The influence of the hardness of the shaft journals and the chemical composition of tribotechnical organic-inorganic materials for forming coatings on steel on the performance properties of crankshaft bearings marine medium speed diesel engines

Authors

DOI:

https://doi.org/10.24866/2227-6858/2024-1/56-66

Keywords:

diesel, bearing, coating, wear, tribotechnical material, mechanical properties, surface topography

Abstract

The paper summarizes the results of studies of the operational properties of the tribo-tension "crank-shaft – bearing liner" of a marine medium-speed diesel engine. The main cause of crankshaft failures is the wear of the necks. To increase the durability of crankshaft bearings, it is proposed to form wear-resistant thin-film metal-ceramic coatings on the shaft necks, which are obtained by tribomechanical modification of the surface with organo-inorganic materials based on vermiculite.
It has been established that the following factors affect the wear rate of the parts of the tribo-tension "crankshaft – bearing liner" of a marine medium-speed diesel engine: mechanical properties: the modulus of elasticity of the surface layer has the greatest influence. To increase the wear resistance of the parts of the tribo-tension "crank-shaft – bearing liner" and, accordingly, its durability, it is necessary to form thin-film metal-ceramic coatings on the surface of the necks, providing optimal parameters of mechanical properties and surface structure.

Author Biographies

  • Andrey l. Leont’ev, Government of the Primorsky Territory, Vladivostok

    Candidate of Engineering Sciences, Minister of Energy and Gas Supply, Government of the Primorsky Territory (Vladivostok, Russia)

  • Lev В. Leont’ev, Far Eastern Federal University, Vladivostok

    Doctor of Engineering Sciences, Professor, Polytechnic Institute, Far Eastern Federal University (Vladivostok, Russia)

  • Nikolay Р. Shapkin, Far Eastern Federal University, Vladivostok

    Doctor of Chemical Sciences, Professor, Institute of High Technology and Advanced Materials, Far Eastern Federal University (Vladivostok, Russia)

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Published

2024-03-29

Issue

Section

Technology and Organization of Shipbuilding and Ship Repair

How to Cite

1.
The influence of the hardness of the shaft journals and the chemical composition of tribotechnical organic-inorganic materials for forming coatings on steel on the performance properties of crankshaft bearings marine medium speed diesel engines. Вестник Инженерной школы ДВФУ [Internet]. 2024 Mar. 29 [cited 2024 Nov. 24];1(1(58):56-6. Available from: https://journals.dvfu.ru/vis/article/view/1151