Tribological behaviour of low carbon-containing TiAlCN coatings deposited by hybrid (DCMS/HiPIMS) technique

TiAlN monolayers and TiAlN/TiAlCN bilayers were successfully deposited by hybrid (DCMS/HiPIMS) technology. The increase in the acetylene flow has linearly augmented the percentage of carbon incorporated into the coating systems. The TiAlCN with the highest carbon content significantly increased roug...

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Bibliographic Details
Published in:Tribology international 2020-11, Vol.151, p.106528, Article 106528
Main Authors: Tillmann, Wolfgang, Grisales, Diego, Marin Tovar, Carlos, Contreras, Elbert, Apel, Daniel, Nienhaus, Alexander, Stangier, Dominic, Lopes Dias, Nelson Filipe
Format: Article
Language:English
Subjects:
Acetylene
Bilayers
Carbon
Carbon content
Coefficient of friction
Compressive properties
Design of experiments
Factorial design
Hybrid (DCMS/HiPIMS)
Modulus of elasticity
Residual stress
Residual stresses
Response surface methodology
Sliding
TiAlCN
Tribology
Wear maps
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Summary:TiAlN monolayers and TiAlN/TiAlCN bilayers were successfully deposited by hybrid (DCMS/HiPIMS) technology. The increase in the acetylene flow has linearly augmented the percentage of carbon incorporated into the coating systems. The TiAlCN with the highest carbon content significantly increased roughness and reduced hardness and Young's modulus. Additionally, a great reduction of the compressive residual stress has been noticed. Response surface methodology has been used from a full factorial design of experiments in order to create friction and wear maps varying sliding velocity and normal load for each of the coating systems. Tribological results showed that the coefficient of friction is not as dependent on the carbon content as it is on both the sliding velocity and normal load. •TiAlN and TiAlCN were successfully deposited by hybrid (DCMS/HiPIMS).•The higher the flow of acetylene during deposition, the higher the carbon content.•Response surface methodology after full factorial design was utilised for tribology.•TiAlN/TiAlCN with higher content of carbon (7.8 at.%) presented tensile residual stresses.•Carbon contend had no significant influence on friction, but improved wear resistance.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2020.106528