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钢中氮主要形成氮化物、固溶氮及其他少量含氮化合物,成分子状态的氮存在于钢的孔隙中其量极微。用化学分析方法测定钢中氮,一般包括氮化物中氮和固溶体中原子状态的氮。钢中氮化物的形成与钢中存在的元素种类、含量有关,同时和钢的冶炼、加工,热处理工艺也有密切的关系。金属元素在钢中与氮的化学亲合力不同,一般趋势,按亲合力由强到弱,排
Nitrogen mainly forms nitrogen, solid solution nitrogen and a few other nitrogenous compounds in the steel, and the nitrogen in the component state exists in the pores of the steel to a very small extent. Determination of nitrogen in steel by chemical analysis, generally including the nitrogen in the nitride and the nitrogen in the atomic state in the solid solution. The formation of nitrides in steel is related to the types and contents of the elements present in the steel. It is also closely related to the smelting, processing and heat treatment processes of the steel. Metallic elements in steel and nitrogen chemical affinity different from the general trend, by affinity from strong to weak, row