Mechanical Properties and Microstructure Evolution Of AA6082/Sic Nanocomposite Processed by Multi-Pass FSP

Hashmi, Abdul Wahab; Mehdi, Husain; Mishra, R. S.; Mohapatra, Prabhujit; Kant, Neeraj; Kumar, Ravindra

doi:10.1007/s12666-022-02582-w

Cited by 34 publications

(5 citation statements)

References 69 publications

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“…Increase in mechanical strength of developed copper composites with respect to increase in rotational speed can also be attributed to refinement of grains due to rigorous stirring action during FSP of substrate metal. Along with this it can also be stated that high rotational speed leads to generation of sufficient heat for the creating a defect free stir zone increasing the mechanical strength of the developed surface composites [37,38].…”

Section: Effect Of Rotational Speed On Propertiesmentioning

confidence: 92%

“…This increase in mechanical strength can be mainly due to heat generated during FSP. At lower traverse speed (40 mm min −1 ), heat generated due to friction will be comparatively higher when compared with 80 mm min −1 traverse speed [38,40]. Higher frictional heat generated during FSP of copper surface composites dispersed with hybrid ceramic particles will lead to softening of copper substrate henceforth declining the mechanical strength.…”

Section: Effect Of Traverse Speed On Propertiesmentioning

confidence: 99%

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Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Vinoj,

Raja,

Thankachan

et al. 2023

Eng. Res. Express

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This research deals with investigating the effects of amount of hybrid reinforcement, rotational speed and traverse speed on the mechanical and wear characteristics of copper surface composites fabricated via friction stir processing. Aluminum oxide and boron carbide at 1:1 ratio was dispersed onto copper substrate at various volume fractions (5, 10 and 15 vol. %) at different traverse speed (40, 60 and 80 mm/min) and rotational speed (800, 950 and 1300 rpm). Microstructural characterization of developed copper surface composites dispersed with varying volume fraction of hybrid reinforcement proved reduction in grain size and homogenous distribution of ceramic particles. Results stated that the percentage of particles dispersed, traverse speed and rotational speed have high impact in defining the property of developed copper surface composites. A positive trend in mechanical strength was observed throughout the study. Increase in hybrid reinforcement dispersion and traverse speed increases the microhardness value of developed surface composites while increase in rotational speed leads to reduction in microhardness value.

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Section: Effect Of Rotational Speed On Propertiesmentioning

confidence: 92%

Section: Effect Of Traverse Speed On Propertiesmentioning

confidence: 99%

Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Vinoj,

Raja,

Thankachan

et al. 2023

Eng. Res. Express

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“…It shows that the grain refinement supplied by B 4 C particles has reduced the composite's ductility. 61 The FSP shows a homogenous distribution of B 4 Cparticles and tiny dimples that rise in tensile strength and shift to ductility in nature as the volume fraction increases (Figure 10(d) B2). The fracture surface of friction stir processed AA6061/B 4 C surface composite does not exhibit a large number of dimples, and the surface is observed to be flat, indicating that the plastic deformation of FSPAMCs has decreased as a result of the higher volume percentage of B 4 C particles (Figure 10(e) B3) and (Figure 10(f) B4).…”

Section: Morphology Of Fracturesmentioning

confidence: 99%

Investigation of the microstructure, mechanical and wear performance of friction stir-processed AA6061-T6 plate reinforced with B₄C particles surface composite

