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Information × Registration Number 0213U000922, 0112U002786 , R & D reports Title Establishment of influence corrosive-electrochemical factors and flood on opirnist' destruction of pipe staley in sulphuretted hydrogen environments at static and cyclic tensions popup.stage_title Head Khoma Myroslav, Registration Date 26-04-2013 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 Object of research: steel 20 and 17Mn1Si in chloride-sulfide and hydrogen sulfide environments. Purpose of work: the establish to behavior and mechanism of initiation and distribution cracks in the steels of different structure in the hydrogen sulfide environments of different aggressiveness and quantitative correlation between resistance corrosion cracking and corrosion fatigue and by the degree of metals hydrogen saturation. The nonstationary methods of electrochemical investigations was completed. It shown that for such investigations most suitable was impulsive galvanostatic, galvanodynamic methods and cyclic voltamperometry with the rate potential involute. The different methods of determination of hydrogen concentration in metals was analysed. A conclusion was done, that most suitable and operative was a method of anodic oxidization in alkaline solutions at the passivation. It shown that increase in water solutions of sulfides concentration from 0,1 by 0,3 the mol/l reduced in increase, more than on an order, anodic sustaining current, while a maximum cathode current and corrosion rate was not change practically. It shown that exposure steel 20 became in sulfide environments was results to decrease of cathode processes efficiency as compared to chloride environments, that indicated to reaction deceleration of hydrogen segregation the corrosion products. Product Description popup.authors Івашків Василь Романович Антощак Ігор Миколайович Воробель Володимир Ігорович Дячук Алла Іллівна Сисин Галина Михайлівна Чумало Галина Василівна Чучман Мар'ян Романович popup.nrat_date 2020-04-02 Close