Cr/CrN bilayer coating behavior under erosion-corrosion degradation by jet impingement testing
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional de Colombia
2016
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| _version_ | 1876449700369924096 |
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| author | Johanna Alegría-Ortega |
| author_facet | Johanna Alegría-Ortega |
| contents | Cr/CrN bilayer coating behavior under erosion-corrosion degradation by jet impingement testing Johanna Alegría-Ortega Luz Marina Ocampo-Carmona Fernando Rodríguez Elena Forlerer Ingeniería erosion corrosion Cathodic Arc Staintess Steel Multilayer coating Cathodic arc technique was used to deposit a Cr/CrN bilayer coating on AISI 440C stainless steel. The morphology and composition of the coating were verified by Scanning Electron Microscope and X-Ray Diffraction. Hardness and adhesion of the coating were also studied. In the erosion-corrosion wear, a slurry jet with impingement angle 90° at 4 and 8 m/s was used to impact upon bare and coated steel. All the wear mechanisms were evaluated according to ASTM G-119. The results indicate that the synergism wear rate is the most aggressive wear component, exceeding 40% of the total mass loss for coating steel and 60% of mass loss for bare steel. An increase in the impact velocity increases mass loss for both bare and coated steel. In comparison, the Cr/CrN coating had better corrosion and erosion–corrosion resistance. 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49645986019 https://www.redalyc.org/journal/496/49645986019/ https://www.redalyc.org/journal/496/49645986019/html/ https://www.redalyc.org/journal/496/49645986019/49645986019.epub https://www.redalyc.org/journal/496/49645986019/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.197 Vol.83 |
| format | Artículo científico |
| id | redalyc_49645986019 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Cr/CrN bilayer coating behavior under erosion-corrosion degradation by jet impingement testing Johanna Alegría-Ortega Ingeniería erosion corrosion Cathodic Arc Staintess Steel Multilayer coating Cr/CrN bilayer coating behavior under erosion-corrosion degradation by jet impingement testing Johanna Alegría-Ortega Luz Marina Ocampo-Carmona Fernando Rodríguez Elena Forlerer Ingeniería erosion corrosion Cathodic Arc Staintess Steel Multilayer coating Cathodic arc technique was used to deposit a Cr/CrN bilayer coating on AISI 440C stainless steel. The morphology and composition of the coating were verified by Scanning Electron Microscope and X-Ray Diffraction. Hardness and adhesion of the coating were also studied. In the erosion-corrosion wear, a slurry jet with impingement angle 90° at 4 and 8 m/s was used to impact upon bare and coated steel. All the wear mechanisms were evaluated according to ASTM G-119. The results indicate that the synergism wear rate is the most aggressive wear component, exceeding 40% of the total mass loss for coating steel and 60% of mass loss for bare steel. An increase in the impact velocity increases mass loss for both bare and coated steel. In comparison, the Cr/CrN coating had better corrosion and erosion–corrosion resistance. 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49645986019 https://www.redalyc.org/journal/496/49645986019/ https://www.redalyc.org/journal/496/49645986019/html/ https://www.redalyc.org/journal/496/49645986019/49645986019.epub https://www.redalyc.org/journal/496/49645986019/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.197 Vol.83 |
| title | Cr/CrN bilayer coating behavior under erosion-corrosion degradation by jet impingement testing |
| topic | Ingeniería erosion corrosion Cathodic Arc Staintess Steel Multilayer coating |
| url | https://www.redalyc.org/articulo.oa?id=49645986019 https://www.redalyc.org/journal/496/49645986019/ https://www.redalyc.org/journal/496/49645986019/html/ https://www.redalyc.org/journal/496/49645986019/49645986019.epub https://www.redalyc.org/journal/496/49645986019/movil |