Sciact
  • EN
  • RU

Mechanical and tribological properties of cold sprayed composite Al-B4C coatings Full article

Journal AIP Conference Proceedings
ISSN: 0094-243X
Output data Year: 2021, Volume: 2448, Article number : 020021, Pages count : DOI: 10.1063/5.0073401
Authors Shikalov V.S. 1 , Kosarev V.F. 1 , Vidyuk T.M. 1 , Klinkov S.V. 1 , Batraev I.S. 2
Affiliations
1 Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Institutskaya str., 4/1, Novosibirsk, 630090, Russian Federation
2 Lavrent'Ev Institute of Hydrodynamics SB RAS, Lavrent'ev str., 15, Novosibirsk, 630090, Russian Federation

Abstract: Composite aluminum matrix coatings with different content (0-72 vol.%) and size (17 and 75 μm) of B4C in the feedstock were deposited using the cold spray method. The analysis of the microstructure of the coatings was carried out using an SEM and XRD. The microhardness and adhesion strength of the sprayed coatings were measured, and sliding wear tests were carried out. It was shown that the same content in the feedstock, the larger carbide powder corresponds to its higher content in the coating. With the same boron carbide content in the coating, higher microhardness values correspond to coatings obtained from mixtures with fine carbide powder. Coatings sprayed from two different boron carbide powders at the same content in the powder correspond to approximately the same values of adhesion strength. For composite coatings with coarse ceramic powder, the volume loss decreases by about 2-3 times as compared with an aluminum coating. For coatings with fine powder, this effect is less pronounced. The presence of a fine ceramic powder in the coating has practically no effect on coefficients of friction, which turn out to be very close to the values for a coating of pure aluminum. The presence of coarse ceramic powder in the coating, regardless of its content, leads to a noticeable decrease in coefficients of friction. © 2021 Author(s).
Cite: Shikalov V.S. , Kosarev V.F. , Vidyuk T.M. , Klinkov S.V. , Batraev I.S.
Mechanical and tribological properties of cold sprayed composite Al-B4C coatings
AIP Conference Proceedings. 2021. V.2448. 020021 . DOI: 10.1063/5.0073401 Scopus РИНЦ OpenAlex
Identifiers:
Scopus: 2-s2.0-85122123795
Elibrary: 47552017
OpenAlex: W4206172749
Citing:
DB Citing
Scopus 7
OpenAlex 10
Elibrary 9
Altmetrics: