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Article Dans Une Revue International Journal of Applied Ceramic Technology Année : 2018

Effect of Zr content on friction and wear behavior of Cr‐Zr‐N coating system

Résumé

Nanostructured Cr‐Zr‐N thin film with different Zr content (0 to 48.8 at.%) was deposited, using an RF magnetron‐sputtering technique. The structural evolution and morphological changes were performed. The tribological performances were evaluated, using a ball‐on‐disk type Oscillating tribometer. The tests were carried out under normal loads of 2, 4 and 6 N, respectively, with an alumina ball (Al2O3) as a counter face. The results showed that the crystallite size of the Cr‐Zr‐N system was reduced to 10.8 nm at 31.8 at.% Zr content. Morphological studies of the films showed that the roughness continuously decreased with increasing Zr content, exhibiting a value of 11.2 nm at 31.8 at.% Zr. The wear rate tends to decrease with the increasing of Zr content to reach a lowest value of 1.95 × 10‐2 μm3.N.μm‐1 at 31.8 at.% Zr. The wear rate and friction coefficient were lower in the samples with 31.8 at.% Zr content. The improved friction and wear resistance were attributed to the grain refinement strengthening mechanism at 31.8 at.% of Zr.
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Dates et versions

hal-03078566 , version 1 (16-12-2020)

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Mamoun Fellah, Linda Aissani, Mohammed Abdul Samad, Agung Purnama, Hamid Djebaili, et al.. Effect of Zr content on friction and wear behavior of Cr‐Zr‐N coating system. International Journal of Applied Ceramic Technology, 2018, 15 (3), pp.701-715. ⟨10.1111/ijac.12833⟩. ⟨hal-03078566⟩
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