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 investiga...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.展开更多
文摘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.
