High temperature and corrosion properties of cathodic-arc-plasma-deposited CrN coatings
High temperature and corrosion properties of cathodic-arc-plasma-deposited CrN coatings
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阴极电弧等离子体沉积 CrN 涂层的高温和耐腐蚀性能
DOI：
10.1016/s0257-8972(09)90086-x
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Jiann
中科院分区：
文献类型：
--
作者：
F. Lai;Jiann
采用阴极电弧等离子体沉积技术在WC-30 Co基体上沉积了CrN薄膜，研究了氮气气氛和真空退火对CrN薄膜沉积的影响。CrN薄膜主要由CrN和β-Cr 2N相组成。在高温退火下，CrN有可能分解为Cr和Cr 2N相。CrN涂层具有优异的耐蚀性和硬度。动电位测试后的涂层的显微照片仍然显示均匀的富铬和富氮相的腐蚀试样。在1000 °C的N2气氛中退火，CrN涂层试样具有最好的耐腐蚀性和良好的硬度。
CrN film was deposited on a WC-30Co substrate using the cathodic arc plasma deposition process, and the effects of annealing in nitrogen atmosphere and a vacuum chamber were investigated. CrN film comprises mainly CrN andβ-Cr2N phases. Annealed at high temperature, it is possible to decompose CrN to Cr and Cr2N phase. The corrosion performance and hardness of CrN coating are both excellent. Micrographs of a coating after potentiodynamic tests still show homogeneous Cr- and N-rich phases on the corroded specimen. Annealed in an N2atmosphere at 1000 °C, the CrN-coated specimen has the best corrosion resistance and good hardness.