Effect of CeO2 on Microstructure and Properties of WC/Ni60 Coating by Laser Cladding

摘要：

The composite coatings of self-flux alloy matrix reinforced by WC-12％Co were produced on the surface of 45 steel using laser cladding technology. The effects of CeO2 to macro-morphology, microstructure, hardness, wear resistance and corrosion resistance of cladding layer were investigated. The results show that rare earths oxide (CeO2) added laser cladding coating has distribution, dimension phases and less deficiency. CeO2 could promote liquating process of WC, increasing the quantity and distribute uniformity of intermetallic compounds in laser cladding layer. Because of dispersion precipitation and fine-crystal strengthen effect, laser cladding layer with CeO2 has higher microhardness, wearing resistance and better corrosion resistance properties.

关键词： laser cladding microstructure WC rare earths

作者: H Ye X B Zhang Z F Xue Y H Fan K Chen

作者单位: School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400050, C Chongqing Institute of Optics and Mechanics, Chongqing 401121, China

会议类型: 国际会议

会议名称: 第二届多功能材料与结构国际会议

会议地点: 青岛

会议语种:英文

页码: 795-798

在线出版日期: 2009-10-09（万方平台首次上网日期，不代表论文的发表时间）