EFFECT OF NITROGEN ON MATRIX STRUCTURE OF GRAY CAST IRON

作     者：ZHAI Qijie HU Hanqi University of Science and Technology Beijing,China associate professor,Faculty of Foundry,University of Science and Technology Beijing,Beijing 100083,China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1993年第6卷第6期

页      面：370-372页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：nitrogen gray cast iron matrix structure microhardness solid solution 

摘      要：Effect of nitrogen on matrix structure of 3 different varieties of gray cast iron,i.e., sub-eutectic Fe-C-Si,near-eutectic Fe-C-Si and Fe-C-Si-Mn,has been investigated. The eutectie colony structure of gray cast iron may be refined,the pearlite content increased and the micro-hardness of pearlite and ferrite raised with an addition of *** influ- ence of nitrogen on the transformation temperature of the equilibrium and non-equilibrium phases,as well as,the solution of nitrogen in ferrite and cementite seem to be the major rea- sons to strengthening the matrix structure of gray cast iron.