Publication Type:

Journal Article

Source:

International Journal of Minerals, Metallurgy and Materials, University of Science and Technology Beijing, Volume 24, Number 9, p.1052-1060 (2017)

URL:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028977888&doi=10.1007%2fs12613-017-1495-1&partnerID=40&md5=f05e5adaca3dcc29d6516595285ab71c

Keywords:

Adhesive wears, copper, Copper alloys, Copper matrix composite, Metallic matrix composites, Microstructural examination, Nickel alloys, Particle reinforced composites, Pin-on-disk tribometers, Reinforcement, Reinforcement content, Shear flow, Silicon alloys, Stir casting, Ternary alloys, Tin alloys, Tribology, Uniform dispersions, velocity, Wear mechanisms, Wear of materials, Wear resistance

Abstract:

The main objective of this paper was to fabricate Cu10Sn5Ni alloy and its composites reinforced with various contents of Si3N4 particles (5wt%, 10wt%, and 15wt%) and to investigate their dry sliding wear behavior using a pin-on-disk tribometer. Microstructural examinations of the specimens revealed a uniform dispersion of Si3N4 particles in the copper matrix. Wear experiments were performed for all combinations of parameters, such as load (10, 20, and 30 N), sliding distance (500, 1000, and 1500 m), and sliding velocity (1, 2, and 3 m/s), for the alloy and the composites. The results revealed that wear rate increased with increasing load and increasing sliding distance, whereas the wear rate decreased and then increased with increasing sliding velocity. The primary wear mechanism encountered at low loads was mild adhesive wear, whereas that at high loads was severe delamination wear. An oxide layer was formed at low velocities, whereas a combination of shear and plastic deformation occurred at high velocities. The mechanism at short sliding distances was ploughing action of Si3N4 particles, which act as protrusions; by contrast, at long sliding distances, direct metal–metal contact occurred. Among the investigated samples, the Cu/10wt% Si3N4 composite exhibited the best wear resistance at a load of 10 N, a velocity of 2 m/s, and a sliding distance of 500 m. © 2017, University of Science and Technology Beijing and Springer-Verlag GmbH Germany.

Notes:

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Cite this Research Publication

K. Sanesh, Sunder, S. S., and Radhika, N., “Effect of reinforcement content on the adhesive wear behavior of Cu10Sn5Ni/Si3N4 composites produced by stir casting”, International Journal of Minerals, Metallurgy and Materials, vol. 24, pp. 1052-1060, 2017.

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