爆炸喷涂高铝青铜磷光自敏发光复合涂层及其摩擦学性能  

Detonation gun sprayed high-aluminum bronze luminescent self-sense composite coating and its tribology properties

作　　者：李文生[1] 赵文杰[1] 何玲[1] 胡春霞[1,2] 唐丽芳 LI Wen-sheng;ZHAO Wen-jie;HE Ling;HU Chun-xia;TANG Li-fang(State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China;School of Materials Engineering,Lanzhou Institute of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学有色金属先进加工与再利用国家重点实验室,兰州730050 [2]兰州工业学院材料工程学院,兰州730050

出　　处：《中国有色金属学报》2019年第7期1437-1445,共9页The Chinese Journal of Nonferrous Metals

基　　金：国家国际科技合作项目(2016YFE0111400);国家自然科学基金资助项目(51674130);甘肃省支撑计划资助项目(17YF1WA159,1604WKCA008)~~

摘　　要：采用爆炸喷涂在45^#钢基体上分别制备高铝青铜涂层和掺有SrAl2O4:Eu^2+,Dy^3+的高铝青铜磷光自敏发光复合涂层。利用SEM、EDS、荧光显微镜和荧光分光光度计分析涂层的微观形貌和物相组织、磷光粒子的沉积规律及复合涂层的发光强度;采用销盘式摩擦磨损试验机测试涂层的摩擦磨损性能,并检测复合涂层的宏观指示效应。结果表明:SrAl2O4:Eu^2+,Dy^3+的加入,降低了复合涂层的孔隙率,提高了复合涂层的硬度和结合强度。且高铝青铜磷光自敏发光复合涂层因高硬度SrAl2O4粒子的强化作用具有比高铝青铜涂层更优的耐磨性能。紫外光激发过后复合涂层中的SrAl2O4:Eu^2+,Dy^3+发出裸眼可见的黄绿光,可达到宏观指示复合涂层磨损状况的效应。The high-aluminum bronze coating and SrAl2O4:Eu^2+,Dy^3+ embedded high-aluminum bronze luminescent self-sense composite coating were sprayed on 45^# carbon steel substrate by detonation gun spraying,respectively.The microstructure,phase structure,microluminescence,deposition pattern of phosphor particles and luminescent intensity of coatings were analyzed by SEM,EDS,fluorescence microscope and fluorescence spectrophotometer.The friction and wear performance of coatings were investigated by pin-disk friction and wear tester,and then the macroscopic indication effect of composite coating was detected.The results show that the addition of SrAl2O4:Eu^2+,Dy^3+ particle can reduce the porosity,enhance the hardness and bonding strength of composite coating.Besides,the composite coating has better wear-resisting property than that of high-aluminum bronze coating,which is attributed to the high hardness of high-aluminum bronze luminescent self-sense composite coating and the reinforcement of SrAl2O4:Eu^2+,Dy^3+ particle.Through ultraviolet light excitation,the SrAl2O4:Eu^2+,Dy^3+ particles in the composite coating can emit green-yellow light that is visible to the naked eye,thus achieving a macroscopic indication effect to coatings wear condition.

关 键 词：爆炸喷涂 磷光材料 复合涂层 自敏发光 摩擦 磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]