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Interfaces between Model Co-W-C Alloys with Various Carbon Contents and Tungsten Carbideстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
- Авторы: Konyashin Igor, Zaitsev Alexander, Meledin Alexander, Mayer Joachim, Loginov Pavel, Levashov Evgeny, Ries Bernd
- Журнал: Materials
- Том: 11
- Номер: 3
- Год издания: 2018
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 404
- DOI: 10.3390/ma11030404
- Аннотация: Interfaces between alloys simulating binders in WC-Co cemented carbides and tungsten carbide were examined on the micro-, nano-, and atomic-scale. The precipitation of fine WC grains and η-phase occurs at the interface of the alloy with the low carbon content. The precipitation of such grains almost does not occur in the alloy with the medium-low carbon content and does not take place in the alloy with the high carbon content. The formation of Co nanoparticles in the binder alloy with the medium-low carbon content was established. Interfaces in the alloy with the medium-low carbon content characterized by complete wetting with respect to WC and with the high carbon content characterized by incomplete wetting were examined at an atomic scale. The absence of any additional phases or carbon segregations at both of the interfaces was established. Thus, the phenomenon of incomplete wetting of WC by liquid binders with high carbon contents is presumably related to special features of the Co-based binder alloys oversaturated with carbon at sintering temperatures.
- Добавил в систему: Меледин Александр Александрович