Impact wear of the Co-based HVOF-sprayed coatings

0574292 - ÚPT 2024 RIV GB eng J - Journal Article
Daniel, Josef - Houdková, Š. - Duliškovič, J. - Grossman, Jan
Impact wear of the Co-based HVOF-sprayed coatings.
Tribology International. Roč. 187, September (2023), č. článku 108755. ISSN 0301-679X. E-ISSN 1879-2464
R&D Projects: GA TA ČR(CZ) TH75020003
Institutional support: RVO:68081731
Keywords : Thermally-sprayed coatings * Impact wear * Erosion wear * Abrasion wear * Scanning electron microscopy
OECD category: Mechanical engineering
Impact factor: 6.2, year: 2022
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0301679X23005431

The dynamic impact test is a tool for investigating the impact wear of the coated samples. In the dynamic impact test, the indenter successively impacts the same place of the sample surface with a constant, well-defined impact load and frequency. This paper focuses on the study of the impact wear of superalloy Co-based HVOF-sprayed coatings, CoCrW and CoCrAlYTaCSi. The impact wear of the coatings was discussed with respect to their mechanical properties and microstructure. The results of the impact wear of the coatings were compared with the results of the erosion wear tests and the sliding/abrasion wear tests. The correlation of impact wear resistance with the resistance of solid particle erosion was confirmed, on contrary to abrasive and sliding wear.
Permanent Link: https://hdl.handle.net/11104/0344636