Actual Problems in Machine Building 2020 Vol. 7 No. 3-4

Actual Problems in Machine Building. Vol. 7. N 3-4. 2020 Materials Science in Machine Building ____________________________________________________________________ 76 19. Kozlov G. V., Yanovskii Yu. G., Zaikov G. E. Composites and Nanocomposites Polymers // Polymer Yearbook-2011: Polymers, Composites and Nanocomposites. – New York: Nova Science Publishers Inc, 2011. – P. 218. 20. Никифоров А.С., Рафанова О.С., Мулюхин Н.В . Проблемы трещинообразования при финишной обработке высокопрочных материалов // Современные технологии: проблемы и перспективы: сборник статей всероссийской научно-практической конференции для аспирантов, студентов и молодых учёных Севастополь, 20–23 мая 2019 г. – Севастополь, 2019. – С. 77–82. 21. Пат. РФ 2195511 С2. Дисперсно-упрочненный композиционный материал для электроконтактных деталей / Е.П. Шалунов, А.Л. Матросов, Я.М. Липатов, В.Я. Берент. – № 2001103228/02 ; заявл. 05.02.2001 ; опубл. 27.12.2002. – 7 с. 22. Пат. РФ 2116370 С2. Способ получения дисперсно-упрочненных материалов на основе меди / Е.П. Шалунов. – № 97104859/02 ; заявл. 27.03.1997 ; опубл. 27.07.1998. – 13 с. ANALYSIS OF MODERN MATERIALS AND USE OF THE MOST OPTIMAL OF THEM FOR THE CRANKSHAFT SLIDING BEARINGS OF HIGHLY FORCED DIESEL ENGINES Danilov P.G. , Undergraduate, e-mail: danilov211@mail.ru Vladimirova Yu.O. , Assistant, e-mail: yulivladimirova@mail.ru Shalunov E.P. , Ph. D. (Engineering), Professor, e-mail :shalunov2003@mail.ru I. N. Ulianov Chuvash State University, 15 Moskovsky Prospekt, Cheboksary, 428015, Russian Federation Abstract The paper describes the operating conditions of the crankshaft sliding bearings of high-powered diesel engines, as well as formulates the requirements for materials for such bearings. The justification of the need to use metal composite materials based on copper for the bearing and anti- friction layers of sliding bearings is given. As a material for the carrier layer, dispersion - strengthened composite material of the Cu-Al-CO system of the C0/97 DISCOM ® brand (TU 1479- 002-13092819-2001) is recommended, and as a material for the antifriction layer, the newly developed nanocomposite material of the Cu-Sn-Al-MoS 2 -C-O system. Both of these materials are manufactured using the method of reaction mechanical alloying in attritors and technologies of powder and granular metallurgy. Keywords Plain bearings, root and connecting rod inserts, antifriction material, hardness, yield strength, tribotechnical properties.