It was found that there was a large amount of spheroidal carbide in the microstructure after normalizing or forging,which is quite different from the traditional technique for carbide spheroidizing of high.
采用作者研究发明的新型球化剂,对超高碳钢钢水孕育处理,使铸态获得球状石墨的球墨铸钢;并分析了球墨铸钢铸态、退火、正火、锻造后的组织特征,同时观察到球墨铸钢正火、锻造处理可获得大量的球状碳化物现象,与传统的高碳钢碳化物球状工艺有显著的差异。