Experimental studies on Friction stir processing of AZ31 Magnesium alloy

Babu, Jalumedi; Anjaiah, M.; Mathew, Anoop Kurian

doi:10.1016/j.matpr.2017.12.021

Cited by 22 publications

(9 citation statements)

References 22 publications

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“…The friction heat generation generated at 1200 rpm and 30 mm/min is the most sufficient for the grain refinement of the grain structure whereby the plastic deformation and dynamic recrystallization occurred and successfully refined to the smallest grain size without noticing any grain growth. However, the excessive friction heat generated by other processing parameters such as 1400 rpm and 40mm/min, 1400 rpm and 45 mm/min, and 1800 rpm and 30 mm/min has resulted in grain growth of the material during dynamic recrystallization [19][20][21].…”

Section: Microstructure Analysismentioning

confidence: 99%

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Optimization of Friction Stir Processing Parameters of Recycled AA 6063 for Enhanced Surface Microhardness and Tribological Properties

Teo¹,

Liew²,

Kok³

2022

Metals

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This work aims to optimize the friction stir processing parameters of recycled aluminum alloy 6063 for enhanced mechanical and tribological properties. The selected friction stir processing parameters that were used to produce friction stir processed recycled aluminum alloy 6063 are tool rotational speeds and feed rates ranging from 1200 rpm to 2000 rpm and 25 mm/min to 45 mm/min, respectively. The surface microhardness of the friction stir processed samples were measured and the friction and wear tests were conducted using a pin-on-disc tribo-tester under starved lubrication conditions. The results show that the optimum friction stir process parameters for recycled aluminum alloy 6063 are 1200 rpm and 30 mm/min. Friction stir processed recycled aluminum alloy 6063 produced by these parameters led to enhancement of microhardness and the wear resistance by 25% and 37%, and reduction of friction coefficient and grain size by about 33% and 96%, respectively.

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Section: Microstructure Analysismentioning

confidence: 99%

“…et al [17,18] also reported that increasing rotational speed increased process temperature, leading to grain coarsening in FSPed AA 6063. In the FSP of non-aluminum alloy materials, the reduction in strength and hardness were also reported and these may be due to excessive heat input leading to grain growth [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Friction Stir Processing Parameters of Recycled AA 6063 for Enhanced Surface Microhardness and Tribological Properties

Teo¹,

Liew²,

Kok³

2022

Metals

View full text Add to dashboard Cite

show abstract

“…Tool design seems to play an appreciable amount of role in determining the various factors like volume of plastic deformation, generation of ideal volume of frictional heat, regulating the flow of the material (in plasticized state) in a uniform manner etc [58][59][60][61]. As a result, sufficient amount of care & consideration must be taken, during the design of FSW tool profile.…”

Section: Fsw Tool -Geometry and Materialsmentioning

confidence: 99%

Experimental investigation on the improvement of the properties of the AZ80A Mg alloy joints using friction stir welding process

Sevvel¹,

Mahadevan²,

Sateš³

et al. 2019

FME Transactions

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An experimental investigation was conducted with the basic objective of demonstrating the feasibility of joining the AZ80A Mg alloys using the technique of friction stir welding (FSW). Good quality joints free from defects were obtained for 5mm thickness AZ80A Mg alloy flat plates at a speed of rotation of 750 rpm with a traversing speed of 1.5 mm/min, by employing a FSW tool fabricated out of M35 grade High Speed Steel(HSS). It was experimetally observed that, the nugget zone (NZ) of the defect free weldments were found with fine sized, equally spaced & uniformly distributed grains when compared with that of the parent metal. Apart from this, the heat affected zone (HAZ) lying beside the NZ was found to possess larger sized near equaxied grains due to the effect of annealing. The weld zones were found to possess regions of slight softening nature when compared to that of the parent metal, arising from the dislocation of the lower densities. Moreover, the tensile strength of the defect free weldments was found to be around 78% of the parent metal, which seems to better than that of the strengths obtained using conventional joining techniques.

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“…As a result, special care & consideration should be given, while choosing a appropriate process for joining com-ponents composed of AZ80A Mg alloy. Few & unlimited experimental works and investigations have been done on joining of wrought Mg alloys (like AZ31, AZ61, ZK60, AM60 etc) using the FSW process [42][43][44][45][46][47][48][49][50][51].…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental study on the role of tool geometry in determining the strength & soundness of wrought Az80a Mg alloy joints during FSW process

Thangaiah¹,

Sevvel²,

Satheesh³

et al. 2018

FME Transactions

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An investigation was conducted to find out the influencing role of the geometry of the FSW tool on the tensile strength, corrosion resistance, wear rate of the wrought AZ80A Mg alloy joints during the FSW process. FSW tools with two uniquely different geometries, namely stepped cylindrical shoulder tool and stepless cylindrical shoulder tool were employed at different combinations of speeds of rotation and traversing speed. Comprehensive observations & investigations were also carried out regarding the tensile strength, wear losses & corrosion resistance of the fabricated joints. The joints fabricated using stepped cylindrical shoulder tool exhibited appreciable tensile strength values at combinations of higher traversing feeds and low values of rotational speeds of the FSW tool. At the same time, the joints possessing fine sized refined grains in their nugget zone have been found to exhibit higher wear losses.

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Experimental studies on Friction stir processing of AZ31 Magnesium alloy

Cited by 22 publications

References 22 publications

Optimization of Friction Stir Processing Parameters of Recycled AA 6063 for Enhanced Surface Microhardness and Tribological Properties

Optimization of Friction Stir Processing Parameters of Recycled AA 6063 for Enhanced Surface Microhardness and Tribological Properties

Experimental investigation on the improvement of the properties of the AZ80A Mg alloy joints using friction stir welding process

Experimental study on the role of tool geometry in determining the strength & soundness of wrought Az80a Mg alloy joints during FSW process

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