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首页> 外文期刊>Surface & Coatings Technology >Wear and corrosion performance of WC-10Co4Cr coatings deposited by different HVOF and HVAF spraying processes
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Wear and corrosion performance of WC-10Co4Cr coatings deposited by different HVOF and HVAF spraying processes

机译：HVOF和HVAF喷涂工艺沉积的WC-10Co4Cr涂层的磨损和腐蚀性能

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摘要

This study compares three types ofWC-10Co4Cr coatings deposited with high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) spraying processes. The experimental results indicated that the decarburisation of the WC in the WC-10Co4Cr coating was dramatically influenced by the spraying equipment, and the non-WC phase content in the as-sprayed coatings greatly influenced their performances. The HVAF-sprayed WC-10Co-4Cr coating revealed the lowest degree of decarburisation, achieving the best properties in terms of hardness, fracture toughness, abrasive and sliding wear as well as electrochemical corrosion resistance when compared to the two HVOF-sprayed WC-10Co-4Cr coatings.
机译：本研究比较了三种类型的WC-10Co4Cr涂层，它们分别采用高速氧气燃料（HVOF）和高速空气燃料（HVAF）喷涂工艺沉积。实验结果表明，喷涂设备极大地影响了WC-10Co4Cr涂层中WC的脱碳，喷涂后涂层中的非WC相含量极大地影响了其性能。与两次HVOF喷涂的WC-10Co相比，喷涂HVAF的WC-10Co-4Cr涂层显示出最低的脱碳程度，在硬度，断裂韧性，磨蚀性和滑动磨损以及耐电化学腐蚀方面达到了最佳的性能。 -4Cr涂层。

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