(1. 蘭州理工大學(xué) 有色金屬先進(jìn)加工與再利用國家重點實驗室，蘭州 730050；
2. 蘭州工業(yè)學(xué)院 材料工程學(xué)院，蘭州 730050)
摘 要: 采用爆炸噴涂在45#鋼基體上分別制備高鋁青銅涂層和摻有SrAl2O4:Eu2+,Dy3+的高鋁青銅磷光自敏發(fā)光復(fù)合涂層。利用SEM、EDS、熒光顯微鏡和熒光分光光度計分析涂層的微觀形貌和物相組織、磷光粒子的沉積規(guī)律及復(fù)合涂層的發(fā)光強(qiáng)度；采用銷-盤式摩擦磨損試驗機(jī)測試涂層的摩擦磨損性能，并檢測復(fù)合涂層的宏觀指示效應(yīng)。結(jié)果表明：SrAl2O4:Eu2+,Dy3+的加入，降低了復(fù)合涂層的孔隙率，提高了復(fù)合涂層的硬度和結(jié)合強(qiáng)度。且高鋁青銅磷光自敏發(fā)光復(fù)合涂層因高硬度SrAl2O4粒子的強(qiáng)化作用具有比高鋁青銅涂層更優(yōu)的耐磨性能。紫外光激發(fā)過后復(fù)合涂層中的SrAl2O4:Eu2+,Dy3+發(fā)出裸眼可見的黃綠光，可達(dá)到宏觀指示復(fù)合涂層磨損狀況的效應(yīng)。
關(guān)鍵字: 爆炸噴涂；磷光材料；復(fù)合涂層；自敏發(fā)光；摩擦；磨損
（1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;
2. School of Materials Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China）
Abstract:The high-aluminum bronze coating and SrAl2O4:Eu2+,Dy3+ 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:Eu2+,Dy3+ 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:Eu2+,Dy3+ particle. Through ultraviolet light excitation, the SrAl2O4:Eu2+,Dy3+ 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.
Key words: detonation gun spraying; phosphorescent material; composite coating; luminescent self-sense; friction; wear
