Investigation on AA5083/AA7075+Al2O3 Joint Fabricated by Friction Stir Welding: Characterizing Microstructure, Corrosion and Toughness Behavior

Saeidi, Morteza; Barmouz, Mohsen; Givi, Mohammad Kazem Besharati

doi:10.1590/1516-1439.357714

Cited by 45 publications

(19 citation statements)

References 21 publications

(23 reference statements)

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“…It was found that the wear resistance increased by increasing the volume fraction of reinforcement B 4 C particles. The effect of Al 2 O 3 particles on the microstructure, corrosion properties and fracture toughness of AA7075 and AA5083 were examined by Saeidi et al [14]. It was confirmed that the presence of Al 2 O 3 particles leads to an increase in the corrosion resistance of the joint when compared to that without reinforcements.…”

Section: Introductionmentioning

confidence: 94%

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

2019

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An attempt was made to synthesize aluminum alloy (AA) 7075 matrix reinforced with 0, 1, 3, 5 wt% Al 2 O 3 particulates by using stir casting technique. Mechanical properties and wear behavior were examined. The hardness and tensile properties were obtained before and after addition of Al 2 O 3 particulates to reveal the extent improvement. Wear behavior was examined by using a pin-on-disc device to validate the improvement of the wear resistance. The results showed that adding of Al 2 O 3 reinforcement were significantly enhanced the mechanical properties. The ultimate tensile strength (UTS) and yield tensile strength (YTS) were observed 133 MPa, 35 MPa for the unfilled aluminum matrix, whereas 152 MPa and 47 MPA were achieved at 5 wt% Al 2 O 3 nanocomposites which resulted in 14.3 and 34.3% improvement, respectively. The hardness was observed 57 BHN and 72 BHN at 0 wt% and 5 wt% Al 2 O 3 respectively, resulting in an improvement of 26.3%.

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Section: Introductionmentioning

confidence: 94%

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

2019

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“…Recent research has shown that the use of reinforcement particles in FSW can improve weld properties, aid microstructure formations and reduce joint defect formation [22,50]. For instance, Saeidi et al [30] showed that the mechanical and corrosion resistances of dissimilar 5x series Al joints were improved by utilization of alumina nanoparticles. These improvements were due to dynamic recrystallization, causing the formation of a new nucleation site, thereby reducing grain growth and acting as a reinforcement against corrosive environments.…”

Section: Friction Stir Welding Of 5x Series Al Alloymentioning

confidence: 99%

“…In hardness, the joint reinforced with TiC nanoparticles had the highest hardness followed by the joint with oxide (i.e., TiO2 and ZrO2) nanoparticles; the lowest hardness value was found in the joint reinforced with SiC nanoparticles. These hardness increases by oxide nanoparticles compared to SiC nanoparticles could be due to the increase in passes, dislocation of the cell by thermal difference as well as hardness property of the oxide particle [30,31].…”

Section: Effect Of Carbide and Oxide Nanoparticles On Mechanical Propmentioning

confidence: 99%

“…With a low rotational speed and constant traverse speed, the small sized pin had better mechanical properties compared to the large sized pin [26]. Apart from the tool geometry and welding parameters, studies also suggest that using various reinforcement materials in the stir zone can prevent abnormal grain growth and lead to grain refinement, as well as enhancement of the mechanical properties of Al joints [29,30].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Review on Friction Stir Welding of Aluminium Alloys with Nanoparticles

