【摘要】 研究结果表明，镧的加入可以改善合金层中碳化物分布状态，细化晶粒，净化铁液，减少夹杂物的数量，增加合金层的厚度，并且使合金层的耐磨性得到提高更多还原

【Abstract】 It has shown that the addition of La resulted in improvement of distribution of carbonide,refined grains,cleaned molten iron,reduction of inclusions,increasement of thickness and wear resistance of alloying layer.更多还原