Knowledge Management System Of Institute of process engineering,CAS
| Laser powder bed fusion of cemented carbides by developing a new type of Co coated WC composite powder | |
| Zhang, Lei1; Hu, Chaoquan1; Yang, Yafeng1,2,3; Misra, R. D. K.4; Kondoh, Katsuyoshi5; Lu, Yanan6 | |
| 2022-07-01 | |
| Source Publication | ADDITIVE MANUFACTURING
 |
| ISSN | 2214-8604 |
| Volume | 55Pages:10 |
| Abstract | 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. |
| Keyword | Laser powder bed fusion Powder processing Composites Ceramic Densification |
| DOI | 10.1016/j.addma.2022.102820 |
| Language | 英语 |
| WOS Keyword | SIZE ; MICROSTRUCTURE ; FRACTURE ; GROWTH ; COBALT |
| Funding Project | 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 Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Manufacturing ; Materials Science, Multidisciplinary |
| Funding Organization | 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 |
| WOS ID | WOS:000798067500003 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/53446 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Yang, Yafeng |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Sci & Technol Particle Mat, Beijing 100190, Peoples R China 4.Univ Texas El Paso, Dept Met, Mat & Biomed Engn, 500 W Univ Ave, El Paso, TX 79968 USA 5.Osaka Univ, Joining & Welding Res Inst, Osaka, Japan 6.Henan Yingchuan New Mat Co Ltd, Luohe, Peoples R China |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment