The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

Rahsepar, Mansour; Jarahimoghadam, Hamed

doi:10.1016/j.msea.2016.05.056

Cited by 63 publications

(17 citation statements)

References 34 publications

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“…This implies that the lowest corrosion rate ensues in the TT sample, followed by TTC and TC samples, respectively. Rahsepar and Jarahimoghadam 57 reported that a significant increase in grain boundaries (refinement) caused a decrease of corrosion potential in the friction stir processed Zr-reinforced metal matrix composite. This occurrence corroborates the findings in Table 5.…”

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confidence: 99%

Role of Mg₂Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg₂Si composite

Moharami

Razaghian

Babaei

et al. 2020

Journal of Composite Materials

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This paper investigates the effect of different tool pin morphologies on the inter-mixing capability, microstructure, mechanical properties, corrosion, fracture, and wear behaviors of the dissimilar friction stir welded AA6061-T6 alloy--Al 20wt% Mg2Si composite. Grooved shoulder tools with varying pin profiles such as tapered cylindrical, threaded tapered cylindrical, and triangular tapered pins were used for joining the base materials. The parameter combination of 80 mm/min travel speed and 1000 r/min rotation speed (at which no visible flow-induced defect was obtained) was used for this study. Among the pin profiles, the triangular tapered pin produced significantly improved intermingling/inter-material flow, fragmentation, and dispersion of the primary Mg2Si particles in the AA6061-T6/Al-Mg2Si joint. The triangular tapered tool reduced the average grain sizes of the AA6061 alloy and the Mg2Si particles from 18.4 to 4.6 µm and from 115 to 7.5 µm, respectively. Intermetallic phases of Mg2Si, AlFe, Al3.21Si0.47, and Al0.7Fe3Si0.3 are formed in the weld nugget of all the AA6061/Al-Mg2Si joints. The tensile strengths of the joints fabricated with tapered cylindrical, threaded tapered cylindrical, and triangular tapered tools are 108, 139, and 141 MPa, respectively. Abrasive wear is promoted in the joints fabricated with triangular tapered tool due to the homogeneous dispersion and fragmentation of the inherent hard Mg2Si particles. The corrosion attack is dependent on the fragmentation level of the Mg2Si phase. Triangular tapered pin tool is recommended for dissimilar Al/composite welding due to favorable tool-induced material flow, dispersion, and fragmentation of reinforcement.

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confidence: 99%

Role of Mg₂Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg₂Si composite

Moharami

Razaghian

Babaei

et al. 2020

Journal of Composite Materials

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“…The difference between pitting potential and corrosion potential (E corr ), named as passive range is the margin of safety in a specific environment. In unreinforced FSPed alloy, the corrosion potential is low compared to unprocessed alloy and the E corr decreases further with increasing number of passes [162]. High amount of grain boundaries owing to grain refinement, uniform distribution and deformationinduced defects generated by FSP are anodic to aluminum matrix, thereby reducing the corrosion potential.…”

Section: Corrosion Resistance Of Amcsmentioning

confidence: 99%

“…As a result, negligible passive range was observed for CNT reinforced composite when subjected to corrosion test in 3.5% NaCl solution [114]. The increasing number of passes during AMC fabrication reduced the amount of cathodic ZrSiO 4 in the surface and consequently enhanced the corrosion resistance [162]. The corrosion rate (CR) in mm/yr Fig.…”

Section: Corrosion Resistance Of Amcsmentioning

confidence: 99%

“…16 Scanning electron micrographs of a worn surface of TiC and B 4 C reinforced AA6360 matrix composite subjected to dry sliding wear; b worn debris [62] Fig. 17 Potentiodynamic polarization curves of Al alloy, FSPed alloy and composite specimens in 3.5% NaCl solution [114] can be calculated from the weight loss during corrosion test using the formula [162]:…”

Section: Corrosion Resistance Of Amcsmentioning

confidence: 99%

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Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Maji

Ghosh

Nath

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Aluminum matrix composites are widely used in aerospace, automotive industry and defense sector owing to its excellent weight-to-strength ratio. Friction stir processing has emerged as an excellent technique to produce particle reinforced as well as fiber reinforced aluminum matrix composites. This article is a state of the art of aluminum matrix composite fabrication by friction stir processing route. The fabrication procedure has been discussed with carefully mentioning the parameters associated with the process. Microstructures and consequent mechanical properties of the composites have been evaluated. Particular attention is given on the microstructural modification and strengthening mechanism. Also the wear and corrosion behavior of the composites has been discussed thoroughly. Finally, the article has been concluded with some suggestions toward future work.

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“…Moreover, a reduction in tool wear for extended tool life is necessary for good-quality composite surface formation. Therefore, the highest ultimate tensile strength and lowest tool wear in FSP represent the optimal level of process parameters [9,23].…”

Section: Introductionmentioning

confidence: 99%

Multi-Performance Characteristics of AA5052 + 10% SiC Surface Composite by Friction Stir Processing

2020

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In this paper, optimization of the fabrication parameters of an aluminum surface composite with respect to tensile strength and tool wear rate is reported. The surface layer was reinforced with SiC particles to improve the tribological properties of AA-5052. The Taguchi design with orthogonal array L8 was used for the experimental design, which included three processing parameters: the number of passes, rotational speed, and traversal speed. The experiment used optimal fabrication parameter searching to produce a multi-response prediction of both the tensile strength and tool wear rate. The experimental result was determined by grey relational analysis for multi-performance characteristics. Afterward, the prediction result of the optimal fabrication parameters was confirmed by repeated experiments to confirm the selection of optimal process parameters. The results revealed that the optimal fabrication parameters for multi-performance characteristics are two passes, rotational speed of 1000 revolutions per minute (RPM), and traversal speed of 30 mm/min (condition N2R1T2). These showed high tensile strength (229.90 MPa), low tool wear rate (0.0851), and a uniform distribution of SiC particles in the matrix. In addition, grey relational analysis showed that the parameter priority was 51.68% for rotational speed (the most significant process parameter), 36.18% for transversal speed, and 7.05% for the number of passes. Therefore, the grey-based orthogonal array Taguchi method can optimize multi-performance characteristics through the setting of process parameters for friction stir processing of an aluminum surface composite.

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The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

Cited by 63 publications

References 34 publications

Role of Mg₂Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg₂Si composite

Role of Mg₂Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg₂Si composite

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Multi-Performance Characteristics of AA5052 + 10% SiC Surface Composite by Friction Stir Processing

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The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

Cited by 63 publications

References 34 publications

Role of Mg2Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg2Si composite

Role of Mg2Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg2Si composite

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Multi-Performance Characteristics of AA5052 + 10% SiC Surface Composite by Friction Stir Processing

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Role of Mg₂Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg₂Si composite

Role of Mg₂Si particles on mechanical, wear, and corrosion behaviors of friction stir welding of AA6061-T6 and Al-Mg₂Si composite