Fabrication of Al5083/B4C surface composite by friction stir processing and its tribological characterization

Yuvaraj, N.; Aravindan, S.; Vipin, .

doi:10.1016/j.jmrt.2015.02.006

Cited by 222 publications

(103 citation statements)

References 48 publications

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“…The wear resistance of different materials and composites processed by the FSW and FSP has been studied by many researchers [21][22][23][24]. The metal matrix composites prepared in these works exhibited lower friction coefficient and better wear resistance compared to unprocessed specimens.…”

Section: Introductionmentioning

confidence: 99%

Friction stir welding of AA5052: the effects of SiC nano-particles addition

Bodaghi

Dehghani

2016

Int J Adv Manuf Technol

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In the present work, the AA5052 aluminum sheets were joined by friction stir welding (FSW) technique. In order to refine the microstructure of stir zone (SZ) and to prevent the grain growth of heat-affected zone (HAZ), the SiC nanoparticles were added to the weld nugget. To obtain the optimum condition for FSW, three rotational speeds (800, 1000, and 1250 rpm) and three traveling speeds (30, 50, and 80 mm/ min) were applied. Microstructural evolutions were characterized using optical and scanning electron microscopes. Besides, the mechanical properties (tensile strength, hardness, and wear test) of weldment were also studied. The results showed that adding the SiC nano-particles led to the significant grain refining of the welds. However, the improper SiC powder distribution during one pass of FSW resulted in the premature fracture of workpiece. The specimens joined at the rotational speed of 1000 rpm and welding speeds of 50 and 80 mm/min exhibited the highest ultimate tensile strength.

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Section: Introductionmentioning

confidence: 99%

Friction stir welding of AA5052: the effects of SiC nano-particles addition

Bodaghi

Dehghani

2016

Int J Adv Manuf Technol

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“…Aluminum metal-matrix composites (Al-MMCs) reinforced with ceramic phases have become an important class of materials for structural, thermal and functional (for instance, electrical) applications because of their high elastic modulus, high hardness, abrasion resistance and excellent properties at room temperature and at relatively high temperatures, compared with conventional materials [1][2][3][4][5][6][7][8]. Although the reinforcing, thermal or functional phases are available in a variety of morphologies, most of the developments on AMMCs have focused on the use of particulate discontinuous reinforcements, presumably due to their versatility and low cost [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, B 4 C/Al composites have been considered for fabrication of bicycle frames, nozzles, automotive breaks, bulletproof vests, armor tanks, containments of nuclear wastes, neutron absorber material in nuclear power plants and other applications requiring high strength, high modulus, and high abrasive resistance [2,11].…”

Section: Introductionmentioning

confidence: 99%

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Surface chemistry modification for elimination of hydrophilic Al4C3 in B4C/Al composites

2016

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“…Recently, much attention has been paid to the fabrication of Al5083-based surface composites by applying FSP technique ( Ref 4,[8][9][10][11][12][13]. Silicon carbide is one of the most widely used powders to reinforce aluminum alloys because of its low density and high hardness ( Ref 4,[14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Corrosion Behavior of CeO2 and SiC Incorporated Al5083 Alloy Surface Composites

Amra

Ranjbar

Dehmolaei

2015

J. of Materi Eng and Perform

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In this investigation, nano-sized cerium oxide (CeO 2 ) and silicon carbide (SiC) particles were stirred and mixed into the surface of an Al5083 alloy rolled plate using friction stir processing (FSP) to form a surface nano-composite layer. For this purpose, various volume ratios of the reinforcements either separately or in the combined form were packed into a pre-machined groove on the surface of the plate. Microstructural features, mechanical properties, and corrosion behavior of the resultant surface composites were determined. Microstructural analysis, optical microscopy and scanning electron microscopy, showed that reinforcement particles were fairly dispersed inside the stir zone and grain refinement was gained. Compared with the base alloy, all of the FSP composites showed higher hardness and tensile strength values with the maximum being obtained for the composite containing 100% SiC particles, i.e., Al5083/SiC. The corrosion behavior of the samples was studied by conducting potentiodynamic polarization tests and assessed in terms of corrosion potential, pitting potential, and passivation range. The result shows a significant increase in corrosion resistance of the base alloy; i.e., the longest passivation range when CeO 2 alone was incorporated into the surface by acting as cathodic inhibitors. Composites reinforced with SiC particles exhibited lower pitting resistance due to the formation of microgalvanic couples between cathodic SiC particles and anodic aluminum matrix. The study was aimed to fabricate metal matrix surface composites with improved hardness, tensile strength, and corrosion resistance by the incorporation of CeO 2 and SiC reinforcement particles into the surface of Al5083 base alloy. Optimum mechanical properties and corrosion resistance were obtained for the FSP composite Al5083/(75%CeO 2 + 25%SiC). In this particular FSP composite, hardness and tensile strength were increased by 30, and 14%, respectively, and passivation range was increased to 0.19 V/SCE compared to the base alloy with no passivation range.

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Fabrication of Al5083/B4C surface composite by friction stir processing and its tribological characterization

Cited by 222 publications

References 48 publications

Friction stir welding of AA5052: the effects of SiC nano-particles addition

Friction stir welding of AA5052: the effects of SiC nano-particles addition

Surface chemistry modification for elimination of hydrophilic Al4C3 in B4C/Al composites

Mechanical Properties and Corrosion Behavior of CeO2 and SiC Incorporated Al5083 Alloy Surface Composites

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