Actual Problems in Machine Building 2015 No. 2

Actual Problems in Machine Building. 2015. N 2 Materials Science in Machine Building ____________________________________________________________________ 400 7. Ливщиц Б.Г. Физические свойства металлов и сплавов / Б.Г Ливщиц В.С. Крапошин, Я.Л. Линецкий.– М.: Металлургия, 1980.– с. 314. 8. Дроздов Н.Г. Электроматериаловедение / Н.Г. Дроздов, М.В. Микулин.– М.: Высшая школа, 1968.– с. 311. 9. Лахтин Ю.М. Металловедение и термическая обработка металлов / Ю.М. Лахтин.– М.: Металлургия, 1993.– с. 448. 10. Афанасьев В.К. Влияние термоциклической деформации и отжига на структуру и удельное сопротивление стали марки Ст3пс / В.К. Афанасьев, А.Н. Прудников, М.В. Попова, В.А. Прудников// Актуальные проблемы в машиностроении: Сб. материалов 1 Международной научно-практич. конф.– Новосибирск: изд-во НГТУ, 2014.– С. 431-434. IMPACT ASSESSMENT THERMOCYCLIC DEFORMATION AND SUBSEQUENT HEAT TREATMENT ON THE ELECTRICAL PROPERTIES OF LOWCARBON STEEL Prudnikov A. N. , D.Sc. (Engineering), Professor, e-mail: a.prudnikov@mail.ru Popova M. V. , D.Sc. (Engineering), Professor, e-mail: m.popova@rdtc.ru Prudnikov V. A. , Ph.D. student, VLADPR88@gmail.com Siberian State Industrial University, 42 Kirov st., Novokuznetsk, 654007, Russian Federation Abstract The results of preliminary thermal cycling deformation and subsequent annealing in the range of 100-900 °C in steps of 100 °C on the structure and electrical resistivity low carbon steel sheet Ст3пс. The possibility of reducing the electrical resistivity of more than 3% through the use of pre- rational modes of thermal cycling rolling. Found that use thermocycling further deformation (rolling cycles 5), with a high degree of compression cycles (20-50 %) to obtain a thin sheet having a thickness of 1 mm to increase the specific electrical resistance is proportional to the degree of deformation. Overall reduction of electrical resistivity of the hot-rolled steel by using Ст3пс DTCT mode and subsequent annealing at 700 ° C for 1 hour on average 6-8 %. Keywords steel, structure, deformation, electrical resistivity, thermocyclic treatment, rolling