ANALYSIS OF DAMAGE TO AIRCRAFT PARTS MADE OF TITANIUM ALLOYS AND INCREASE OF THEIR WEAR RESISTANCE BY GAS-THERMAL COATINGS
DOI:
https://doi.org/10.18372/0370-2197.2(107).20057Keywords:
titanium alloys, fretting corrosion, wear, coatings, plasma method, damage, analysis, fretting resistanceAbstract
The damage analysis of aircraft parts made of titanium alloys is carried out. Damage resulting from cyclic loads in the form of wear is shown. Gas-thermal coatings based on nickel for protection and restoration of parts made of titanium alloys are analyzed. The results on fretting resistance of some coatings that were applied by plasma method are carried out. It is established that the most fretting-resistant are coatings based on ВK, as well as a molybdenum coating. It is theoretically determined that with an increase in temperature in the friction zone, the logarithmic decrement of the molybdenum coating increases more than that of nickel-based coatings. It is established that due to the high hardness of the ВK type coating, it is possible to protect titanium parts of high rigidity, where the main operational factor is friction. In cases where wear of parts is combined with other loads such as bending, torsion, stretching, the optimal choice will be a molybdenum coating on parts made of titanium alloys.
References
Chen W., Li Z. Additive manufacturing of titanium aluminides. Additive Manufacturing for the Aerospace Industry. 2019. P. 235–263. URL: https://doi.org/10.1016/b978-0-12-814062-8.00013-3
Titanium Sponge Production and Processing for Aerospace Applications / C. R. V. S. Nagesh et al. Aerospace Materials and Material Technologies. Singapore, 2016. P. 73–89. URL: https://doi.org/10.1007/978-981-10-2134-3_4
Titanium Alloys for Aerospace Applications / M. Peters et al. Titanium and Titanium Alloys. Weinheim, FRG, 2005. P. 333–350. URL: https://doi.org/10.1002/3527602119.ch13
Vargel C. Fretting corrosion. Corrosion of Aluminium. 2020. P. 273–278. URL: https://doi.org/10.1016/b978-0-08-099925-8.00021-1
Thermal Sprayed Coatings. The Protective Coatings User’s Handbook. 3rd ed. 2016. P. 113–141. URL: https://doi.org/10.5006/37605-ch05 .
Ružbarský J., Panda A. Thermal Spraying. Plasma and Thermal Spraying. Cham, 2016. P. 49–57. URL: https://doi.org/10.1007/978-3-319-46273-8_6
Мікосянчик О.О. Thermo-kinetic model for assessment of durability of contact surfaces under lubricating in non-stationary mode of operation. Problems of Friction and Wear. 2017. No. 1(74). URL: https://doi.org/10.18372/0370-2197.1(74).11436
Шевеля B.B., Дворук В.И., Радченко A.B. Modulation of metal surface abrasive tribocleaning. Proceedings of the National Aviation University. 2016. Vol. 6, no. 1-2. URL: https://doi.org/10.18372/2306-1472.6.9718
Roshan R., Patel S. K. NiTi plasma spray coating. Nickel-Titanium Smart Hybrid Materials. 2022. P. 151–172. URL: https://doi.org/10.1016/b978-0-323-91173-3.00013-4
Kralya V.A., Khimko A.N., Borodii V.N. Wear resistance of plasma coatings for a constant work of friction. Strength of Materials. 2007. Vol. 39, no. 5. P. 523–528. URL: https://doi.org/10.1007/s11223-007-0058-5
Khimko А.M. Wear resistance of materials under reversal and one-directed friction sliding Proceedings of National Aviation University. 2011. Vol. 46, no. 1. URL: https://doi.org/10.18372/2306-1472.46.2088
