On the mechanisms of a plasma diffusion treatment of metallic substrates with controlled actice screen plasma nitriding

可控活性屏等离子体渗氮对金属基体进行等离子体扩散处理的机理研究

基本信息

批准号：
211499277
负责人：
Professor Dr.-Ing. Horst Biermann
金额：
--
依托单位：
Leibniz-Institut für Plasmaforschung und Technologie e.V. (INP)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2011
资助国家：
德国
起止时间：
2010-12-31 至 2015-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/211499277?language=en
关键词：
mechanisms plasma diffusion treatment metallic

项目摘要

The research project aims to contribute to increase knowledge of the essential mechanisms of plasma diffusion treatment of ferrous materials with an active screen in different media, particularly carbon-containing media. The development of sound knowledge of the active screen plasma treatment, depending on the effective mechanisms serves a better understanding of the plasma processes. The study of the dependencies between the reactions occurring in the plasma and on the nitriding results obtained on selected ferrous materials achieves the foundations for the targeted production of nitrided layers and nitrocarburized cases with a defined layer structure on different ferrous alloys. Their knowledge is essential for the detachment of the current empirical process control through a science-based controlled process, the controlled plasma nitriding and nitrocarburizing.The analysis of the main mechanisms makes the application of powerful methods of plasma diagnostics necessary. As is apparent from the work report, the close interdisciplinary cooperation between the INP Greifswald plasma physicists and materials engineers from the IWT Freiberg in the first funding period was very beneficial. By the first application of in situLaser spectroscopy (LAS) in combination with ex-situ Fourier transform infrared spectroscopy (FTIR), and the Langmuir probe diagnostic for the analysis of the basic processes of the plasma diffusion treatment a contribution to a better understanding of the general, for this process characteristic mechanisms was done. This is especially true for the interpretation of the effectof CO2 and CH4 additions to the process gas. On the basis of the new insights gained through the continued cooperation a new understanding of the processes is expected.The development of a concept for industrially applicable methods of process monitoring and control is part of the work for plasma diagnostics.

该研究项目旨在提高对在不同媒体（尤其是含碳介质）中主动屏幕的血浆扩散处理基本机制的了解。根据有效机制的不同，主动筛选等离子体处理的合理知识的发展可以更好地理解等离子体过程。对等离子体中发生的反应的依赖性与选择的硝化结果之间的依赖关系，这是在选定的亚铁材料上获得的硝化结果，这实现了针对硝化层的靶向产生的基础，并在不同的铁合金上具有定义的层结构。他们的知识对于通过基于科学的受控过程，受控等离子体硝化和硝化碳进行的当前经验过程控制至关重要。对主要机制的分析使得需要使用强大的血浆诊断方法。从工作报告中可以明显看出，INP Greifswald等离子物理学家与IWT Freiberg的材料工程师之间的紧密跨学科合作非常有益。通过首次应用Situlaser光谱法（LAS）与前辅助傅立叶变换红外光谱（FTIR）和Langmuir探针诊断结合使用，以分析血浆扩散处理的基本过程，这有助于对总体了解这种过程的特征机制的一般理解有助于。解释二氧化碳和CH4在工艺气体中的效果尤其如此。基于通过持续合作获得的新见解，对过程的新理解。开发工业适用的过程监测和控制方法是血浆诊断工作的一部分。