Adhesion, tribological and corrosion properties of cold-sprayed CoCrMo and Ti6Al4V coatings on 6061-T651 Al alloy
| Autor: | Iulian Marinescu, Wen Sun, Adrian Wei-Yee Tan, Erjia Liu, Wei Quan Toh |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Alloy Metallurgy Gas dynamic cold spray Titanium alloy chemistry.chemical_element 02 engineering and technology Surfaces and Interfaces General Chemistry Adhesion engineering.material Tribology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Surfaces Coatings and Films Corrosion chemistry Aluminium 0103 physical sciences Materials Chemistry engineering 0210 nano-technology Porosity |
| Zdroj: | Surface and Coatings Technology. 326:291-298 |
| ISSN: | 0257-8972 |
| Popis: | In this study, CoCrMo and Ti6Al4V coatings were deposited on 6061-T651 aluminum alloy substrates via a high pressure cold spray process. Adhesion, tribological and corrosion properties of the CoCrMo and Ti6Al4V coatings were systematically investigated. The CoCrMo and Ti6Al4V coatings had good quality with low porosity levels and high hardnesses. X-ray diffraction patterns showed that there were no phase change and oxidation for the CoCrMo and Ti6Al4V coatings with reference to the CoCrMo and Ti6Al4V powder feedstocks. The shear bonding tests indicated good adhesion quality between the coatings and substrates. The tribological results showed that the CoCrMo coatings significantly enhanced the wear resistance of the Al alloy substrates. The corrosion results showed that the CoCrMo and Ti6Al4V coatings had higher anti-corrosion performances compared to the bare Al alloy substrates in a 3.5 wt% NaCl solution as the corrosion current densities for the CoCrMo and Ti6Al4V coated samples were substantially reduced. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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