Search academic texts

Information × Registration Number 0210U003465, 0107U000534 , R & D reports Title Alternative composite materials with self-ordering interface and quasi-crystalline strengthening popup.stage_title Head Spyrydonova Iryna Mikhaylivna, Registration Date 04-02-2010 Organization Dniepropetrovsk national university popup.description2 The object of research is resource-saving composition materials with self-ordering interface and quasi-crystalline strengthening. Aim of the research is determination of conditions and main mechanism of resource-saving composition materials formation strengthened by the quasi-crystals with using of new approach to boundary structure control based on self-order and structure renovation. In process of investigation the methods of microstructure, quantitative metallographic, photoemission spectroscopy, differentiated thermal, X-ray structural, quantitative chemical, electron microscope, local microrentgenospectral analysis, microdurometer method for measurement of brittleness and comparative wear method were used. In this work the microscopes of "Neophot-21", "EPIQUANTUM", EPITYP-2, durometer PMT-3, X-ray apparatus "DRON-3M", steeloscope SL-11А, photoelectric calorimeter КFК-2, device VUP-4, electron microscope ЕМ-200, electron scanning microscope "JSM-6490LV" were used. The qualified scientists and engineers with using of modern equipments and approved advanced techniques, the mathematical and statistical data manipulations were provided a reliability, accuracy and correctness of the findings. The structure forming mechanism and thermodynamic stability conditions for the quasi-crystal metastable phases and solid solutions, structure, physical, chemical, mechanical properties, meant for strengthening and decrease in brittleness of composition materials have been determined. The compositions of the new resource-saving composition materials and composition materials technologies with using of impregnation, suspension casting, laser surfacing, detonation treatment, plasmachemical treatment have been developed. The findings of investigation of the physical-mechanical properties for the composite alloys including quasi-crystalline structures and new approach to alloying systems selection for iron-boron and aluminum alloys can be used on formation of the new competitive composition materials and a new alloys types with unique properties, process variable optimization for their treatment, structure-sensitive characteristics control in accordance with desired exploitation requirement. Product Description popup.authors Антропова Валентина Іванівна Безрукава Оксана Григорівна Бутенко Валерій Феодосієвич Дорогань Кирил Ігоревич Зінковський генадій Валентинович Здоровець Наталія Олександрівна Карпенко Надія Валерієвна Коваль Ніна Павлівна Колюча Валентина Дмитрівна Макаренко Олег Дмитрович Мостовий Володимир Іванович Піляєва Світлана Борисівна Спиридонова Ірина Михайлівна popup.nrat_date 2020-04-02 Close