通过研究粒化处理工艺对新型高碳高铬低镍钢的铸态组织和力学性能的影响,表明了经粒化处理后,奥氏体基体晶粒明显细化,且晶粒内弥散析出大量细小的粒状或短杆二次碳化物;原连续网状碳化物明显溶断并粒化,变为断续的网状物,且碳化物数量增大。粒化处理后钢的硬度显著提高、韧性略有改善。 By studying the effect of granulation treatment on the as-cast microstructure and mechanical properties of the new high carbon, high chromium and low nickel steel, it shows that the grain size of the austenite matrix is ​​significantly refined and the amount of dispersed Fine granular or short rod secondary carbides; the original continuous mesh carbides dissolved and granulated significantly, become intermittent mesh, and the increase in the number of carbides. The hardness of the steel after the granulation treatment was significantly improved, the toughness slightly improved.