Ordered C vacancies in titanium carbides: a correlation between crystal structure and the effects on oxidation behavior at elevated temperature

It has been widely accepted that the introduction of titanium carbides into titanium-based alloys can significantly enhance the oxidation resistance due to their superior physicochemical stability at elevated temperatures. The present study reported for the first time that the ordered C vacancies wi...

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Veröffentlicht in:arXiv.org 2017-10
Hauptverfasser: Shaolou Wei, Huang, Lujun, Zhu, Yuntong, Shi, Zhe, Lin, Geng
Format: Artikel
Sprache:eng
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Zusammenfassung:It has been widely accepted that the introduction of titanium carbides into titanium-based alloys can significantly enhance the oxidation resistance due to their superior physicochemical stability at elevated temperatures. The present study reported for the first time that the ordered C vacancies within titanium carbides could lead to an uncommon phenomenon particularly at the very initial stage of oxidation. The intrinsic micro-to-macro oxidation mechanisms were systematically clarified with the aids of transmission electron microscope and ab-initio molecular dynamics simulation.
ISSN:2331-8422
DOI:10.48550/arxiv.1710.09311