Isothermal ozidation behavior of laser clad Ni-20Cr coating on molybdenum substrates at 600 C

摘要：

Ni-20Cr coating has been prepared on molybdenum surface by laser cladding. Through selecting appropriate processing pa rameters ,defect-free Ni-20Cr coating can be obtained on pure molybdenum substrates. The microstructure observation from SEM demon strates that the coating is free of cracks and pores,and metallurgically bonds with the substrate.XRD and EDS analysis results show that Mo diffused to the Ni-20Cr coating,and formed oxide with Ni and Mo. The oxidation behavior of the coating indicated that laser clad Ni-20Cr coating can effectively prevent oxidation of molybdenum at high temperature in air.

关键词： ozidation behavior microstructure molybdenum Ni-20Cr laser cladding

作者: HUANG Can ZHANG Yongzhong JIN Jutao SUN Jingchao

作者单位: National Engineering Research Center for Nonferrous Metal Composites,General Research Institute for Non-Ferrous Metals,Beijing 100088,China

会议类型: 国际会议

会议名称: The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)

会议地点: 浙江嘉兴

会议语种:英文

页码: 761-763

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）