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Oxidation behavior of Ti-B-C-N coatings deposited by reactive magnetron sputtering

Xiangyang Chen, Shengli Ma, Kewei Xu, Paul K. Chu

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Abstract

    Quaternary Ti-B-C-N coatings with different carbon concentrations are deposited on high-speed steel substrates by reactive magnetron sputtering. The oxidation behavior between 300 and 800°C under ambient conditions is studied by scanning electron microscopy, high-resolution transmission electron microscopy, Vickers micro-hardness, and X-ray diffraction. The Ti-B-C-N coatings with smaller carbon contents have better oxidation resistance and the oxidation process can be divided into two stages: low-speed oxidation below 700°C and high-speed oxidation above 700°C. An oxidation mechanism is proposed to explain the relationship between the reaction with oxygen and observed oxidation behavior. © 2012 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)1505-1512
    JournalVacuum
    Volume86
    Issue number10
    DOIs
    Publication statusPublished - 27 Apr 2012

    Research Keywords

    • Oxidation behavior
    • Reactive magnetron sputtering
    • Ti-B-C-N coatings

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