Effect of reaction of rare earth to oxygen o n catalysis effect in plasma nitriding process catalyzed by rare earth has been s tudied with X-ray diffractometer and scanning electron microscopy.

• 利用X射线衍射仪和扫描电镜研究了稀土催渗离子渗氮过程中，稀土与氧之间的作用对催渗效果的影响。