Wear Behavior of a Ni/Co Bilayer Coating by Physical Vapor Deposition on AISI 1045 Steel
| Autor: | E. Pardo L., S. E. Rodil, B. Campillo, I. Dominguez, J. G. González-Rodriguez, H. Martinez |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Scanning electron microscope 02 engineering and technology engineering.material Tribology 021001 nanoscience & nanotechnology Surface coating chemistry.chemical_compound 020303 mechanical engineering & transports 0203 mechanical engineering Coating chemistry Boron nitride Torr Physical vapor deposition engineering Deposition (phase transition) Composite material 0210 nano-technology |
| Zdroj: | Journal of Nuclear Physics, Material Sciences, Radiation and Applications. 8:203-209 |
| ISSN: | 2321-9289 2321-8649 |
| Popis: | Coatings by physical vapor deposition (PVD) have become highly relevant due to their wide range of applications and the rapid rate of coating formation. In this work, AISI steel 1045 was coated with two layers, Ni and Co using the PVD technique. Each coating was deposited with a thickness of 1 μm. After applying the coatings, a post-treatment was applied in an AC plasma reactor using a boron nitride blank in an Ar atmosphere at a pressure of 3 Torr, 0.3 A, and 460 V at 4, 8, and 12h. The post-treatment was characterized by optical emission spectroscopy (OES) in a range of 200-1100 nm. The main species observed by OES were Ar+, N2, N2+, and B+. The coatings on 1045 steel and posttreatment were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Also, were subjected to tribological tests to analyze wear resistance, using the Pin-on-Disk technique. The coatings on steel 1045 present remarkably better wear properties than the uncoated 1045 steel, being the sample post-treated at 4h that showed a lower wear rate. |
| Databáze: | OpenAIRE |
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