Improving the Properties of Composite Titanium Nitride Layers on the AZ91D Magnesium Alloy Using Hydrothermal Treatment
| Autor: | Paweł Marchlewski, Michał Tacikowski, Marcin Pisarek, Rafal Jakiela, Krzysztof Rozniatowski, Tadeusz Wierzchoń, Janusz Kamiński |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science chemistry.chemical_element Nitride Surface engineering engineering.material Article Corrosion chemistry.chemical_compound magnesium alloys hydrothermal treatment Coating General Materials Science hybrid method Magnesium alloy corrosion and wear resistance Microscopy QC120-168.85 Anodizing Magnesium overheated steam Metallurgy QH201-278.5 technology industry and agriculture equipment and supplies Engineering (General). Civil engineering (General) composite surface layers Titanium nitride TK1-9971 titanium nitride chemistry Descriptive and experimental mechanics engineering Electrical engineering. Electronics. Nuclear engineering TA1-2040 |
| Zdroj: | Materials Materials, Vol 14, Iss 5903, p 5903 (2021) Volume 14 Issue 19 |
| ISSN: | 1996-1944 |
| Popis: | Coating magnesium alloys with nitride surface layers is a prospective way of improving their intrinsically poor surface properties in particular, their tribological and corrosion resistance. These layers are usually produced using PVD methods using magnetron sputtering or arc evaporation. Even though the thus-produced layers significantly increase the wear resistance of the alloys, their effects on corrosion resistance are unsatisfactory because of the poor tightness, characteristic of PVD-produced products. Tightness acquires crucial significance when the substrate is a highly-active magnesium alloy, hence our idea to tighten the layers by subjecting them to a post-deposition chemical-hydrothermal-type treatment. This paper presents the results of our experiments with a new hybrid surface engineering method, using a final tightening pressure hydrothermal gas treatment in overheated steam of the composite titanium nitride layers PVD, produced on AZ91D magnesium alloy. The proposed method resulted in an outstanding improvement of the performance properties, in particular resistance to corrosion and wear, yielding values that exceed those exhibited by commercially anodized alloys and austenitic stainless 316L steel. The developed hybrid method produces new, high-performance corrosion and wear resistant, lightweight magnesium base materials, suitable for heavy duty applications. |
| Databáze: | OpenAIRE |
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