Optimizing the Effect of Solid Lubricants on the Sliding Wear Behavior of SiCp Reinforced Cast Aluminum Alloy

Khan, Mohammad Mohsin; Hajam, Mohammad Irfan; Mir, Zahoor Ahmad

doi:10.1007/s40735-020-00460-w

Cited by 11 publications

(1 citation statement)

References 55 publications

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“…However, Al-alloy-moving pairs often lead to wear failure on the surface of parts owing to several factors, such as low hardness and naturally formed oxide lm on the surface that is thin and uneven. This considerably limits the service life and reliability of the entire machine as well as the application of Al-alloy substrates under extreme conditions, such as high partial load, high temperature, and severe corrosion wear [11,12]. To overcome these limitations, surface treatment technology is extremely important for solving or improving the wear resistance of Al alloys [13,14].…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Cathode Plasma Electrolytic Deposited Al2Y4O9 Coating on Aluminum Alloy

et al. 2022

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Ceramic coatings are widely used as protective barriers on the surfaces of various metals and alloys.Herein, a novel surface ceramic treatment, i.e., cathode plasma electrolytic deposition (CPED), is proposed for the surface of an Aluminum (Al) alloy. The coating, prepared in an Y(NO 3 ) 3 aqueous solution on the surface of the Al alloy, consists of Al 2 Y 4 O 9 as the major phase component, Y 2 O 3 as a minor phase component, and amorphous Al 2 O 3 in the grain boundaries. As the applied voltage and deposition time increased, the crystallization of the coatings was enhanced. When deposited at 130 V for 10 min, the contact angle of the ceramic coating reached 141.0 ± 2.6°, indicating an enhanced self-cleaning effect.The ceramic coating also exhibited excellent self-lubricating and anti-wear effects. The friction coe cient of the CPED-treated sample vs. ZrO 2 ball or bearing steel ball decreased from 0.55-0.65 to 0.26-0.31 when the load was 3 N and the reciprocating velocity was 10 mm/s. Correspondingly, the wear rate of the CPED-treated sample vs. the ZrO 2 ball or bearing steel ball was signi cantly reduced. Results indicated that CPED is effective for the formation of self-cleaning and anti-wear ceramic coatings on Al alloys.

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