载荷对纳米晶Co-Ni-Fe合金镀层摩擦磨损性能的影响  

Effect of Load on the Friction and Wear Characteristics of Nc Co-Ni-Fe Alloy Coating

作　　者：林兰芳[1] 戴品强[2,3] 林绿波[2] 

机构地区：[1]集美大学轮机工程学院,福建厦门361021 [2]福州大学材料科学与工程学院,福建福州350108 [3]福建工程学院材料科学与工程系,福建福州350108

出　　处：《集美大学学报（自然科学版）》2012年第4期293-296,共4页Journal of Jimei University：Natural Science

基　　金：福建省自然科学基金资助项目(E0810006)

摘　　要：用脉冲电沉积技术制备表面平整光亮的纳米晶Co-Ni-Fe合金镀层.采用XRD、TEM、SEM、EDS等方法研究了纳米晶Co-Ni-Fe合金镀层的微观组织结构、表面形貌和合金成分.研究了干滑动摩擦条件下纳米晶镀层的摩擦磨损性能、磨损后的组织结构和硬度的变化.结果表明:纳米晶Co-Ni-Fe合金镀层的晶体结构为单相面心立方结构.镀层的摩擦系数和磨损量随着摩擦载荷的提高而增大,即镀层的耐磨性随载荷的提高而下降.摩擦磨损使纳米晶Co-Ni-Fe合金镀层发生晶粒长大,摩擦载荷越大,磨损后镀层的硬度越低.Nanocrystalline Co-Ni-Fe alloy coatings with smooth and bright surface were synthesized by pulsed electrodeposition.The structure,surface morphology and composition of the nanocrystalline coating were studied by XRD,TEM,SEM and EDS.The wear resistance were investigated by using friction and wear tester under dry sliding friction.The microstructure and the microhardness of the coatings were detected.It was indicated by the results that the nanocrystalline Co-Ni-Fe alloy coating was FCC structure.The friction coefficient and wear loss of the nanocrystalline alloy coating were increased with inereasing load.The wear resistance of the coating was decreased with increasing load.The grain of nc coating was found to grow up after wear test and with the decreased microhardness.

关 键 词：摩擦载荷 纳米晶 Co-Ni-Fe 摩擦磨损特性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]