1 documents found
Позняк Константин Леонидович.
: к.т.н. :
spec.. 05.16.01 - Металознавство та термічна обробка металів :
presented. 1997-10-06; popup.evolution: .;
. – ,
0497U001700.
1 documents found
Updated: 2025-12-07
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0497U001700,
к.т.н.
06-10-1997
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Позняк Константин Леонидович,
popup.head Ершов Г.С.
popup.opponent Кондратюк С.Е.
popup.opponent Мельник О.Б.
Объект исследования: Расплавы и порошки инструментальных сталей и железа. Цель исследования: Создание современных методов повышения физико-механических свойств деталей из порошков железа и инструментальных сталей. Методы исследования и аппаратура: Измерение кинематической вязкости расплавов - метод затухающих колебаний, поверхностное натяжение - метод лежащей капли. Микроструктуру порошков изучали на МИМ-10. Теоретические результаты и новизна: Исследована микронеоднородностьметаллических расплавов и определены размеры микрогруппировок (кластеров) в них. Практические результаты и новизна: Созданы новые технологии получения порошков железа из газонасыщенных расплавов и мелкокристаллических порошков инструментальных сталей. Предмет и степень внедрения: Изготовлены и опробованы опытно-промышленные партии порошков железа. Эффективность внедрения: Улучшены физико-технологические свойства порошков (формуемость, прессуемость, насыпная плотность), получена высокоразвитая поверхность порошинок. Сфера (область) использования: Производство порошковых инструментальных сталей.
1997-10-06
2020-05-17
Updated: 2025-12-07
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