复合镀液中Al_(2)O_(3)掺杂量对Ni-P-Al_(2)O_(3)-PTFE复合镀层性能的影响  

Effect of Al_(2)O_(3) Doping Content in Composite Plating Solution on Properties of Ni-P-Al_(2)O_(3)-PTFE Composite Plating

作　　者：郁水峰 杨玉明 YU Shuifeng;YANG Yuming(Bill-Anda(Shanghai)Lubricating Material Co.,Ltd.,Shanghai 200949,China;School of Materials Science and Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]比尔安达(上海)润滑材料有限公司,上海200949 [2]上海理工大学材料科学与工程学院,上海200093

出　　处：《机械工程材料》2021年第6期8-13,25,共7页Materials For Mechanical Engineering

摘　　要：在复合镀液中添加不同含量的Al_(2)O_(3),采用化学镀方法制备Ni-P-Al_(2)O_(3)-PTFE(聚四氟乙烯)复合镀层,研究了复合镀液中Al_(2)O_(3)质量浓度(0~3.0 g·L^(-1))对复合镀层显微组织、硬度、耐磨性能的影响。结果表明:随着复合镀液中Al_(2)O_(3)掺杂量的增加,化学镀Ni-P-Al_(2)O_(3)-PTFE复合镀层中Al_(2)O_(3)含量先升高后降低,Ni-P基质的结晶性先增强后减弱,硬度先升高后降低,磨损质量损失先减小后增加;当Al_(2)O_(3)质量浓度为2.0 g·L^(-1)时,Ni-P基质结晶性优良,Ni-P-Al_(2)O_(3)-PTFE层与Ni-P过渡层结合良好,复合镀层中Al_(2)O_(3)的含量最高,PTFE、Al_(2)O_(3)粒子均匀弥散地镶嵌在Ni-P基质中,复合镀层的硬度最高,为7.6 GPa,磨损质量损失最低,复合镀层具有优异的耐磨性能。A Ni-P-Al_(2)O_(3)-PTFE(polytetrafluoroethylene)composite plating was prepared by electroless plating method in the composite plating solution containing different content of Al_(2)O_(3).The effects of mass concentration(0-3.0 g·L^(-1))of Al_(2)O_(3)in the composite plating solution on the microstructure,hardness and wear resistance of the composite plating were studied.The results show that with increasing doping content of Al_(2)O_(3)in the composite plating solution,the content of Al_(2)O_(3)in the electroless plated Ni-P-Al_(2)O_(3)-PTFE composite plating increased first and then decreased,the crystallinity of the Ni-P matrix increased first and then decreased,the hardness increased first and then decreased,and the wear mass loss decreased first and then increased.When the mass concentration of Al_(2)O_(3)was 2.0 g·L^(-1),the crystallinity of the Ni-P matrix was good,the Ni-P-Al_(2)O_(3)-PTFE plating and Ni-P transition layer were bonded well,the content of Al_(2)O_(3)in the composite plating was the highest,the PTFE and Al_(2)O_(3)particles were uniformly dispersed in the Ni-P matrix,and the composite plating had the highest hardness of 7.6 GPa,and the smallest wear mass loss,indicating the composite plating had excellent wear resistance.

关 键 词：氧化铝掺杂 化学镀 Ni-P-Al_(2)O_(3)-PTFE复合镀层 耐磨性能 

分 类 号：TB333[一般工业技术—材料科学与工程]