Abdelhady

Elbadawi²,

Zoalfakar

2023

Journal of Composite Materials

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In this work, friction stir processing (FSP) was used to successfully embed boron carbide (B4C) particles into an aluminum matrix (AA6061-T6). Four specimens of aluminum 6061 composite reinforced with 4%, 6%, 8%, and 10% volume fraction of B4C were manufactured. The effects of B4C particles volume fraction on microstructure, mechanical and wear properties are investigated. The microstructural investigations demonstrated that a rise in the volume % of reinforcement greatly decreased the matrix grain size. The manufactured AA6061-T6 loaded with B4C surface composites demonstrated homogeneous B4C particle dispersion, with no significant particle clustering in the stir zone. In addition, it was established that increasing the volume fraction of B4C particles promoted grain refinement, increased hardness, and tensile strength. X-ray diffraction (XRD) was used to identify the reinforcement dispersion. For AA6061-T6 with 10% B4C particles, a maximum hardness value of 163 HV was obtained in the stir zone. Maximum yield strength of 165 MPa and ultimate tensile strength of 220 MPa were attained by AA6061-T6 with 10% B4C particles, which is an improvement of 21% over the specimen FSP without reinforcement. The strengthening of the grain refining was attributed for the increase in hardness and strength. The ductility was reduced by the incorporation of more B4C particles. Comparing the surface composite loaded with B4C to unreinforced friction stir processing and AA6061-T6 as received, it demonstrated superior wear resistance.

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“…Friction stir processing (FSP) is a novel solid-state technique that enables the production of MMCs with a refined microstructure and uniform reinforcement distribution [6,7]. The role of refinement depends on additional powder (metal or ceramic) in the total metal matrix or modification of only the metal surface that is exposed to loads [8][9][10][11]. The distribution of additional powder in FSP depends on the specific parameters and 2 of 18 techniques employed during the processing operation and the material's characteristics.…”

Section: Introductionmentioning

confidence: 99%

AA5754–Al2O3 Nanocomposite Prepared by Friction Stir Processing: Microstructural Evolution and Mechanical Performance

Mohammed,

Abdullah,

Rohim

et al. 2024

JMMP

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The utilization of Al2O3 nanopowder to reinforce AA5754 aluminum alloy through blind holes employing the friction stir processing (FSP) technique to produce an aluminum matrix nanocomposite is explored in this paper. Motivated by the necessity to enhance the strength and ductility of welded joints, the impacts of varying the tool rotational speed (rpm) and blind hole diameter on the microstructure and mechanical properties of the joints are investigated. Experimental characterization techniques including SEM, optical microscopy, microhardness, and tensile tests were employed to analyze the welded joints produced under different processing parameters (tool rotational speeds of 910, 1280, and 1700 rpm, and blind hole diameters of 0, 1, 1.5, and 2 mm). Comparative analyses were conducted against base metal properties and joints without reinforcement powder. It was found that the addition of nanopowder resulted in a decrease in the maximum generated heat during FSP, while also reducing the stir zone size compared to samples without nanopowder. Moreover, enhancements in both the strength and ductility of the joints were observed with the incorporation of Al2O3 nanoparticles. The optimal combination of welding conditions, observed at 1280 rpm rotational speed and 1.5 mm hole diameter, yielded a remarkable ultimate tensile strength of 567 MPa, accompanied by a hardness of 45 HV. These results underscore the potential of nano-Al2O3 reinforcement in significantly improving the mechanical properties of the produced nanocomposite, with implications for advancing the performance of welded structures in various engineering applications.

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Mechanical Properties and Microstructure Evolution Of AA6082/Sic Nanocomposite Processed by Multi-Pass FSP

Cited by 34 publications

References 69 publications

Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Investigation of the microstructure, mechanical and wear performance of friction stir-processed AA6061-T6 plate reinforced with B₄C particles surface composite

AA5754–Al2O3 Nanocomposite Prepared by Friction Stir Processing: Microstructural Evolution and Mechanical Performance

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Mechanical Properties and Microstructure Evolution Of AA6082/Sic Nanocomposite Processed by Multi-Pass FSP

Cited by 34 publications

References 69 publications

Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Investigation of the microstructure, mechanical and wear performance of friction stir-processed AA6061-T6 plate reinforced with B4C particles surface composite

AA5754–Al2O3 Nanocomposite Prepared by Friction Stir Processing: Microstructural Evolution and Mechanical Performance

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Investigation of the microstructure, mechanical and wear performance of friction stir-processed AA6061-T6 plate reinforced with B₄C particles surface composite