Page 15 - Stanochny park

METALWORKING EQUIPMENT AND TOOLS

especially copper-based alloys) has an advantage due to the phenomenon of copper transfer
to the mating surface and its protection from destruction, as a result of which the wear of steel
paired with a copper coating is two times lower than with nitrided.

Conclusion
Based on the results of tribotechnical tests, the following conclusions can be formulated:
● Copper coating of steel ShKh15, obtained by gas-dynamic spraying, has high performance
when tested under friction and wear conditions: Ih (coatings) ≈ (1.1 - 1.5) x 10-10 and Ih
(counterbody) ≈ (0.3 - 0.4) x 10-11 with friction in mineral oil I-20A and Ih (coatings) ≈ (2 - 5)
x 10-10 and Ih (counterbody) ≈ 0.2 x 10-11 in a plastic Litol-24 lubricant;
● the phenomenon of copper transfer to the conjugate steel counterbody was established; it is
more pronounced under friction under the conditions of a grease (containing active ingredients);
● shows the sensitivity of the level of surface destruction during friction on the technological
parameter (spraying temperature) and external test conditions (the nature and properties of the
lubricant), which indicates the need for further technological developments within the limits and
goals of the operational characteristics of mechanical engineering and machine tool products.

V.E. Arkhipov, Chief Researcher.
A. F. Londarsky, senior researcher.
G.V. Moskvitin, head of the laboratory.
M. S. Pugachev, researcher.
N. V. Shirokova, researcher.
Federal state budget
institution of science Institute of Mechanical Engineering
named after A. A. Blagonravov Russian Academy of Sciences (IMASH RAS),
Moscow city.

Literature:
1. Structure and properties of coatings applied by gas-dynamic spraying / Arkhipov V.E., Dubravina A.A., Kuksenova L.I.,
Londarsky A.F., Moskvitin G.V., Pugachev M. S. // Strengthening technologies and coatings. 2015. No. 4 (124). pp. 18 - 24.
2. Comparative assessment of the adhesion of coatings / Arkhipov V.E., Balashova A.V., Londarsky A.F., Moskvitin G.V.,
Melshanov A.F., Pugachev M.S.// Factory laboratory.
Diagnostics of materials.2014. No. 12. pp 47 - 52.
3. Tribotechnical characteristics of gas-dynamic coatings / Dunaev A.V., Arkhipov V.E., Londarsky A.F., Moskvitin G.V.,
Pugachev M.S.// Friction and lubrication in machines and mechanisms. 2013. No 8. pp. 37 - 41.
4. Dimet. Application of technology and equipment. [Electronic resource]. - Access mode: http://www.dimet-r.narod.ru/ -
(Date of treatment 10/14/2014).
5. Kuksenova L.I., Lapteva V.G., Kolmakov A.G., Rybakova L.M. Methods of testing for friction and wear. Reference edition.
Moscow: Intermet Engineering, 2001. 152 p.
6. Kragelsky I.V., Dobychin M.N., Kombalov B. C. Fundamentals of calculations for friction and wear. Moscow: Mechanical
Engineering, 1977, 526 p.
7. Garkunov D.N. Tribotechnics (wear and tear). Moscow: publishing house of Moscow Agricultural Academy, 2001.
8. Gerasimov S.A., Kuksenova L.I., Lapteva V.G. Structure and wear resistance of nitrided structural steels and alloys.
Moscow: Publishing house of MSTU named after N.E.Bauman. 2012. 518 p.

Stanochniy park 15