铁-氮化合物微粒被认为是活性屏离子渗氮过程中活性氮原子的主要输运载体,试验采用既不吸附氮也不与氮反应生成化合物的铜制活性屏和纯氮气氛,在没有铁-氮化合物微粒的情况下,对45钢试样进行渗氮处理。结果表明,在此条件下,45钢存在渗氮层,渗氮过程除依托铁-氮化合物输运外,活性氮原子还有其它重要的不可忽视的输运方式。 The iron-nitrogen compound particles are considered as the main transporter of active nitrogen atoms in the active screen ion nitriding process. The active screen and the pure nitrogen atmosphere of copper are used, which do not adsorb nitrogen and react with nitrogen. In the absence of iron In the case of nitrogen compound particles, a 45 steel sample was nitrided. The results show that there is nitrided layer in 45 steel under this condition. In addition to iron - nitrogen compound transport, there are other important non - negligible transport modes for active nitrogen atoms.