting influence to the tensile shear load. The effect of spindle speed of 1000 rpm shown the good property in average 18.33 KN especially at tool depth of 3.5 mm. Furthermore, the effect of tool depth brought significant effect to the tensile shear load especially at 3.5 mm for each set of spindle speed and dwell time. The set of dwell time to parameter combination had no significant effect to the tensile shear load. The good tensile shear load could be achieved in the range of 17.7-19.3 KN at 3.5 mm of plunge depth and 1000 rpm of spindle speed, where the best one was 19.3 KN at 7s of dwell time.

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“…Lee et al [17] reported that the pin angle of 5°, dwell time of about 4.5-5.5 seconds, rotational speed of 1000-1200 are optimum FSSW condition for expected defect-free FSSW on AA6061. Venukumar et al [18][19][20] studied the effect of different methods of FSSW on aluminum alloy 6061-T6. They attempted a walking FSSW method and suggested that welds obtained at the tool rotational speed of 900 rpm have better static shear strength when compared to the conventional FSSW.…”

Section: Introductionmentioning

confidence: 99%

Influence of SiC Nanoparticle Reinforcement on FSS Welded 6061-T6 Aluminum Alloy

Suresh¹,

Venkatesan²,

Natarajan

2018

Journal of Nanomaterials

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The current research focuses on the mechanical properties and the microstructural behavior of friction stir spot-welded 6061-T6 aluminum alloy reinforced with SiC nanoparticles. Weld samples are produced with and without the addition of SiC nanoparticles to the joint. The microhardness and lap shear strength of the joints are investigated. The cross section of welds and the fracture surfaces are studied by a stereo zoom microscope. Microstructure and distribution of reinforced particles in the stir zone are examined through optical and scanning electron microscopies. It is observed that the reinforcement of SiC nanoparticles significantly influences the grain size and hence the weld properties. The highest hardness of 93 HV and the maximum shear load of 2650.5 N are observed at the stir zone of the sample with 29% SiC. All the weld samples exhibit the similar “W” shape hardness profile. From the observed results, the selected set of process parameters is found adequate in order to fabricate sound Al/SiC composite joints.

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Microstructural and Mechanical Properties of Walking Friction Stir Spot Welded AA 6061-T6 Sheets

Cited by 23 publications

References 9 publications

Antibacterial and Corrosion Resistance Properties of Anodized AA6061 Aluminum Alloy

Antibacterial and Corrosion Resistance Properties of Anodized AA6061 Aluminum Alloy

Optimization of Process Parameters on Tensile Shear Load of Friction Stir Spot Welded Aluminum Alloy (Aa5052-H112)

Influence of SiC Nanoparticle Reinforcement on FSS Welded 6061-T6 Aluminum Alloy

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