【作者】 胡志华； 栾道成；

【Author】 HU Zhi-hua, LUAN Dao-cheng(Department of Material Science and Engineering, Sichuan University of Science and Technology, Chengdu 610039, Sichuan, China)

【机构】 四川工业学院材料科学与工程系；

【摘要】 研究了新型耐磨耐热材料——球墨铸钢。通过对钢液进行适当的球化处理,铸态组织中除珠光体外,还含有一定数目的球状石墨和碳化物,并且有效的降低了有害杂质的含量。分析了球墨铸钢的主要成分及其在钢中的作用,并研制了应用于球墨铸钢的球化剂。研究了球墨铸钢的性能,并探讨其球化机理。研究表明:球墨铸钢具有良好的应用前景。更多还原

【Abstract】 This paper deals with a new kind of wear-resisting and hot-resisting cast steel with spheroidal graphite. By means of an appropriate nodularization treatment, its as cast microstructure comprises not only pearlite, but also certain quantitative spheroidal graphite and carbide, and the content of harmful impurity is reduced effectively. This paper studies primary compositions of the cast steel with spheroidal graphite and its function in the steel, develops the spheroidizing-modifier for the cast steel, investigates some properties of the cast steel with spheroidal graphite, and analyses the spheroidizing mechanism. The results show that the cast steel with spheroidal graphite has a bright prospects for application.更多还原