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Information × Registration Number 0212U005188, 0107U002631 , R & D reports Title Investigation of physico-chemical and heat phenomenons in coating deposition and surface modification under conditions of hybrid and combined laser-plasma processes popup.stage_title Head Borisov Yurii Sergiyovych, Доктор технічних наук Registration Date 29-03-2012 Organization E.O.Paton Electric Welding Institute of the National of Sciences of Ukraine popup.description2 Using the developed mathematical models and numerical simulation, analysis of the process of forming zones of melting zone in sufracing in conditions of combined laser-plasma technology was carried out. It is established that in case of the interaction of the Ar-plasma jet and CO2-laser beam the level of absorption level of the laser beam by the plasma is 70-80% in coaxial and 20-30% in cross-sectional interaction of plasma jet and laser beam. The method of predicting the dynamics of deposition processes in these conditions was proposed. The effect of various factors on hybrid laser-plasma deposition of diamond and diamond-like structure was investigated. The possibility of formation of coatings with a hardness of 30-35 GPa on the steel surface in these conditions was shown . The process of laser-plasma-activated deposition of titanium-based coatings with a hardness of 12-15 GPa was investigated. The advantages of the developed laser-microplasma surfacing and alloying technology over traditional laser are associated with a reduction in crack formation and the level of residual stress, increased uniformity of distribution of alloying elements, which leads to an increased (10-15%) wear-resistanct of layers and the level (1.5 - factor of 2) of operation load limit. Areas and objects of practical application of the developed technologies are identified . The efficiency of their use is proved by combined laser-plasma surfacing of of parts of tube production lines. The durability of parts in case of using this technology is increased by 200 .. 300%. Product Description popup.authors Адєєва Людмила Іванівна Бернацький Артем Валентинович Борисова Алла Лукінічна Войнарович Сергій Григорович Грищенко Олександр Петрович Демченко Володимир Федорович Кислиця Олександр Миколайович Крівцун Ігор Віталійович Кузьмич-Янчук Євген Карлович Кучер Лариса Василійовна Олевська Людмила Павловна Сіора Олександр Васильович Тунік Алла Юріївна Хаскін Вячеслав Юрійович Шелягін Володимир Дмитрійович popup.nrat_date 2020-04-02 Close