Growth and characterization of in-situ formed Fe-TiN nanocomposite sputter-deposited coatings
Accepted version
Peer-reviewed
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Repository DOI
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Authors
Thirumalai, S
Abstract
Iron-rich nanocomposite Fe-Ti-N coatings are deposited by reactive direct-current magnetron sputtering. Co-deposition from two targets (Fe and Ti) onto substrates placed at different locations gives a combinatorial approach to film composition effects, with the Fe/Ti atomic ratio varying from 0.5 to 38. The influence of substrate-temperature is also studied. The nanohardness of the coatings increases with Fe content, and is as high as ~15GPa, far exceeding the value for pure-iron, and comparable alloy coatings. The nanowear resistance of the coatings scales as expected with their hardness, but their abrasive wear resistance is dependent on their adhesion to the substrate.
Description
Keywords
Magnetron sputtering, Atomic force microscopy, Nanoindentation, Surface topography, Nanowear
Journal Title
Surface and Coatings Technology
Conference Name
Journal ISSN
0257-8972
Volume Title
358
Publisher
Elsevier
Publisher DOI
Sponsorship
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (642642)
EU-H2020-Marie Curie ITN Actions