Vimalraj

Kah

2021

Metals

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To reduce environmental impacts and ensure competitiveness, the fabrication and construction sectors focus on minimizing energy and material usage, which leads to design requirements for complex structures by joining of similar and dissimilar materials. Meeting these industrial demands requires compatible materials with improved properties such as good weight-to-strength ratios, where aluminum (Al) and its alloys are competing candidates for various complex applications. However, joining Al with fusion welding processes leads to joint deterioration. Friction stir welding (FSW) produces joints at temperatures below the melting temperature, thus avoiding flaws associated with high heat input, yet requires improvement in the resultant joint properties. Recent studies have shown that nanoparticle reinforcement in FSW joints can improve weld properties. The main focus of this study is to critically review similar and dissimilar friction stir welding of AA5083 and AA6082 with carbide and oxide nanoparticle reinforcement. The study also discusses the effect of welding parameters on reinforcement particles and the effect of nanoparticle reinforcement on weld microstructure and properties, as well as development trends using nanoparticles in FSW. Analysis shows that friction stir welding parameters have a significant influence on the dispersion of the reinforcement nanoparticles, which contributes to determining the joint properties. Moreover, the distributed nanoparticles aid in grain refinement and improve joint properties. The type, amount and size of reinforcement nanoparticles together with the welding parameters significantly influence the joint properties and microstructures in similar and dissimilar Al welds. However, research is still required to determine the strengthening mechanism used by nanoparticles and to assess other nanoparticle additions in FSW of Al alloys.

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“…FSP and conclude that the size of grains is decreased by an increment in both traveling and rotating speeds. Saeidi et al [18] used Al 2 O 3 nanoparticles during FSW of 5083/7075 aluminum sheets. They embedded nanoparticles in the joint area and reported the consequences of these nanoparticles on microstructure and toughness behavior of the weldments.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of AA6061-T6/Al<sub>2</sub>O<sub>3</sub> Reinforced Nanocomposite Using Friction Stir Welding

Singh¹

2019

AJMSP

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In the present work, attempts were made to join AA6061-T6 sheets by Friction Stir Welding (FSW) process. Al 2 O 3 nanoparticles were added into the aluminum matrix for refining the microstructure of the nugget zone (NZ) and to restrict the growth of granularly in the heat-affected zone (HAZ). In order to illustrate the influence of Al 2 O 3 nanoparticles on mechanical properties, namely ultimate tensile strength, micro-hardness distribution, and wear resistance of the welded joints, FSW was conducted with and without nanoparticles at a constant rotating velocity of 2000 rpm and transverse velocity of 70 mm/min. For characterization of microstructures, optical and scanning electron microscopes were employed. The findings revealed that Al 2 O 3 nanoparticles addition along the joint line resulted in remarkable refining of grains structure in the weld nugget zone. This was due to the pinning effect produced by nano-sized Al 2 O 3 particles which prevent the grain growth followed by recrystallization during FSW, leading to a remarkable reduction in grain size. Also, the sample with nanoparticles joined at rotating and transverse velocities of 2000 rpm and 70 mm/min showed higher tensile properties than the sample without nanoparticles. However, the employment of single FSW pass resulted in an unusual Al 2 O 3 nanoparticles distribution and void initiation at the interface between Al-matrix and Al 2 O 3 nanoparticles in the heat-affected zone resulted in the early fracture of welded joints during tensile loading. Moreover, Al 2 O 3 nanoparticles addition results in the reduction of frictional coefficient and increment in wear resistance due to fine small grains size and large distribution of hardness in NZ of friction stir welded specimens.

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Investigation on AA5083/AA7075+Al2O3 Joint Fabricated by Friction Stir Welding: Characterizing Microstructure, Corrosion and Toughness Behavior

Cited by 45 publications

References 21 publications

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

Experimental Review on Friction Stir Welding of Aluminium Alloys with Nanoparticles

Fabrication of AA6061-T6/Al<sub>2</sub>O<sub>3</sub> Reinforced Nanocomposite Using Friction Stir Welding

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Investigation on AA5083/AA7075+Al2O3 Joint Fabricated by Friction Stir Welding: Characterizing Microstructure, Corrosion and Toughness Behavior

Cited by 45 publications

References 21 publications

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al2O3nanoparticles

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al2O3nanoparticles

Experimental Review on Friction Stir Welding of Aluminium Alloys with Nanoparticles

Fabrication of AA6061-T6/Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; Reinforced Nanocomposite Using Friction Stir Welding

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Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

Mechanical and wear behavior of AA7075 aluminum matrix composites reinforced by Al₂O₃nanoparticles

Fabrication of AA6061-T6/Al<sub>2</sub>O<sub>3</sub> Reinforced Nanocomposite Using Friction Stir Welding