Laser Coating Quality of Bioceramic on Ti-Alloy Produced by Powder Preplacing Technique

作     者：杜海燕 韩晶 刘家臣 邱世鹏 

作者机构：School of Materials Science and EngineeringKey Laboratory of Advanced Ceramics and Machining TechnologyTianjin University 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2003年第21卷第S1期

页      面：165-167页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：laser cladding Ti-alloy hydroxyapatite preplacing rare earths 

摘      要：A powder preplacing technique was adopted in the process of laser cladding of hydroxyapatite on Ti-alloy substrate. A flocculated and a dispersed powder states in the form of slurry were designed in order to investigate the effects of powder states on coating quality. It is found that the quality of laser coating was closely related to the state of preplaced powder. A flocculated state resulted in a loose green coating and a porous final laser coating,while a dispersed state resulted in dense-packed green coating and a high quality of laser coating. This suggests that a selection and consideration of the powder state is required for quality control of laser cladding with powder preplacing approach.