| Issue |
MATEC Web Conf.
Volume 129, 2017
International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2017)
|
|
|---|---|---|
| Article Number | 02034 | |
| Number of page(s) | 4 | |
| Section | Advanced Materials and Coatings | |
| DOI | https://doi.org/10.1051/matecconf/201712902034 | |
| Published online | 07 November 2017 | |
Multifunctional polymer-containing coatings on magnesium alloys
1
Institute of Chemistry Far Eastern Branch of Russian Academy of Sciences, 690022 Vladivostok, 159 100-letiya Vladivostoka Pr., Russia
2
Far Eastern Federal University, 690950 Vladivostok, 8 Sukhanova St., Russia
* Corresponding author: madiva@inbox.ru
The results of surface modification of magnesium alloys by plasma electrolytic oxidation (PEO) and post-treatment in suspension of tetrafluoroethylene (TFE) telomeric solution or superdispersed polytetrafluoroethylene (SPTFE) dispersion have been presented. Electrochemical, tribological properties and wetting ability of obtained protective composite coatings were investigated. The fabricated coatings decrease both the corrosion current density (1.7×10-9–5.4×10-11 A/cm2) and wear (9.8×10-6–7.6×10-7 mm3/(N m)) by orders of magnitude as compared to bare magnesium alloy (5.3×10-5 A/cm2 and 3.8×10-3 mm3/(N m)) and base PEO-coating (2.4×10-7 A/cm2 and 1.7×1-3 mm3/(N m)). Moreover, coatings obtained by means of PEO and polymer dispersion dipping possess hydrophobic and superhydrophobic properties. Such multifunctional coatings have high corrosion resistance and good friction coefficient under dry wear conditions that extends the application field of magnesium alloys.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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