Friction stir welding of thick plates of aluminum alloy matrix composite with a high volume fraction of ceramic reinforcement

Cioffi, F.; Fernández, Rafael Ramos; Gesto, D.; Rey, P.; Verdera, D.; González-Doncel, Gaspar

doi:10.1016/j.compositesa.2013.07.011

Cited by 70 publications

(34 citation statements)

References 33 publications

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“…The inhomogeneous distributions of reinforcement materials in the microstructure of the BM can affect the isotropy of mechanical properties. It is accepted that the stirring action during FSW causes a break up of clustered reinforcement and homogenous distribution in the weld zone due to the mixing of material and severe plastic deformation [29,30,36,37,40,44]. In contrast, Periyasamy et al [42] reported that the NZ of AA6061/SiC/10p joints fabricated at a heat input below 1,039 J/mm consisted of coarsely clustered SiC particles.…”

Section: Microstructure Of Amc Jointsmentioning

confidence: 93%

“…can be attributed to insufficient heat input or inappropriate flow of plasticized metal. Cioffi et al [40] identified clearly the appearance of tunnel defect in the AS of FSW AA2124/SiC/25p at a low rotation speed of 300 rpm. The tunnel defect is less likely to happen as the rotation speed increases to 800 rpm which produces defect free joints.…”

Section: Macrostructure Of Amc Jointsmentioning

confidence: 97%

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A review of friction stir welding of aluminium matrix composites

et al. 2015

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As a solid state joining process, friction stir welding (FSW) has proven to be a promising approach for joining aluminium matrix composites (AMCs). However, challenges still remain in using FSW to join AMCs even with considerable progress having been made in recent years. This review paper provides an overview of the state-of-the-art of FSW of AMC materials. Specific attention and critical assessment have been given to: (a) the macrostructure and microstructure of AMC joints, (b) the evaluation of mechanical properties of joints, and (c) the wear of FSW tools due to the presence of reinforcement materials in aluminium matrices. This review concludes with recommendations for future research directions.

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Section: Microstructure Of Amc Jointsmentioning

confidence: 93%

Section: Macrostructure Of Amc Jointsmentioning

confidence: 97%

A review of friction stir welding of aluminium matrix composites

et al. 2015

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“…Second type of graph shows the lowest hardness at the HAZ, and highest value in the NZ as shown in the Fig. 6 [20,23,25,36]. In the microstructural analysis it was observed that the microstructure of TMAZ show the transition of base metal into nugget zone.…”

Section: Micro Hardness Of Jointsmentioning

confidence: 90%

“…This will affects the strength characteristics of the AMCs, which is different at different location, results in anisotropy mechanical properties. Stirring action and plastic deformation caused by the rotating pin, separates the clustered particles and redistributes the particles uniformly in the stirred zone [20,23,[25][26][27]. Due to the stirring action, the edges of the reinforced particles are rounded off and the size of the particles decreases compared to the parent material.…”

Section: Microstructure Of Fsw Zonementioning

confidence: 99%

Friction stir welding of Aluminium matrix composites – A Review

et al. 2018

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Friction stir welding (FSW) is established as one of the prominent welding techniques to join aluminium matrix composites (AMCs). It is a solid state welding process, takes place well below the melting temperature of the material, eliminates the detrimental effects of conventional fusion welding process. Although the process is capable to join AMCs, challenges are still open that need to be fulfill to widen its applications. This paper gives the outline of the friction stir welding technique used to join AMCs. Effect of process variables on the microstructure and mechanical properties of the joints, behavior of reinforcing materials during welding, effect of tool profiles on the joint strength are discussed in detail. Few improvements and direction for future research are also proposed.

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“…They showed that inappropriate material flow in the stirred zone due to either less heat input at low rotation speed of 700-900 rpm or excessive heat at the higher rotation speed of 1300 -1400 rpm, results in tunnel defects. Similarly Cioffi et al [23] observed the formation of tunnel defects at low rotation speed and defect is disappeared as the rotation speed is increased to 800 rpm. …”

Section: Onion Ringsmentioning

confidence: 99%