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一、引言《关于铁在稀释的氨气中氮化的热力学问题》一文指出了用氢稀释氨使ε相区缩小,即抑制白层的形成,从而纠正了Beloruchev等关于用氢稀释氨能扩大ε相区的错误结论。但是该文认为用氮稀释也能缩小ε相区的结论以及不能用氮势衡量氨一氮混合气体的氮化能力的观点是值得商榷的。文章中已列出一些工业生产的统计结果来证实氮稀释氨气能扩大ε相区。我们的试验也认为用适量的氮气稀释氨气能有利
I. INTRODUCTION The article “On the Thermodynamics of Nitriding Iron in Diluted Ammonia” states that the dilution of ammonia with hydrogen reduces the area of the ε phase, ie suppresses the formation of white layers, thus correcting Beloruchev et al. ε phase region error conclusion. However, it is arguable that the conclusion that the dilution of the ε-phase region with nitrogen and the nitriding potential of the ammonia-nitrogen mixed gas can not be quantified by nitrogen dilution are debatable. In the article, some industrial production statistics are listed to confirm that nitrogen dilution of ammonia can enlarge the ε phase region. Our experiment also considers it advantageous to dilute the ammonia with a suitable amount of nitrogen