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首页> 外文期刊>Journal of Materials Engineering and Performance >An Investigation on Low-Temperature Thermochemical Treatments of Austenitic Stainless Steel in Fluidized Bed Furnace
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An Investigation on Low-Temperature Thermochemical Treatments of Austenitic Stainless Steel in Fluidized Bed Furnace

机译：流化床炉中奥氏体不锈钢的低温热化学处理研究。

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In this study, the feasibility of using an industrial fluidized bed furnace to perform low-temperature thermochemical treatments of austenitic stainless steels has been studied, with the aim to produce expanded austenite layers with combined wear and corrosion resistance, similar to those achievable by plasma and gaseous processes. Several low-temperature thermochemical treatments were studied, including nitriding, carburizing, combined nitriding-carburizing (hybrid treatment), and sequential carburizing and nitriding. The results demonstrate that it is feasible to produce expanded austenite layers on the investigated austenitic stainless steel by the fluidized bed heat treatment technique, thus widening the application window for the novel low-temperature processes. The results also demonstrate that the fluidized bed furnace is the most effective for performing the hybrid treatment, which involves the simultaneous incorporation of nitrogen and carbon together into the surface region of the component in nitrogen- and carbon-containing atmospheres. Such hybrid treatment produces a thicker and harder layer than the other three processes investigated.
机译：在这项研究中，已经研究了使用工业流化床炉对奥氏体不锈钢进行低温热化学处理的可行性，目的是生产兼具耐磨性和耐蚀性的膨胀奥氏体层，类似于通过等离子处理和奥氏体化可获得的奥氏体层。气态过程。研究了几种低温热化学处理方法，包括渗氮，渗碳，组合渗氮渗碳（混合处理）以及顺序渗碳和渗氮。结果表明，通过流化床热处理技术在所研究的奥氏体不锈钢上生产膨胀奥氏体层是可行的，从而拓宽了新型低温工艺的应用范围。结果还表明，流化床炉是进行混合处理的最有效方法，该混合处理涉及在含氮和含碳气氛中将氮和碳同时掺入到部件的表面区域中。与其他三种研究方法相比，这种混合处理产生了更厚更硬的层。

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