本文研究了碳化物的形态对钢轨钢耐磨性的影响。研究表明,在钢轨运用的中硬度范围(HRc30～45)内,具有碳化物呈片状的珠光体组织的钢,耐磨性比具有碳化物呈粒状的回火索氏体组织的钢好,且随碳化物片的变薄,珠光体的细化,钢的耐磨性越来越好.细珠光体不仅性能好,而且易于得到,是钢轨,道岔,轮箍和起重机走轮等较理想的组织。 In this paper, the effect of carbide morphology on the wear resistance of rail steel was studied. Studies have shown that in the medium hardness range (HRc 30-45) for rail applications, pearlite-bearing steels with carbide flakes exhibit better wear resistance than steels with tempered sorbite in carbide form, With the thinning of the carbide sheet and the refinement of the pearlite, the wear resistance of the steel is getting better and better.The fine pearlite is not only good in performance but also easy to obtain, which is ideal for the rail, turnout, wheel hoop and crane walking round Of the organization.