低合金白口铁碳化物形貌及其分布状态,强烈的影响其强韧性和抗磨料磨损性能。本文主要论述了低络稀土白口铁,在铜和铝的共同作用下,其共晶碳化物形貌的变化规律及其对主要性能的影响。实验证明,在适当的铜、铝含量时,共晶碳化物有明显的呈孤立块状分布趋势,并在一定程度上被细化。从而有效地改善了白口铁的强韧性和耐磨性。 Low alloy white iron carbide morphology and distribution, a strong impact on its toughness and abrasion resistance. In this paper, the variation of eutectic carbide morphology and its effect on the main properties of low-staged rare earth white iron under the co-action of copper and aluminum are discussed. Experiments show that, in the appropriate copper, aluminum content, the eutectic carbide obvious lump-like distribution trend, and to some extent, was refined. Thus effectively improving the toughness and wear resistance of white iron.