中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Laser powder bed fusion of cemented carbides by developing a new type of Co coated WC composite powder

文献类型：期刊论文

作者Zhang, Lei4; Hu, Chaoquan4; Yang, Yafeng4,5,6; Misra, R. D. K.1; Kondoh, Katsuyoshi3; Lu, Yanan2
刊名ADDITIVE MANUFACTURING
出版日期2022-07-01
卷号55页码:10
关键词Laser powder bed fusion Powder processing Composites Ceramic Densification
ISSN号2214-8604
DOI10.1016/j.addma.2022.102820
英文摘要The study addresses the issue of the absence of high-quality WC-Co composite powder for laser powder bed fusion and assessing the printability of the new powder in terms of densification, microstructure and mechanical properties. The fluidized bed chemical vapor deposition (FBCVD) combined with electroless plating process was adopted to make core-shell structured WC-Co composite powder. The excellent uniformity of Co and good powder flowability were achieved by tuning the size and distribution of Co catalyst during FBCVD and regulating their relationship to the subsequent electroless plating behavior. The newly developed composite powder exhibited excellent printability. The densification mechanism was largely dependent on the laser energy density. The liquid formed by the melting of Co was responsible for the densification at low laser energy density, while the Co-W-C ternary liquid resulted from the dissolution of WC into Co melt dominated the densification at high laser energy density. Microstructurally, the morphology and size of WC grains were insignificantly changed because of its non-participation with liquid formation at low laser energy density. The rectangular/triangular WC grain morphology similar to the traditional sintered was formed at high laser energy density because of the precipitation of WC from the Co-W-C ternary liquid. Affected by the different liquid formation processes, increasing laser energy density increased the relative density, promoted the W2C phase formation and decreased WC grain size, which remarkably improved the hardness and tribological properties of the printed cemented carbide.
WOS关键词SIZE ; MICROSTRUCTURE ; FRACTURE ; GROWTH ; COBALT
资助项目Scientific Instrument Developing Project[YJKYYQ20190011] ; International Cooperation Project of the Chinese Academy of Sciences[122111KYSB20200034] ; National Guided Local Special Funding for Scientific and Technological Development ; Luohe Special Funds for Major Scientific and Technological Innovation
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000798067500003
出版者ELSEVIER
资助机构Scientific Instrument Developing Project ; International Cooperation Project of the Chinese Academy of Sciences ; National Guided Local Special Funding for Scientific and Technological Development ; Luohe Special Funds for Major Scientific and Technological Innovation
源URL[http://ir.ipe.ac.cn/handle/122111/53445]  
专题中国科学院过程工程研究所
通讯作者Yang, Yafeng
作者单位1.Univ Texas El Paso, Dept Met, Mat & Biomed Engn, 500 W Univ Ave, El Paso, TX 79968 USA
2.Henan Yingchuan New Mat Co Ltd, Luohe, Peoples R China
3.Osaka Univ, Joining & Welding Res Inst, Osaka, Japan
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Key Lab Sci & Technol Particle Mat, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Lei,Hu, Chaoquan,Yang, Yafeng,et al. Laser powder bed fusion of cemented carbides by developing a new type of Co coated WC composite powder[J]. ADDITIVE MANUFACTURING,2022,55:10.
APA Zhang, Lei,Hu, Chaoquan,Yang, Yafeng,Misra, R. D. K.,Kondoh, Katsuyoshi,&Lu, Yanan.(2022).Laser powder bed fusion of cemented carbides by developing a new type of Co coated WC composite powder.ADDITIVE MANUFACTURING,55,10.
MLA Zhang, Lei,et al."Laser powder bed fusion of cemented carbides by developing a new type of Co coated WC composite powder".ADDITIVE MANUFACTURING 55(2022):10.

入库方式： OAI收割

来源：过程工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。