RE containing inoculant improved the morphorlogy of carbide in the structure of grinding balls and hence comprehensively increased both the toughness and wear resistance of the balls.

• 稀土孕育剂改善了低铬铸铁磨球中碳化物的形态分布，从而提高了磨球的韧性与抗磨性相匹配的综合指标。