Abstract This work confirms the possibility of the application of a plasma nitriding technique, with a cathodic cage, for lining pipelines through the deposition of thin nitride films. The process using the cathodic cage technique is based on the simultaneous use of multiple hollow cathode effects. Thus, is possible to obtain a uniform lining promoving an increase in the hardness and corrosion resistance of treated samples, with elimination of edge and shadow effects in the nitrided layer. The cage is made of austenitic stainless steel AISI 316, containing a removable lid and holes with well defined diameters and distances between adjacent holes. Combining the tension and pressure in the process results in the possible occurrence of the hollow cathode effect in all holes. The material removed by sputtering is transferred to the workpiece surface. In this application, the cage in which a cathodic potential is applied is surrounded by the samples to be treated (glass tubes and 316 steel plate). The XRD analysis confirmed the deposition of iron nitrides in the presence of phases that are also seen in samples treated on the inside of the cage, which allows simultaneous treatment of internal and external samples in relation to the cage.

中文翻译：

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使用阴极笼等离子氮化技术的管道内涂层

摘要 这项工作证实了应用等离子渗氮技术和阴极笼，通过沉积薄氮化物薄膜来衬砌管道的可能性。使用阴极笼技术的过程基于同时使用多个空心阴极效应。因此，可以获得均匀的衬里，促进处理样品的硬度和耐腐蚀性的增加，同时消除氮化层中的边缘和阴影效应。保持架由奥氏体不锈钢 AISI 316 制成，包含一个可拆卸的盖子和具有明确定义的直径和相邻孔之间距离的孔。结合过程中的张力和压力导致可能在所有孔中发生空心阴极效应。通过溅射去除的材料被转移到工件表面。在此应用中，施加阴极电位的笼子被待处理的样品（玻璃管和 316 钢板）包围。XRD 分析证实了在存在相的情况下氮化铁的沉积，这些相也见于在笼子内部处理的样品中，这允许同时处理与笼子相关的内部和外部样品。