论文部分内容阅读
本发明论述金属工件通过辉光放电进行离子氮化的工艺。离子氮化是硬化金属工件表面的一种方法,采用这一方法,工件受含氮气氛中由辉光放电所产生的氮离子的轰击而氮化。通常使用氮和氢的混合气作氮化介质,此时工件受氮离子、氢离子的轰击而被加热并从表面释放出 Fe 原子,Fe 原子和 N 原子反应生成 FeN。FeN 凝附于被离子轰击而净化了的工件表面,使氮势增高。通过这种机理,在金属工件上
The present invention deals with the process of ion nitriding metal workpieces by glow discharge. Ion nitriding is a method of hardening the surface of metal workpieces. In this method, the workpiece is nitrided by bombardment of nitrogen ions generated by glow discharge in a nitrogen-containing atmosphere. Nitrogen and hydrogen gas mixtures are usually used as the nitriding medium. At this time, the workpiece is heated by the bombardment of nitrogen ions and hydrogen ions to release Fe atoms from the surface, and the Fe atoms and N atoms react to form FeN. FeN adhered to the ion bombardment and purification of the workpiece surface, the nitrogen potential increased. Through this mechanism, on the metal workpiece