Melnikov O. The development of the method of finding perfect parameters of hot isostatic pressing of new powder materials on basis of the computer modelling

The subject of research is the technology of hot isostatic pressing (HIP) of powder materials. The purpose of a research is the increasing effects of projecting hot isostatic pressing of powder materials on basis of improving the method for founding the rational parameters of this process. Researching methods and equipment are theoretical and experimental analysis, devices, facilities and equipment, standard equipment, computes. The theoretical and practical results are following: the new computer program for modelling densification of powder materials at hot isostatic pressing was developed; the mechanical properties and density function of some powders were found by experiments. Novelty of introducing new equipment is following: the mathematical model of densification of powder materials at hot isostatic pressing are improved. The mechanical properties at different temperatures and density function of some powders were found; the fact that at HIP-conditions the creep is better described by Norton's law and sometimes by Dorn's law is pointed. Also the fact that density function of one material do not depend on temperature and pressure is pointed. To found the full-densification time with 10%-variation the variation of founding materials properties and density function must be 5%-10%. A degree of introduction - computer program for modelling the powder densification at HIP (there are acts of introduction). Field of use - researching and education processes at HIP-powder.