高铬铸钢做为轧钢导板材料,其使用寿命比铸铁导板高500倍以上,为了弄清这种材料的耐磨机理,应首先了解这种钢在铸态及其经轧制3000吨钢后的组织结构。一、铸钢的相鉴定高铬铸钢的化学成分为:(重量%)Ni 8,Cr 30,Mo 0.5,C 2.0,Si 1.2,V 0.3,Fe余。用X光结构分析及电子衍射等多种手段确定了合金中存在的相。铸态为奥氏体,铁素体及Cr_7C_3。经使 High-chromium cast steel as the rolling guide material, the service life of cast iron guide plate more than 500 times higher, in order to understand the wear-resistant mechanism of this material, we should first understand that this steel in the as-cast and after rolling 3,000 tons of steel The organizational structure. First, the phase identification of cast steel The chemical composition of high-chromium cast steel: (wt%) Ni 8, Cr 30, Mo 0.5, C 2.0, Si 1.2, V 0.3, Fe surplus. X-ray structure analysis and electron diffraction and other means to determine the existence of the alloy phase. As-cast austenite, ferrite and Cr_7C_3. After the adoption