Search academic texts

Information × Registration Number 0217U001348, 0116U000920 , R & D reports Title Development of novel technologies of nanostructured materials with rising survice life, corrosion and mechanical resistance for restoring articles of double application popup.stage_title Head Ved Maryna, Доктор технічних наук Registration Date 07-02-2017 Organization The Kharkov state polytechnical university popup.description2 The objects of research are physical and chemical processes of formation of nanostructured materials and alloy coatings based on metals of the iron triad and refractory elements. Purpose of work - develop methods to control and technological parameters of physical and chemical processes of synthesis of nanostructured multicomponent alloy coatings for corrosion resistance, micro-hardness and abrasion resistance of low carbon steel and cast iron, to ensure the effective recovery of worn parts, and dual-use equipment capable of ensuring the production of high-tech products enterprises mechanical engineering. According to the research the regularities electrosynthesis ternary alloys of cobalt and iron with refractory rare metals are established. It is shown that the flexible control of composition of synergistic alloys in a wide range of alloying components is achieved by varying the concentration of the electrolyte composition, energy and temporal parameters of electrolysis. The expediency of the use of pulsed current for co-deposition of iron triad metal with tungsten, molybdenum and zirconium is shown and the effect of the current density and the ratio of the duration of the pulse / pause on the coatings quality and efficiency of electrolysis determined. It is shown that the composition and morphology of the coating surface predetermine functional properties, namely wear and corrosion resistance. It is found that the ternary coatings are synergistic, effect identified components on the surface of the structure, roughness and chemical resistance of the materials is obtained. Methodological approaches applying wear and corrosion resistant coatings of different thicknesses on different product configurations were designed. TERNARY ALLOYS, BILIGANDN ELECTROLYTE, COMPLEX, PULSE ELECTROLYSIS, SURFACE MORPHOLOGY, CORROSION RESISTANCE, MICROHARDNESS, SYNERGISTIC ALLOYS Product Description popup.authors Єлісєєв Олександр Володимирович Єрмоленко Ірина Юріївна Ведь Марина Віталіївна Верпека Олександр Володимирович Гапон Юліана Костянтинівна Зюбанова Світлана Іванівна Каракуркчі Ганна Володимирівна Козяр Марина Олексіївна Лагдан Інна Володимирівна Поспєлов Олександр Петрович Проскуріна Валерія Олегівна Сахненко Микола Дмитрович Сачанова Юлія Іванівна Славкова Марина Олександрівна popup.nrat_date 2020-04-02 Close