Development on Laser Cladding Ceramic Coating
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第1期
论文作者：Li Xikun Yu Honghao Zhao Haitao Qiu Guanming Qian Jiuhong Qiu Tai
Key words：surface and boundary of materials; laser cladding; ceramic coating; rare earths;
Abstract: The latest progress and research status of laser cladding ceramic coating was summarized. Technique characteristics and influence factors of laser cladding technique were introduced. Laser cladding technique includes the mixing method and laser irradiation. The mixing method can be classified as pre-coating method and synchronization method. The technique parameters include size of facula, scanning speed, cladding sector and times, adding quantity of powder, thickness of coating and quantity of joint coating. The results show that proper technique parameters can be controlled in order to acquire high quality laser cladding coating. Strengthened effect mechanism of rare earth additive is concluded, and the main effects of rare earth additive are micro-alloying, purifying boundary, fining crystal grains, improving crystal boundary, restraining columnar crystal growing. The development of laser cladding ceramic coating research was discussed.
Li Xikun1，Yu Honghao1，Zhao Haitao1，Qiu Guanming3，Qian Jiuhong4，Qiu Tai2
(1.Shenyang University of Science and Technology, Shenyang 110168, China;
2.Nanjing University of Technology, Nanjing 210009, China;
3.Changchun University of Science and Technology, Changchun 130022, China;
4.General Research Institute for Nonferrous Metals, Beijing 100088, China)
Abstract:The latest progress and research status of laser cladding ceramic coating was summarized. Technique characteristics and influence factors of laser cladding technique were introduced. Laser cladding technique includes the mixing method and laser irradiation. The mixing method can be classified as pre-coating method and synchronization method. The technique parameters include size of facula, scanning speed, cladding sector and times, adding quantity of powder, thickness of coating and quantity of joint coating. The results show that proper technique parameters can be controlled in order to acquire high quality laser cladding coating. Strengthened effect mechanism of rare earth additive is concluded, and the main effects of rare earth additive are micro-alloying, purifying boundary, fining crystal grains, improving crystal boundary, restraining columnar crystal growing. The development of laser cladding ceramic coating research was discussed.
Key words:surface and boundary of materials; laser cladding; ceramic coating; rare earths;
【全文内容正在添加中】
