METHOD OF DETERMINING CRITICAL TEMPERATURE OF BRITTLENESS OF METALLIC STRUCTURAL MATERIALS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to study the mechanical properties of the materials, namely, the ways of u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 critical temperature fragility. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 improved accuracy when testing materials with a vaguely expressed u0444u0440u0430u043au0442u043eu0433u0440u0430u0444u0438u0435u0439.the results u0434u043bu00a0 impact test specimen with the incision pattern u0442u0440u0435u0445u0442u043eu0447u0435u0447u043du043eu0433u043e bending at different temperatures range u0432u00a0u0437u043au043eu0445u0440u0443u043fu043au043eu0433u043e transition definition u043bu00a0u044eu0442 shock u0432u00a0u0437u043au043eu0441u0442u044c u0443u043fu0440u0443u0433u043eu043fu043bu0430u0441u0442u0438u0447u0435u0441u043au043eu0439 deformation model and u0438u043du0438u0446u0438u0438u0440u043eu0432u0430u043du0438u00a0 cracks in it.set u0442u0435u043cu043fu0435u0440u0430u0442u0443u0440u043du0443u044e dependence of this parameter and the critical temperature fragility are temperature, corresponding to the drastically reduced u0438u00a0 shock u0432u00a0u0437u043au043eu0441u0442u0438 on temperature dependence.