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中文摘要: 采用超音速等离子喷涂工艺制备了氧化铝涂层.利用扫描电镜和纳米测试仪研究了电弧功率及喷涂距离对氧化铝涂层的微观组织与性能的影响.试验结果表明:功率为60 kW,喷涂距离为100 mm时涂层的孔隙率最低,微观硬度和弹性模量最高;氧化铝涂层的微观硬度和弹性模量主要受涂层中的孔隙和微裂纹的影响,两者随电弧功率与喷涂距离的增大均呈现先增后减的相同趋势.
Abstract:Al_2O_3 coatings were prepared by the supersonic plasma spraying system.The effect of arc power and spraying distance on Al_2O_3 coatings' microstructure and properties was characterized by SEM and Nano-indentation tester.The results indicate that Al_2O_3 coatings have the lowest porosity rate and the highest micro-hardness and elastic modulus with 60 kW arc power and 100 mm spraying distance.The micro-hardness and elastic modulus which are mainly affected by coatings' porosity and micro-cracks,increase fir...
keywords: Supersonic plasma spray Microstructure Property
文章编号： 中图分类号：TG174.4 文献标志码：
基金项目:国家自然科学基金，国防重点实验室基金
WANG Hai-jun GUO Yong-ming LIU Ming LU Huan
WANG Hai-jun,GUO Yong-ming,LIU Ming,LU Huan (National Key Laboratory for Equipment Remanufacturing,Institute of Armored Force,Beijing 100072,China)
引用文本：
王海军,郭永明,刘明,陆欢.超音速等离子喷涂氧化铝涂层组织性能研究[J].有色金属（冶炼部分）,2008(Z1):.
.Study on Microstructure and Properties of Supersonic Plasma Sprayed Al_2O_3 Coatings[J].Nonferrous Metals (Extractive Metallurgy),2008(Z1):.
王海军,郭永明,刘明,陆欢.超音速等离子喷涂氧化铝涂层组织性能研究[J].有色金属（冶炼部分）,2008(Z1):.
.Study on Microstructure and Properties of Supersonic Plasma Sprayed Al_2O_3 Coatings[J].Nonferrous Metals (Extractive Metallurgy),2008(Z1):.
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