冯晗,李佳欣,陈鹏起,张东亚,程继贵

• 1:合肥工业大学材料科学与工程学院
• 2:安徽省粉末冶金技术工程研究中心
• 3:高性能铜合金材料及成形加工教育部工程研究中心
• 4:徐工集团江苏徐州工程机械研究院

摘要(Abstract)：

以还原铁粉、电解铜粉、鳞片状石墨粉制备成形的混合料为原料，经压制烧结得到了Fe-xCu-0.7C(x=10、15、20和25 mass%)粉末冶金轴承材料。采用扫描电镜、洛氏硬度计、万能材料试验机及摩擦磨损试验等研究了烧结体试样的显微组织、硬度、压溃强度及摩擦磨损性能，分析了Cu含量对烧结体试样的孔隙率、显微组织和力学性能的影响。结果表明：烧结体试样的显微组织主要由珠光体、铁素体、Cu相以及孔隙组成，随着Cu含量从10%增加到25%,烧结体的开孔隙率和硬度降低，压溃强度先升高后降低，摩擦系数以及体积磨损量先降低后升高。当Cu含量为15 mass%时，Fe-15Cu-0.7C烧结体试样的综合性能较好，其密度、硬度、压溃强度、摩擦系数以及体积磨损量分别为6.14 g/cm~3、51.81 HRB、419.96 MPa、0.23和0.2145 mm~3。

关键词(KeyWords)： 铁基减摩材料;粉末冶金;铜含量;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 安徽省重点研究与开发计划项目(202104a05020046)

作者(Author): 冯晗,李佳欣,陈鹏起,张东亚,程继贵

DOI: 10.13289/j.issn.1009-6264.2023-0050

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