The research field of this thesis belongs to heat treatment in metal materials . ionic nitriding is a universal applied technique, which involves lots of marginal subjects such as discharge physics, vacuum, chemistry, electronics and materials science 该课题属于金属材料热处理领域,离子氮化是一门综合性的应用技术,涉及到了放电物理、真空、化学、电子学、材料科学等多门边缘学科。
The thesis focuses on the manufacture practice and the characteristic of ionic nitriding . the emphasis is placed on the research of plasma nitriding principle, nitriding technics and operation, test on the microstructure and performance of the nitrification layer 该课题着力于生产实践,围绕离子氮化技术特点,注重理论联系实践,介绍了等离子渗氮原理、渗氮工艺和操作、离子渗氮层组织性能的检测。
Strengthening mechanism of ion nitriding is different from surface quenching and cementation, which makes surface strengthen by quenching to get martensite . ionic nitriding is the way to make materials strengthe n, which result from the steady compound formed on the surface of the metal . there is no need for quenching after treatment 离子渗氮的强化机理不同于表面淬火,渗碳等表面热处理方法,这些方法必须进行淬火得到马氏体使表面强化,而离子渗氮是在金属表面形成稳定化合物而使材料强化,处理后不须淬火。