THE THERMOMECHANICAL PROCESSES IN METAL-GLASS COATINGS OF VESSEL CONSTRUCTIONS AND FLOATING FACILITIES FOR RADIOACTIVE CARGO

Abstract

The article describes the thermomechanical processes that occur under the influence of thermal effects in the structure of new metal-glass coatings of constructions of biological protection of vessels and floating facilities, which are intended for transportation and storage of radioactive cargo with a capacity of residual energy 2 ... 20 kW. Two new mathematical models, which describe thermomechanical processes in new types of irradiated coatings at the microand nanoscale has been developed. Those are thermo-mechanical model of behavior of protective metal-glass coating under the influence of thermal effects up to 500 C and the model of surface hardening of the composite layer by the diffusion flux of ionizing radiation. Mathematical models are tested on metalglass materials and coatings with steel and aluminum matrix filled with hollow glass microspheres, powders of sodium silicate and leaded glass. The developed models take into account the structural characteristics of the materials and coatings, allow to evaluate and predict their strength properties.