Fabrication and investigation of microstructutr and mechanical properties of A356-TiO2-Gr surface hybrid nanocomposite by friction stir processing

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AHMADIFARD SAEED; ROKNIAN MASOUD; Khodaee Fatemeh; HEIDARPOUR AKBAR

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Journal: Journal of Science and Technology of Composites Year:2018 | Volume:5 | Issue:1 Page(s): 61-68

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Title

Fabrication and investigation of microstructutr and mechanical properties of A356-TiO2-Gr surface hybrid nanocomposite by friction stir processing

Author(s)

AHMADIFARD SAEED | ROKNIAN MASOUD | Khodaee Fatemeh | HEIDARPOUR AKBAR | Issue Writer Certificate

Keywords

Friction stir processing A356 Al Surface nanocomposites Mechanical properties WearQ2

Abstract

The A356 is a cast alloy which consist of aluminum, silicon and magnesium. This alloy has good strangth and ductility with excellent casting properties, high corrosion resistance and good fluidity. This alloy is wiedly used in the automotive industry, aircraft, defense industry and especially the automotive industry as a substitution of steel components. Poor wear resistance of the alloys is major limitation for their use. Friction stir processing (FSP) is a recognized surfacing technique as it overcomes the problems of fusion route surface modification methods. In this study, friction stir processing was utilized to incorporate TiO2 and graphite particles into the matrix of an A356 alloy to form surface hybrid nanocomposite. For fabrication of nanocomposite a constant tool rotation rate of 900 rpm and travel speed of 60 mm/min with a tool tilt angle of 3 degree was used. Keeping in view of the requirement for improving wear resistance of A356 alloy, friction stir processing was attempted for surface modification with TiO2 and graphite powders. SEM, metallography, hardness, nanoindentation and pin-on-disc wear testing were used for characterizing the surface of nanocomposite. Microstructural analysis showed a uniform distribution of reinforcement particles inside the nugget zone. The surface nanocomposite results in enhanced properties in mechanical properties and wear resistance compared to the behavior of the base metal. Addition of solid lubricant graphite improve tribological properties of the nanocomposite.

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APA: Copy

AHMADIFARD, SAEED, ROKNIAN, MASOUD, Khodaee, Fatemeh, & HEIDARPOUR, AKBAR. (2018). Fabrication and investigation of microstructutr and mechanical properties of A356-TiO2-Gr surface hybrid nanocomposite by friction stir processing. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 5(1 ), 61-68. SID. https://sid.ir/paper/251779/en

Vancouver: Copy

AHMADIFARD SAEED, ROKNIAN MASOUD, Khodaee Fatemeh, HEIDARPOUR AKBAR. Fabrication and investigation of microstructutr and mechanical properties of A356-TiO2-Gr surface hybrid nanocomposite by friction stir processing. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)[Internet]. 2018;5(1 ):61-68. Available from: https://sid.ir/paper/251779/en

IEEE: Copy

SAEED AHMADIFARD, MASOUD ROKNIAN, Fatemeh Khodaee, and AKBAR HEIDARPOUR, “Fabrication and investigation of microstructutr and mechanical properties of A356-TiO2-Gr surface hybrid nanocomposite by friction stir processing,” JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), vol. 5, no. 1 , pp. 61–68, 2018, [Online]. Available: https://sid.ir/paper/251779/en

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