Corrosion resistance and tribological behavior of WS2-Ti coatings by Ti cathode power changes in magnetron co-sputtering
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2018
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| author | Jhonattan de la Roche Yepes |
| author_facet | Jhonattan de la Roche Yepes |
| contents | Corrosion resistance and tribological behavior of WS2-Ti coatings by Ti cathode power changes in magnetron co-sputtering Jhonattan de la Roche Yepes Juan Manuel González Elizabeth Restrepo Parra Héctor Sánchez Sthepa Ingeniería TMD EIS Raman doping Solid lubricant Titanium-doped tungsten disulfide thin films (WS2-Ti) were deposited using a DC magnetron co-sputtering on AISI 304 stainless steel and silicon substrates. Different Ti cathode power densities between 0 and 1.25 W/cm2 were used for coating deposition. Energy-dispersive spectroscopy evidenced an increase in Ti percentage at the expense of W, as well as a sulfur deficiency. Raman spectroscopy was used to identify bands corresponding to W-S for undoped WS2. As the material was doped, changes in crystalline structure caused W-S main bands to separate. Scratch adhesion testing showed that Ti percentage increased along with the critical load (Lc). Furthermore, adhesive failure type changed from plastic to elastic. Finally, corrosion resistance analysis using electrochemical impedance spectroscopy (EIS) showed that, at high Ti concentrations, corrosion resistance was enhanced as Ti facilitates coating densification and generates a protective layer. 2018 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49658894029 https://www.redalyc.org/journal/496/49658894029/ https://www.redalyc.org/journal/496/49658894029/html/ https://www.redalyc.org/journal/496/49658894029/49658894029.epub https://www.redalyc.org/journal/496/49658894029/movil 10.15446/dyna.v85n207.67980 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.207 Vol.85 |
| format | Artículo científico |
| id | redalyc_49658894029 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Corrosion resistance and tribological behavior of WS2-Ti coatings by Ti cathode power changes in magnetron co-sputtering Jhonattan de la Roche Yepes Ingeniería TMD EIS Raman doping Solid lubricant Corrosion resistance and tribological behavior of WS2-Ti coatings by Ti cathode power changes in magnetron co-sputtering Jhonattan de la Roche Yepes Juan Manuel González Elizabeth Restrepo Parra Héctor Sánchez Sthepa Ingeniería TMD EIS Raman doping Solid lubricant Titanium-doped tungsten disulfide thin films (WS2-Ti) were deposited using a DC magnetron co-sputtering on AISI 304 stainless steel and silicon substrates. Different Ti cathode power densities between 0 and 1.25 W/cm2 were used for coating deposition. Energy-dispersive spectroscopy evidenced an increase in Ti percentage at the expense of W, as well as a sulfur deficiency. Raman spectroscopy was used to identify bands corresponding to W-S for undoped WS2. As the material was doped, changes in crystalline structure caused W-S main bands to separate. Scratch adhesion testing showed that Ti percentage increased along with the critical load (Lc). Furthermore, adhesive failure type changed from plastic to elastic. Finally, corrosion resistance analysis using electrochemical impedance spectroscopy (EIS) showed that, at high Ti concentrations, corrosion resistance was enhanced as Ti facilitates coating densification and generates a protective layer. 2018 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49658894029 https://www.redalyc.org/journal/496/49658894029/ https://www.redalyc.org/journal/496/49658894029/html/ https://www.redalyc.org/journal/496/49658894029/49658894029.epub https://www.redalyc.org/journal/496/49658894029/movil 10.15446/dyna.v85n207.67980 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.207 Vol.85 |
| title | Corrosion resistance and tribological behavior of WS2-Ti coatings by Ti cathode power changes in magnetron co-sputtering |
| topic | Ingeniería TMD EIS Raman doping Solid lubricant |
| url | https://www.redalyc.org/articulo.oa?id=49658894029 https://www.redalyc.org/journal/496/49658894029/ https://www.redalyc.org/journal/496/49658894029/html/ https://www.redalyc.org/journal/496/49658894029/49658894029.epub https://www.redalyc.org/journal/496/49658894029/movil |