目的 研究添加V和Nb对电弧喷涂马氏体不锈钢合金层组织和性能的影响规律.方法 研制不同V和Nb含量的新型马氏体不锈钢电弧喷涂药芯丝材,利用高速电弧喷涂设备在Q235低碳钢板表面制备耐磨合金涂层,并对合金涂层的组织结构和性能进行研究.结果 所制备的合金涂层成形良好,孔隙率较低,结构致密;涂层显微硬度值达523HV0.1,与基材间的平均结合强度值达35.48 MPa,V和Nb的添加提高了合金涂层的耐磨损性能.结论 添加适量的V和Nb合金元素,可以促进碳化物硬质相颗粒的形成,提高马氏体不锈钢合金涂层的综合性能.
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