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Information × Registration Number 0207U002167, 0102U003956 , R & D reports Title Mining a methodology, realization of researches and estimation of a degradation of pattern, phase and chemical structure of constructional steels after long-lived exploitations in composite conditions. popup.stage_title Head Grigorenko Georgiy, Registration Date 17-01-2007 Organization E.O.Paton Electric Welding Institute of the National of Sciences of Ukraine popup.description2 As a result of integrated investigations (15 methods) of metal of industrial facilities (heat units, bridges, gas pipelines, etc.) after long-term service, it was found that the fatigue life of this metal is affected by integrated simultaneous action of several factors: loading mode, temperature variation (stable, cyclic,) of the environment or contacting medium. Metal destruction results from formation on the mesolevel (intergranular) of chemical and physical in homogeneity, local anisotropy of mechanical properties, formation of fine non-metallic inclusions. Metal macrostructure does not undergo any significant changes. Product Description popup.authors popup.nrat_date 2020-04-02 Close