Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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GO TO IMPROVE TECHNOLOGICAL AND OPERATIONAL PROPERTIES OF SOME STRUCTURAL STEEL

Pachurin G.V. 1 Shevchenko S.M. 2 Gorshkova T.A. 2
1 FGBOU VPO Novgorod State Technical University. RE Alekseev
2 FGBOU VPO Nizhny Novgorod State Pedagogical University Kozma Minin
An important objective is to improve the life of structural materials depending on conditions of operation. The solution to this problem is related to the definition of the method of hardening material for a specific application. The paper presents the results of study of the effect of the surface processing methods for structural steels their properties and, specifically, laser alloying abrasion carbon chromium steel and a chromium coating 45 of an organometallic compound on the strength and deformation of austenitic steels at elevated temperatures and low voltages. Found that at high temperatures and low voltage begins to show this kind of deformation as grain boundary sliding, which makes a significant contribution in the birth and growth of microcracks. Its value varies depending on the voltage of the grain size and the distance from the surface. The maximum effect of increasing the performance properties of austenitic steels observed in chrome plating of the organometallic compound. The proposed method makes it possible to replace expensive heat-resistant steel cheaper austenitic steels, hardened by a thin surface coating of organometallic compounds of chromium.