Тип публикации: статья из журнала
Год издания: 2021
Ключевые слова: electric slag remelting, electrometallurgy, modification, non-metallic inclusions
Аннотация: Creation of metal materials with a given complex of physical and mechanical properties can be implemented using a complex approach, which combines obtaining a given chemical composition, production technology and strengthening treatment, which provide obtaining the required phase composition and a certain structural state of the maПоказать полностьюterials. The properties of alloys are determined not only by chemical composition and microstructure, but also to a large extent by the type, size, shape and nature of the phase distribution of different nature and origin. The application of various technologies, including high-energy ones, allows you to control the macro and microstructure, strength and operational characteristics, changing the structural and energy parameters of steel. More and more attention is paid to the patterns that exist between the composition, structure and properties of alloys obtained in non-equilibrium conditions, due to the use of technologies using high energy effects in the process of producing materials. Control of structure formation in melts and alloys under conditions far from thermodynamic equilibrium. The possibility of improvement of physical and mechanical properties of alloys by their production in non-equilibrium conditions is shown. This serves as a basis for obtaining alloys with a given complex of properties. The purpose of this work is to establish the regularities of the formation of the structure of instrumental materials under multifactorial complex effects under the conditions of electrometallurgical technologies. In the course of operation, technological modes of producing castings with electric slag chill casting were established, providing the most favorable process of melting the electrode in the crucible. Modification with rare earth metals of the cerium group changes morphology and reduces the number and size of non-metallic inclusions, which acquire a predominantly globular shape. It leads to significant increase in reliability of a product, due to increase in impact strength which increases from 0, 13 MJ/m2 (at not modified) up to 0, 30 MJ/m2 (after modifying). © 2006-2021. Asian Research Publishing Network (ARPN). All rights reserved.
Журнал: ARPN Journal of Engineering and Applied Sciences
Выпуск журнала: Vol. 16, Is. 1
Номера страниц: 20-25
ISSN журнала: 18196608
Издатель: Asian Research Publishing Network