Loading...
Please wait, while we are loading the content...
Similar Documents
Tribological Properties of Chromia and Chromia Composite Coatings Deposited by Plasma Spraying
| Content Provider | MDPI |
|---|---|
| Author | Mindaugas, Milieška Matas, Grigaliūnas Sebastjan, Matkovič Bastakys, Lukas Marcinauskas, Liutauras Aikas, Mindaugas |
| Copyright Year | 2022 |
| Description | $Cr_{2}O_{3}$ and $Cr_{2}O_{3}–SiO_{2}-TiO_{2}$ coatings are deposited on P265GH steel using atmospheric plasma spraying. The influence of silicon oxide—titanium oxide addition on the surface morphology of the coatings, phase composition and tribological properties under non-lubricated sliding conditions are investigated. The addition of $SiO_{2}-TiO_{2}$ led to the formation of a more uniform surface morphology and reduce the surface roughness of the $Cr_{2}O_{3}$ coatings. The X-ray diffraction (XRD) studies indicated that both coatings are composed of an eskoloite $Cr_{2}O_{3}$ phase. The friction coefficients of the $Cr_{2}O_{3}$ coating are 0.504 and 0.431 when 1 N and 3 N loads were used, respectively. Meanwhile, the $Cr_{2}O_{3}–SiO_{2}-TiO_{2}$ coating demonstrated slightly lower values of friction coefficients under similar loads. The specific wear rate of the as-sprayed coating is reduced with the addition of $SiO_{2}-TiO_{2}$. It was found that the wear rates of the $Cr_{2}O_{3}$ and $Cr_{2}O_{3}–SiO_{2}-TiO_{2}$ coatings are up to 20 times lower compared to the steel substrate. This article is an expanded version of the “19th international conference on plasma physics and applications” conference |
| Starting Page | 1035 |
| e-ISSN | 20796412 |
| DOI | 10.3390/coatings12071035 |
| Journal | Coatings |
| Issue Number | 7 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-21 |
| Access Restriction | Open |
| Subject Keyword | Coatings Coatings and Films Plasma Spraying Chromia Coatings Cr2o3–sio2-tio2 Tribological Properties Friction Coefficient |
| Content Type | Text |
| Resource Type | Article |
