Boride-Carbon Hybrid Technology for Ultra-Wear and Corrosive Conditions
| Autor: | Osman Eryilmaz, Nina Baule, Lars Haubold, Zhong Hu, Ali Erdemir, Martina Zimmermann, André T. Zeuner, Young S. Kim, Robert Kühne, Qi Hua Fan, Thomas Schuelke |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2021 |
| Předmět: |
hybrid technology
Materials science Carbon steel Surfaces and Interfaces engineering.material Nanoindentation Tribology Engineering (General). Civil engineering (General) wear resistance Surfaces Coatings and Films Corrosion chemistry.chemical_compound chemistry Amorphous carbon Boride Indentation Materials Chemistry engineering tetrahedrally amorphous carbon TA1-2040 Composite material impact test Boriding |
| Zdroj: | Coatings Volume 11 Issue 4 Coatings, Vol 11, Iss 475, p 475 (2021) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings11040475 |
| Popis: | This work discusses a study on a surface treatment for creating extremely durable low-friction, wear and corrosion-resistant surfaces for tribological components in harsh conditions. A duplex surface treatment was developed that combines the advantages of ultra-fast electrochemical boriding with those of hard tetrahedral amorphous carbon coatings. The friction and wear properties of the duplex treatment are compared to the boride-only treatment of AISI 1045 steel, while corrosion and contact fatigue behaviors of the duplex layer are compared to that of the single-layer carbon coating on low carbon steel. The duplex treatment yields wear rates as low as 6 × 10−8 mm3·N−1·m−1 and a coefficient of friction of 0.14 when tested against a steel counter face. The contact fatigue impact tests reveal that the high hardness of 1200 HV0.05 of the borided layer in the duplex treatment leads to higher resistance against indentation but is accompanied by a higher incidence of crack initiation, being in good agreement with the finite-element modeling of nanoindentation results. The duplex coatings exhibit resistance to pinhole corrosion as evidenced by a 3 h exposure to 15% HCl at room temperature. |
| Databáze: | OpenAIRE |
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