Microstructure and damping capacity of AA6061/graphite surface composites produced through friction stir processing

Reddy, K. Venkateswara; Naik, R. Bheekya; Rao, Golla Rama; Reddy, G. Madhusudhan; Kumar, R. Arockia

doi:10.1016/j.coco.2020.04.018

Cited by 27 publications

(6 citation statements)

References 15 publications

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“…Of particular interest are carbon materials (graphene, SWCNTs, MWCNTs, fibers, etc.) as high strength (30 GPa) reinforcement agents [67,68,134,135] for next-generation automotive and aerospace materials. S. Zhang et al [68] demonstrated the microstructure and mechanical properties of nanocomposites are closely related to the energy input.…”

Section: Friction Stir Processing Of Particle-reinforced Structural A...mentioning

confidence: 99%

“…Hardening of composite aluminum alloy surfaces by FSP is performed using fine powders of the following chemical composition: Al6061-SiO 2 [58], Al-Al 2 O 3 [64,65], AA6016-(Al 2 O 3 + AlN) [91], CaCO 3 [66], Al-SiC [59,[137][138][139], Al-Ti 3 AlC 2 [61], Al-TiO 2 [62], Al-B 4 C-TiB 2 [70], Al-NbC [76], Al-V [63], Al-graphene/carbon SWCNTs/MWCNTs [67,68,134,135], and Al-TiB 2 [69]. The following compositions are used to synthesize copper alloy matrix composites by FSP: Cu-SiC [71], Cu-B 4 C [71], Cu-TiC [71], Cu-Al 2 O 3 [71], Cu-TiO 2 [72], and Cu-AlN-BN [73].…”

Section: Friction Stir Processing Of Particle-reinforced Structural A...mentioning

confidence: 99%

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A Review of Friction Stir Processing of Structural Metallic Materials: Process, Properties, and Methods

Zykova

Tarasov

Chumaevskiy

et al. 2020

Metals

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Friction stir processing (FSP) has attracted much attention in the last decade and contributed significantly to the creation of functionally graded materials with both gradient structure and gradient mechanical properties. Subsurface gradient structures are formed in FSPed metallic materials due to ultrafine grained structure formation, surface modification and hardening with various reinforcing particles, fabrication of hybrid and in situ surfaces. This paper is a review of the latest achievements in FSP of non-ferrous metal alloys (aluminum, copper, titanium, and magnesium alloys). It describes the general formation mechanisms of subsurface gradient structures in metal alloys processed by FSP under various conditions. A summary of experimental data is given for the microstructure, mechanical, and tribological properties of non-ferrous metal alloys.

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Section: Friction Stir Processing Of Particle-reinforced Structural A...mentioning

confidence: 99%

Section: Friction Stir Processing Of Particle-reinforced Structural A...mentioning

confidence: 99%

A Review of Friction Stir Processing of Structural Metallic Materials: Process, Properties, and Methods

Zykova

Tarasov

Chumaevskiy

et al. 2020

Metals

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“…In recent years, great efforts have been made regarding the damping behavior of AMCs and various methods have been proposed to improve the mechanical properties and damping properties of AMCs [13][14][15][16][17]. Theo et al [13] introduced different volume fractions of martensitic stainless steel and silicon carbide particles into Al-based matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Strengthening Mechanism and Damping Properties of SiCf/Al-Mg Composites Prepared by Combining Colloidal Dispersion with a Squeeze Melt Infiltration Process

Lin,

Sha,

et al. 2024

Materials

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SiC-fiber-reinforced Al-Mg matrix composites with different mass fractions of Mg were fabricated by combining colloidal dispersion with a squeeze melt infiltration process. The microstructure, mechanical and damping properties, and the corresponding mechanisms were investigated. Microstructure analyses found that SiCf/Al-Mg composites presented a homogeneous distribution of SiC fibers, and the relative density was higher than 97% when the mass fraction of Mg was less than 20%; the fiber–matrix interface bonded well, and no obvious reaction occurred at the interface. The SiCf/Al-10Mg composite exhibited the best flexural strength (372 MPa) and elastic modulus (161.7 GPa). The fracture strain of the composites decreased with an increase in the mass fraction of Mg. This could be attributed to the strengthened interfacial bonding due to the introduction of Mg. The damping capacity at RT increased dramatically with an increase in the strain when the strain amplitude was higher than 0.001%, which was better than the alloys with similar composition, demonstrating a positive effect of the SiC fiber on improving the damping capacity of composite; the damping capacity at a temperature beyond 200 °C indicated a monotonic increase tendency with the testing temperature. This could be attributed to the second phase, which formed more strong pinning points and increased the dislocation energy needed to break away from the strong pinning points.

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“…9,10 To manufacture surface MMCs, Mishra et al 10 established friction stir processing (FSP) based on the operating principles of friction stir welding (FSW). Many investigators have successfully explored the FSP technique to fabricate magnesium, 11 aluminium, 12,13 copper. 14,15 The traversal speed, according to Barmouz et al, 16 has a significant influence on the uniform dispersion of SiC particles in the Cu matrix.…”

Section: Introductionmentioning

confidence: 99%

Development of high strength and high electrical conductive Cu and Cu–W composite by friction stir processing: Effect of traverse speed

Naik

Reddy²,

Reddy

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this work, pure copper and copper-tungsten (Cu-W) surface composite is produced using a single pass friction stir processing (FSP) with an intention to enhance the hardness and wear resistance without impairing electrical conductivity. FSP is performed by changing the traverse speed from 50 to 200 mm/min and at a constant tool rotational speed of 600 rpm. The samples extracted from the stir zone are characterized for their microstructure, hardness, wear behaviour and electrical conductivity. The average grain size, at the stir zones, was significantly reduced (from 40 to 3 µm) after FSP. In the case of pure copper, the grain size decreased from 9 to 3 µm with an increase in traverse speed, however, grain size increased from 4 to 6 µm in the case of Cu-W composite. The hardness of FSP’ed Cu and FSP’ed Cu-W surface composite was increased in the order of 52% and 130% compared to the unprocessed copper. The wear rate significantly reduced after FSP also with an addition of W particles. A negligible reduction (1.83% IACS) in electrical conductivity was noticed for both Cu and Cu-W after FSP. This study demonstrates that the FSP is an effective approach to improve the surface mechanical properties of Cu without much impairing the electrical conductivity.

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Microstructure and damping capacity of AA6061/graphite surface composites produced through friction stir processing

Cited by 27 publications

References 15 publications

A Review of Friction Stir Processing of Structural Metallic Materials: Process, Properties, and Methods

A Review of Friction Stir Processing of Structural Metallic Materials: Process, Properties, and Methods

Strengthening Mechanism and Damping Properties of SiCf/Al-Mg Composites Prepared by Combining Colloidal Dispersion with a Squeeze Melt Infiltration Process

Development of high strength and high electrical conductive Cu and Cu–W composite by friction stir processing: Effect of traverse speed

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