УСЛОВИЯ ПОЛУЧЕНИЯ СПЛАВОВ СО СТРУКТУРОЙ ЗАМОРОЖЕННОЙ МИКРОЭМУЛЬСИИ И МГД-ТЕХНОЛОГИЯ ВЫПЛАВКИ РАСПЛАВА МЕДИ С УЛЬТРАДИСПЕРСНЫМИ КАПЛЯМИ НА ОСНОВЕ FeCrC
Ключові слова:
мідні сплави, монотектична система, зона незмішування, емульгований розплав, ультрадисперсні включення, електромагнітний вплив, струмоз’ємні вставкиАнотація
Проаналізовано фактори, що впливають на формування однорідної емульсії з ультрадисперсними краплями (<1 мкм) в розплавах з областю незмішування і отримання структури типу «замороженої мікроемульсії» в литому стані. Розглянуто технології отримання монотектичних мідних сплавів дисперснозміцнених включеннями на основі FeCrC, які дозволяють досягти розміру зміцнюючої фази >3 мкм. Розроблена нова МГД-технологія отримання спеціальних мідних сплавів, зміцнених ультрадисперсними і рівномірно розподіленими включеннями на основі FeCrC, з підвищеними експлуатаційними характеристиками.
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