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Information × Registration Number 0212U000452, 0107U000471 , R & D reports Title Control formation of high wear resistant nanostructure surface layers of cast multiphase alloys due to special alloying and external influence. popup.stage_title Head Havryliuk V.P., Registration Date 13-02-2012 Organization Physico-technological institute of metals and alloys National academy of Sciences of Ukraine popup.description2 Object of study - alloy systems Fe-C, Fe-Cr-C, additionally alloyed with complex elements, which affect on structure of the original structure and the structure of surface layers in the process of external influence. The main purpose of research is the use of special alloying, intensive methods to influence the cluster structure of the complex thermo-time treatment, magnetic and vibration treatment of alloys in the liquid state and on structure formation during solidification of alloys. Determined the role of heterogeneous structure consisting of hard (carbide eutectic) and soft (? - phase based on Cu) components in the management of the formation of the tribological characteristics of alloys of the Fe-Cr-C system. The mechanism of formation precipitates of copper containing ? - phase is proposed, which is a prerequisite for separation of liquid metal with the formation of carbon-depleted regions, as well as isomorphic crystal lattices of the leading phase during crystallization and the ? - phase. The characteristics of the structure of the surface layers of the experimental alloys Fe-Cr-Cu-C after laser treatment and the effect of laser treatment on the tribological characteristics of the alloys under conditions of boundary friction. It is established that above a critical value of plastic deformation ultradispersive structure in some areas is transformed into a qualitatively new state kristalloamorfnoe nanostructure. The investigated alloys are new, have a significant increase in physical, mechanical, tribological properties compared to previously used alloys and their applications in metallurgy and mechanical engineering will provide significant economic benefits Product Description popup.authors Гаврилюк Володимир Петрович Кірієвський Борис Абрамович Лихошва Валерій Петрович Марковський Євгеній Адамович Тихонович Вадим Іванович Шипицин Сергій Якович popup.nrat_date 2020-04-02 Close