Mechanical and tribological behavior of Ti/TiN and TiAl/TiAlN coated austempered ductile iron

Diego Alejandro Colombo,Alejo Daniel Mandri,María Dolores Echeverría,Juan Miguel Massone,Ricardo C. Dommarco

Thin Solid Films（2018）

Cited 23|Views8

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Abstract

Bilayer Ti/TiN and TiAl/TiAlN coatings were deposited onto austempered ductile iron (ADI) substrates by cathodic arc deposition in an industrial device. Structure and mechanical properties of the coated samples were comparatively examined. Wear behavior of the coated samples was investigated in comparison with uncoated ADI by means of rolling contact fatigue (RCF) tests, performed in a flat washer type testing rig and using lubricated pure rolling conditions. RCF tests results were analyzed using the two-parameter Weibull distribution and the Weibayes method.

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Key words

Austempered ductile iron,Cathodic arc deposition,Titanium,Titanium nitride,Titanium aluminum nitride,Titanium aluminide,Mechanical properties,Wear behavior

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