Corrosion Science ( IF 7.4 ) Pub Date : 2021-09-23 , DOI: 10.1016/j.corsci.2021.109843 Ronja Anton 1 , Steffen Hüning 2 , Nadine Laska 1 , Matthias Weber 3 , Steven Schellert 3 , Bronislava Gorr 4 , Hans-Jürgen Christ 3 , Uwe Schulz 1
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The insufficient oxidation resistance of Mo-Si-B alloys at high temperatures inevitably requires a protective coating. A dual layer system combining a graded Mo-Si interlayer with a Si oxidation protective top layer has been applied by magnetron sputtering on a Mo-9Si-8B alloy. The interlayer architecture was designed to maximize the adhesion between top layer and substrate by creating thermodynamic compatibility between alloy and Si. Isothermal oxidation tests at 800 and 1200 °C in air up to 300 h were performed focusing on chemical reactions between top layer, interlayer and substrate as well as the evolution of the thermally grown SiO2.
中文翻译：
Si涂层和Mo-Si-B合金之间的渐变PVD Mo-Si夹层：氧化行为研究
Mo-Si-B合金在高温下的抗氧化性不足，不可避免地需要保护涂层。通过磁控溅射在 Mo-9Si-8B 合金上应用了一种双层系统，该系统将渐变 Mo-Si 夹层与 Si 氧化保护顶层相结合。夹层结构旨在通过在合金和 Si 之间建立热力学兼容性来最大限度地提高顶层和基板之间的附着力。在 800 和 1200 °C 的空气中进行了长达 300 小时的等温氧化测试，重点是顶层、中间层和衬底之间的化学反应以及热生长的 SiO 2的演变。
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