论文部分内容阅读
在—台高温天平装置上对固态猛铁进行了氮化处理．氮化速度及吸氮量与温度、金属成分和粒度有关．在完全转化的物料中得到的含氮量在２．７—９．２ｗｔ％之间。相分析表明，低碳锰铁生成的是硅氮化物ＭｎＳｉＮ２和碳氮化物（Ｍｎ．Ｆｅ）４（Ｃ，Ｎ）的混合物，其相对数量取决于物料的初始成分．高碳锰铁的分析表明，是氮置换了（Ｍｎ．Ｆｅ）碳化物晶格中的碳，氮化速度主要取决于温度和粒度．
Solid-state iron was nitrided on a high-temperature balance. Nitriding rate and nitrogen uptake are related to temperature, metal composition and particle size. The nitrogen content obtained in the completely converted material is between 2.7 and 9.2% by weight. Phase analysis shows that the low carbon ferromanganese generates a mixture of silicon nitride MnSiN2 and carbonitride (Mn.Fe) 4 (C, N), the relative amount of which depends on the initial composition of the material. Analysis of high-carbon ferromanganese shows that nitrogen replaces carbon in the (Mn.Fe) carbide lattice, and the nitriding rate depends mainly on temperature and particle size.