METHOD OF ASSESSING SENSITIVITY OF CORROSION-RESISTANT STEEL TO INTERCRYSTALLINE CORROSION

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to test technology and can be used u0434u043bu00a0 evaluation tendency to intercrystalline corrosion (icc) of corrosion resistant steels and cpf u0430u0432u043eu0432 working in aggressive environments. to increase the reliability of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 method by taking into account the structural u0441u043eu0441u0442u0430u0432u043bu00a0u044eu0449u0438u0445 and by u0441u0440u0430u0432u043du0435u043du0438u00a0 with backwards the intended size.the sample u043fu043eu0442u0435u043du0446u0438u043eu043au0438u043du0435u0442u0438u0447u0435u0441u043au0438 u043fu043eu043bu00a0u0440u0438u0437u0443u044eu0442 in u0430u043du043eu0434u043du043eu043c and u043au0430u0442u043eu0434u043du043eu043c u043du0430u043fu0440u0430u0432u043bu0435u043du0438u00a0u0445 registration current potential curves. further u0440u0430u0441u0441u0447u0438u0442u044bu0432u0430u044eu0442u0441u00a0 parameter k = Cu043a.Su043eu0431 / Cu0430.Su0447u0437 where Cu043a and here is the area under u043fu043eu0442u0435u043du0446u0438u043eu043au0438u043du0435u0442u0438u0447u0435u0441u043au0438u043cu0438 u0430u043du043eu0434u043du043eu0439 and cathodic curves, Su0447u0437 area boundaries of grains at the top of Su043eu0431, interactive with the environment.compared with the standard value of k Ku0441u0442 - parameter characterizing the tendency to corrosion. if k * 98Ku0441u0442 material prone to the icc if KKu0441u0442 material prone to icc. 1, table 2).