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Information × Registration Number 0201U005344, 0100U004854 , R & D reports Title The evaluation of the effect of hydrogen containing environments on workability of welding joints in structural steels popup.stage_title Head ANDREJKIV Oleksandr Yevgenovych, Registration Date 21-06-2001 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 Assessment of the influence of hydrogen-containing environments on service-ability of structural steels welded joints. Investigation object - welded joints, operating in hydrogen- containing environments under the effect of variable temperatures and loads. Aim - creation of theoretical and experimental approaches to assensing the serviceability of welded joints. Insvestigation methods - theoretical and experimental. A calculational method of hydrogen corrosion curves construction (Nelson curves) for welded joints materials was created. A theoretical and experimental methods for evaluating the hydrogen-temperature fracture of welding joints of different steels was developed. A mathematical model of fatigue crack propagation under hydrogen environment effect was proposed. Method for determening the hydrogen diffusion parameters (permeability, diffusion coefficient, solubility) in welded joints materials and their mechanical characteristics were developed. Applications fields: power generating industry, p etroleum and gas extractive industry and petroleum refining industries. Product Description popup.authors popup.nrat_date 2020-04-02 Close