Klochichin V. Material science bases of heat-resistant nickel alloys obtaining processes for turbine blades using technological return

The dissertation is devoted to solving an important scientific and practical task - the development of materials bases of processes of obtaining high - quality heat - resistant nickel alloys with the use of technological return and application of modern methods of refining. In these alloys, as well as in finished cast products, mechanical, technological and operational properties are provided at the level of products made of primary materials. As a result of the research, theoretical ideas about the influence of the temperature gradient on the crystallization front of nickel alloys under conditions of high-speed directional crystallization was further developed. Theoretical ideas about high-temperature treatment of foundry melt were further developed. The cluster mechanism microgroups behavior in the conditions of high-temperature processing of the melt has been studied. Тested in production conditions and production of Zh6K-VI, ZhS3DK-VI, ZhS26-VI and ZhS32-VI alloys using in the charge up to 100% foundry return.