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首页> 外文期刊>International Journal of Refractory Metals & Hard Materials >Wear Characteristics and Performance of Composite Alumina-Zirconia CVD Coatings
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Wear Characteristics and Performance of Composite Alumina-Zirconia CVD Coatings

机译：氧化铝-氧化锆复合CVD涂层的磨损特性和性能

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摘要

Alumina-zirconja (Al_2O_3-ZrO_2) composite CVD coatings have been developed for use in multilayered coatings on cemented carbide cutting tools. A composite coating containing 30-40percent ZrO_2 was machine tested as part of a WC-Co substrate/Ti(C,N)/Al_2O_3/Al_2O_3-ZrO_2 coating configuration to analyze wear mechanisms. A range of composite compositions was also tested to measure performance. The composite coating is most effective in applications where failure mechanisms are driven by temperature and chemical diffusion. The composite coating reduces heat transfer to the substrate thus reducing deformation related cracking. It also reduces crystallite growth during CVD and provides a smoother coating than pure A1_2O_3.
机译：已经开发出氧化铝-锆石（Al_2O_3-ZrO_2）复合CVD涂层，用于硬质合金切削刀具上的多层涂层。对包含30-40％ZrO_2的复合涂层进行了机械测试，作为WC-Co基材/ Ti（C，N）/ Al_2O_3 / Al_2O_3-ZrO_2涂层配置的一部分，以分析磨损机理。还测试了一系列复合材料组合物以测量性能。在故障机制受温度和化学扩散驱动的应用中，复合涂层最有效。复合涂层减少了向基底的热传递，从而减少了与变形有关的裂纹。与纯Al 2 O 3相比，它还减少了CVD过程中的微晶生长，并提供了更光滑的涂层。

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