Study On Plasma Nitriding By The RE Catalysis Of 42CrMo Steel

In this paper, I studies the preparation and process. The production of RE alkoxides uses the principle of exothermic reaction occurred with compounds in the catalyst. It is made of outsourcing of anhydrous chloride (LaCl3, CeCl3) and self-made methanol sodium in the benzene catelysting with RE's lively nature of chemical.The 42CrMo steel RE (rare earth chloride and rare-earth alkoxides) reminders seepage - nitride layer with ustrition of plasma nitriding facility. In different RE(chloride solution of ethanol were: 0.1g/l, 0.4g/l, 0.6g/l, 0.8g/l, 1.2g/l) with the same time (seven hours), the same temperature (520℃) studies the RE catalysis. However,considering the negative factors on the steel base and layer with the chlorine elements in RE chloride. At the same time RE alkoxides altered RE chloride in different RE(ethanol alcohol salt solution were: 0.5g/l, 1g/l, 1.5g/l, 2g/l) with the same time (seven hours), the same temperature (520℃).It improves nitride speed and layer thickness in plasma nitriding by the RE catalysis with the same time (seven hours), the same temperature (520℃) comparing the no-RE plasma nitriding in the same conditions. The addition of RE elements played a alloying role, explores the characteristics and advantages of the plasma nitriding by the RE catalysis, reveals the impact of the nitride layer with the fact of plasma nitriding.