AlN-CrFe混合组元对铜基粉末冶金摩擦材料性能影响  

Effects of AlN-CrFe Mixed Components on Properties of Cu-based Powder Metallurgy Friction Materials

作　　者：吴深 司屈钒 刘洪坤 蒋爱云[2] 刘建秀 樊江磊 王艳 WU Shen;SI Qufan;LIU Hongkun;JIANG Aiyun;LIU Jianxiu;FAN Jianglei;WANG Yan(School of Electro-mechanical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002;Engineering College,Huanghe Science and Technology University,Zhengzhou 450006)

机构地区：[1]郑州轻工业大学机电工程学院,郑州450002 [2]黄河科技学院工学院,郑州450006

出　　处：《特种铸造及有色合金》2024年第9期1241-1245,共5页Special Casting & Nonferrous Alloys

基　　金：河南省科技攻关计划资助项目(232102230055,222102230056);河南省研究生教育改革与质量提升工程资助项目(YJS2022JD50);河南省高等教育教学改革研究与实践资助项目(2021SJGLX074Y)。

摘　　要：以AlN-CrFe为混合摩擦组元,采用粉末冶金方法制备铜基摩擦材料,研究了AlN-CrFe含量对铜基摩擦材料性能的影响。结果表明,随AlN含量提高,摩擦材料的硬度提高,密度呈下降趋势,当AlN含量超过9%后摩擦材料的硬度和密度的变化不明显。摩擦因数和相对磨损量均随AlN含量提高而逐渐下降,当AlN、CrFe含量比为3∶9时,摩擦因数较大且稳定。摩擦磨损试验中摩擦材料表面主要存在一些剥落坑和裂纹,随AlN含量升高剥落坑和裂纹逐渐减少,磨损机理从剥层磨损向氧化磨损转变,并最终转化为磨粒磨损。Taking AlN-CrFe as mixed friction component,Cu-based friction materials were prepared by powder metallurgy method,and effects of AlN-CrFe content on properties of Cu-based friction materials were investigated.The results indicate that with the gradual increase in AlN content,the hardness is gradually increased,while the density shows a gradual decline trend.When AlN content exceeds 9%,the variation of hardness and density of material is indistinctive.Both the friction coefficient and relative wear amount are gradually reduced with the increase of AlN content.A high and stable friction coefficient can be obtained with the AlN/CrFe proportion of 3∶9.During the friction and wear test,there exist spalling pits and cracks on the surface of material,which become smaller with the AlN content increasing.The wear mechanism is gradually transformed from peeling wear to oxidizing wear,and finally to abrasive wear.

关 键 词：铜基摩擦材料 粉末冶金 性能 摩擦组元 

分 类 号：TG146.11[一般工业技术—材料科学与工程]