以烧结机篦条用高铬铸铁为研究对象,结合烧结机台车工况条件研究了温度对该材料显微组织的影响。结果表明,烧结机篦条用高铬铸铁的显微组织主要由初生奥氏体、马氏体和碳化物组成。随着温度的升高,高铬铸铁组织中M7C3型碳化物的数量增加。 Taking the high chrome cast iron of sintering grate bar as the research object, the influence of temperature on the microstructure of the material was studied with the working conditions of the sintering machine trolley. The results show that the microstructure of high chrome cast iron for sintering machine is mainly composed of primary austenite, martensite and carbide. As the temperature increases, the amount of M7C3 carbides in high chromium cast iron increases.