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《Chinese Journal of Lasers》 2010-10
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Studies of the Effects and Mechanism of Electromagnetic Stirring on the Microstructures and Hardness of Laser Cladding WC-Co Based Alloy Coating

Yu Benhai Hu Xuehui Wu Yu′e Yang Dongsheng(College of Physics & Electronics Engineering,Xinyang Normal University,Xinyang,Henan 464000,China)  
Effects of electromagnetic stirring on the microstructures of the laser cladding WC-CO based layers are studied.Both experimental and theoretical analysis indicate that the microstructures of the laser cladding layers under electromagnetic stirring are much finer and more uniform than those without electromagnetic stirring.High qualitative layers which are free of porosity and cracks are obtained from the laser cladding with electromagnetic stirring.The influences of different electromagnetic stirring strengths on the hardness of the laser cladding layers are also investigated.The results show that the hardness increases correspondly with the increase of the electromagnetic stirring strength.
【Fund】: 国家自然科学基金(60777012);; 河南省2008科技计划项目(082300410050)资助课题
【CateGory Index】: TG174.44
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