Search academic texts

Information × Registration Number 0224U032055, 0123U104047 , R & D reports Title Processes of processing and anti-corrosion protection of metals and identification of the resource value of metal-containing industrial waste popup.stage_title Head Nenastina Tetiana O., Доктор технічних наук Registration Date 17-07-2024 Organization Kharkiv National Automobile and Road University popup.description2  The object of the study is the processes of chemical dissolution of the BrB2 alloy in various electrolytes, anti-corrosion protection of St3 steel from corrosion by paint coatings, physico-chemical laws of dissolution of copper-zinc electroplating sludge of various degrees of heat treatment, correlation between the chemical and mineralogical composition of blast furnace slag of JSC "Zaporizhstal" and indicators of modular classification of industrial waste suitable for use in the construction industry. The purpose of the work: optimization of the technological process of etching of beryllium bronze BrB2; carrying out a comparative analysis of the effectiveness of paint coatings of various origins to justify their use in anti-corrosion protection of metals; determination of the chemical, mineralogical composition and toxicity of industrial waste for the development of recommendations for their disposal and secondary use as raw materials in the production of construction materials. Research methods: gravimetric, desiccator, X-ray phase analysis, electron-probe microanalysis, atomic absorption spectrometry, method of changing the electrochemical potential over time, Brinell hardness determination. The technological process of beryllium bronze etching was optimized based on the results of the research on the etching rate of BrB2, its changes over time and the selectivity of dissolution of the alloy components. Proposed compositions of electrolyte solutions that provide high-speed, long-term chemical etching, with a high capacity for BrB2 alloy components. The effectiveness of paint coatings when applied in anti-corrosion protection of St3 steel was determined. As the main physico-mechanical properties as comparative indicators of the quality of coatings, the following were studied: water absorption, porosity, penetration time of aggressive solutions throughout the coating. It has been proven that the use of polyester powder paint UD-1028-07040-T in conditions involving Product Description popup.authors Yehorova Liliia M. Datsenko Vita V. Khobotova Elina B. popup.nrat_date 2024-07-17 Close