Effect of nano-Sized Al<sub>2</sub>O<sub>3</sub> Particles on Microstructure and Mechanical Properties of Aluminum Matrix Composite Fabricated by Multipass FSW

Rani, Preety; Misra, R.S.; Mehdi, Husain

doi:10.1177/09544062221110822

Cited by 13 publications

(4 citation statements)

References 51 publications

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“…Therefore, a homogeneous and fine microstructure was achieved during MPFSP, which resulted in improved mechanical properties. The 5P FSP exhibited higher mechanical properties compared to 1P, 2P, 3P, and 4P FSP/Al2O3 [51,52]. In 1P FSP, the bonding between the surrounding Al-alloy and agglomerated particles was found to be the weakest.…”

Section: Microstructure Analysismentioning

confidence: 90%

Untitled

2023

IJREI

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The base metal, AA7475, initially contained nanoparticles of SiC within a coarse dendritic structure. The multipass FSP (MPFSP) process successfully broke these coarse and dendritic clusters, resulting in a homogenous microstructure in the stir zone. This inhibition led to a continual reduction in grain size. The presence of SiC reinforcement particles also played a role in imbvproving the microstructure and tensile properties of the MPFSP/SiC composite. The optimal process parameters for MPFSP/SiC on AA7475 were identified as a rotational tool speed of 1500 rpm, welding speed of 40 mm/min, and a tilt angle of 2°. As the number of FSP passes increased, the agglomeration of SiC particles reduced, further enhancing the dispersion. Before MPFSP/SiC, the base metal AA7475 exhibited a tensile strength of 410±5 MPa and a % strain of 10.83±0.3. However, after MPFSP/SiC, the tensile strength increased with the number of FSP passes. The highest tensile strength of 521±8 MPa was observed after the 5 th pass of FSP. This increase in tensile strength was attributed to the presence of fine grains formed through the DRX mechanism during the MPFSP process.

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Section: Microstructure Analysismentioning

confidence: 90%

Untitled

2023

IJREI

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“…Table 3 displays the JC coefficients for AA7075 and AA5083. The physical characteristics of the alloys AA5083 and AA7075 are summarized in table 4.…”

Section: Model Descriptionmentioning

confidence: 99%

“…The most startling welding characteristics of different alloys are found in the current friction welded joining procedure, called friction stir welding (FSW) [1][2][3]. In a wide range of industrial applications, including those in the shipping, automotive, aerospace, marine, and robotics industries, FSW triumphs over all other traditional welding techniques [4][5][6]. FSW is one of the solid-state welding techniques that can produce joints between dissimilar alloys more efficiently than fusion welding techniques [7,8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Akbari

RahimiAsiabaraki

Aliha³

2023

Eng. Res. Express

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In this study, the friction stir welding between AA5083 and AA7075 is modeled using numerical methods, and the role of parameters affecting the process, such as welding speed and rotation speed on material flow, temperature, and strain, is studied. The temperature, strain, and material mixing were analyzed while welding AA7075 to AA5083 alloys using a Coupled Eulerian-Lagrangian (CEL) approach. It was discovered that the CEL approach had accurately anticipated the mixing of materials in the stir zone (SZ) by comparing the SZ of the samples fabricated experimentally and modeled by simulation. Results show that the temperature and strain increase dramatically as the rotation speed increases from 500 to 900 rev/min. The material flow obtained from the simulation shows that with increasing rotational speed or decreasing welding speed, AA7075 is more stretched towards AA5083 in the sheet's higher surfaces, indicating an increase in material flow intensity. Better material mixing and increased material flow allowed for the achievement of the maximum tensile strength at the welding and rotation speeds of 36 mm/min and 900 rev/min.

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“…However, when the conventional fusion welding process was applied to weld aluminum and its alloys considerable attention is required due to this problem such as the decrease in strength and formation of defects (Trapped porosity, solidification cracking, and liquation cracking) were the most common [51,[59][60][61][62]. Moreover, as mentioned above the problems associated with the welding of aluminum and its alloys are the several difficulties that would also come across when aluminum-based metal matrix composites reinforced with ceramic particles are joined using the fusion welding processes.…”

Section: Joinability Of Aluminum Alloys and Fsw-based Mmr Butt Jointsmentioning

confidence: 99%

Nanoparticles reinforced joints produced using friction stir welding: a review

Singh¹

2023

Eng. Res. Express

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Fusion welding processes do not find attention due to their restriction to use for certain grades of materials and alloys. Friction Stir welding (FSW) or the solid-state joining process has proven to be a more efficient process for the welding of metal-matrix reinforced composite butt joints by employing various combinations of reinforcement particles and base matrices compared to the fusion welding process. Due to the solid-state nature of the FSW process, no melting of base material would occur which leads to no toxic fumes, low energy consumption, environmentally friendly, and ease of operation that makes FSW a more versatile welding process for aerospace, automobile, and transportation industries. However, the challenges in joining metal matrix reinforced composites remain even with a substantial advancement in the process made during current years. This review article outlines a brief overview of the state of art of metal matrix reinforced welds joined using FSW. More emphasis with critical evaluation has been done on the (a) macrostructural and microstructural characteristics of a metal matrix reinforced welds which merely depend on the plasticized material flow and reinforcement particles behavior and its difficulty for uniform distribution of reinforcement particles in the weld zone based on the combination of reinforcement particles and the metal matrix materials, (b) assessment of mechanical properties of the metal matrix reinforced welds those are directly interdependent on the selection of process parameters by which the grain refinement and their reinforcement particles distribution depend that leads to changes in such properties, and (c) fracture and wear properties of the metal matrix reinforced welds which again depends on the reinforcement particles and the metal matrix materials combination. The conclusions of this review are ended up with recommendations for the directions for future research.

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Effect of nano-Sized Al₂O₃ Particles on Microstructure and Mechanical Properties of Aluminum Matrix Composite Fabricated by Multipass FSW

Cited by 13 publications

References 51 publications

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Untitled

Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Nanoparticles reinforced joints produced using friction stir welding: a review

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Effect of nano-Sized Al2O3 Particles on Microstructure and Mechanical Properties of Aluminum Matrix Composite Fabricated by Multipass FSW

Cited by 13 publications

References 51 publications

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Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Nanoparticles reinforced joints produced using friction stir welding: a review

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Effect of nano-Sized Al₂O₃ Particles on Microstructure and Mechanical Properties of Aluminum Matrix Composite Fabricated by Multipass FSW