本文研究微合金化低铬稀土白口铸铁的组织、性能和耐磨性表明,由于微量钼、钛和稀土合金的加入,使低铬白口铸铁硬度得到明显的提高,冲击韧性值也有所提高。生产表明,微合金化低铬稀土白口铸铁的生产成本低,工艺简单,耐磨性好。用其生产锤头,使用寿命是中锰白口铸铁的3～4倍。 In this paper, the microstructure, properties and wear resistance of microalloyed low-Cr rare-earth white cast iron show that the hardness of low-chromium white cast iron is obviously improved and the impact toughness value also increased due to the addition of trace amounts of molybdenum, titanium and rare earth alloy . Production shows that the production of micro-alloyed low-chromium rare earth white cast iron low cost, simple process, good wear resistance. With its production of hammer, the service life is 3 to 4 times the white manganese cast iron.