METHOD FOR DETERMINING TENDENCY OF MATERIALS TO DEVELOPMENT OF DEFECTS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to welding, in particular to a method u0438u0441u0441u043bu0435u0434u043eu0432u0430u043du0438u00a0 properties of welding materials on the tendency to the formation of defects.the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - improving the accuracy of evaluation and enhancing technological capacity to assess inclination material defects by u0432u044bu00a0u0432u043bu0435u043du0438u00a0 u0432u043bu0438u00a0u043d u0438u00a0 u0442u0435u0440u043cu043eu0434u0435u0444u043eu0440u043cu0438u0440u043eu0432u0430u043d for cycle u0438u0437u043cu0435u043du0435u043du0438u00a0 welding and chemical composition of metal in the education u043du0430u043fu043bu0430u0432u043bu0435u043du043du043eu043c defects in metal. u0434u043bu00a0 that produce a sample in the form of a plate u0445u0438u043cu0441u043eu0441u0442u0430u0432u0430 alternating in the longitudinal direction length.in the transverse direction of u0432u044bu043fu043eu043bu043du00a0u044eu0442 u0440u00a0u0434 identical slots in the shape of a pyramid with a triangular base, u0432u044bu0445u043eu0434u00a0u0449u0438u043c on the side surface of u0442u0440u0435u0443u0433u043eu043bu044c nick at the bottom of the pyramid equilateral side 20 u00b12 mm. the length of the grooves 140 mm + 5, a step between the slots 40 + 2 mm. the persistence length of the cracks in u0442u0440u0435u0449u0438u043du043e - select the slots.as a result, the sample u0441u043eu0437u0434u0430u044eu0442u0441u00a0 u0443u0441u043bu043eu0432u0438u00a0 u0434u043bu00a0 u0432u043eu0437u043du0438u043au043du043eu0432u0435u043du0438u00a0 defects u0437u0430u0432u0438u0441u00a0u0449u0438u0445 from u0445u0438u043cu0441u043eu0441u0442u0430u0432u0430 welding material, welding technology and u0442u0435u0440u043cu043eu0434u0438u043du0430u043cu0438u0447u0435u0441u043au043eu0433u043e cycle and welding. method u043fu043eu0437u0432u043eu043bu00a0u0435u0442 to realize the choice of u0445u0438u043cu0441u043eu0441u0442u0430u0432u0430 material, welding technology and the characteristics of u0441u0432u0430u0440u0438u0432u0430u0435u043cu043eu0441u0442u0438 depending on the u0438u0437u043cu0435u043du0435u043du0438u00a0 u0442u0435u0440u043cu043eu0434u0435u0444u043eu0440u043cu0430 of the welding cycle, 1 u0437.u043f, s - lu, 2 u0438u043b., 1 table. sl with