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Повышение ударной вязкости среднемарганцевой TRIP-стали 0,2 % C - 6 % Mn - 3 % Al за счет эволюции микроструктуры при термической обработке

Моу Яньцзе, Ли Синьцзин, Ли Чжичао, Мисра Дэвеш, Цай Чжихуэй, Хэ Ляньфан, Ли Хуэйпин

Аннотация


Исследована возможность повышения ударной вязкости среднемарганцевой TRIP-стали Fe - 0,2 % C - 6 % Mn - 3 % Al за счет применения новой термической обработки, включающей закалку из межкритического интервала температур и последующий отпуск. Проведены электронно-микроскопические и рентгеноструктурные исследования стали после термической обработки. Определен режим закалки, при использовании которого достигается наиболее высокая ударная вязкость.

Ключевые слова


evolution of microstructure; medium-manganese steels; impact toughness; volume fraction of austenite; fracture behavior

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Литература


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