低压等离子喷涂涂层膜基界面结合能的研究  

Interfacial Bonding Energy between Coating and Substrate for Low-Pressure Plasma Sprayed Materials

作　　者：朱其芳[1] 邵贝羚[1] 刘安生[1] 安生[1] 王福生[1] 李东飞[1] 

机构地区：[1]北京有色金属研究总院分析测试所,北京100088

出　　处：《稀有金属》2002年第5期373-375,共3页Chinese Journal of Rare Metals

基　　金：国家自然科学基金资助项目 (5 997 10 13 )

摘　　要：用努氏界面印痕法 ,对铁基Ni/Fe、镍基Cu/Ni低压等离子喷涂涂层的膜基界面进行界面结合能的研究 ,分析得到涂层界面的断裂表面能。分析得出铁基纯镍Ni/Fe涂层界面的断裂表面能比镍基铜Cu/Ni涂层的断裂表面能高。界面微观分析表明 ,镍基铜Cu/Ni涂层材料疏松 ,膜基界面存在较多裂纹 ,另外涂层和基体观察不到元素扩散层。Ni/Fe涂层界面结合致密 ,约有 2～ 3 μm的元素扩散层。The Interfacial bonding energy between coating and substrate for low-plasma sprayed materials was analyzed. The plastic deformation energy, superficies modification energy and interfacial fracture surface energy consumed by samples in interfacial indentation experiment were determined by Knoop interfacial indentation method. Knoop interfacial indentation energy testing method was newly established. The interfacial fracture surface energy was obtained through the research on interfacial bonding energy between coating and substrate for low plasma sprayed Fe based Ni/Fe and Ni based Cu/Ni materials. Microanalysis for interface shows that the coating of Ni based Cu/Ni material is porous and there exist many cracks in the interface between coating and substrate, moreover, no element diffusion layer is found in the coating and substrate. The bonding between the coating and substrate for Ni/Fe material is dense and there is an element diffusion layer with the thickness of about 2～3 μm.

关 键 词：低压等离子喷涂 涂层 断裂表面能 努氏界面印痕 

分 类 号：TG174.442[金属学及工艺—金属表面处理]