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Elimination of n phase in WC-Co cemented carbides during laser powder bed fusion by powder coating compensation strategy

文献类型：期刊论文

作者Wang, Yemin1,2; Zhang, Lei2,7; Yang, Yafeng2,3,4,7; Kondoh, Katsuyoshi5; Sun, Linbing1; Lu, Yanan6
刊名JOURNAL OF THE AMERICAN CERAMIC SOCIETY
出版日期2022-11-24
页码13
ISSN号0002-7820
关键词ceramic-metal systems chemical vapor deposition coatings composites printing
DOI10.1111/jace.18882
英文摘要The formation of n phase induced by the C-loss for the laser powder bed fusion (LPBF) of WC-Co cemented carbides largely deteriorates the fracture toughness. The current approach of mixing C additive into powder cannot mitigate the n phase formation. This study proposed a new carbon compensation strategy of coating carbon resource on powder surface by fluidized bed chemical vapor deposition to address this issue. C nanoparticles and carbon nanotubes (CNTs) were selectively deposited on WC-Co powder to make uniform C- and CNTs-coated powders by tuning the deposition temperature. Compared with CNTs-coated powder and C-WC-Co powder mixtures, the C-coated powder was more effective in impeding the n phase formation because it had higher reactivity and stronger dissolution ability to compensate the C-loss in the Co-W-C liquid. However, the single-carbon compensation was not enough to eliminate the n phase due to the extreme nonequilibrium characteristics of LPBF, which required secondary heat treatment. The conventional heat treatment procedure of 1000 degrees C for 3 h eliminated the n phase for the C-coated powder but failed for the C-WC-12Co powder mixtures. Because of the absence of n phase, the heat-treated sample made from C-coated powder exhibited the highest transverse rupture strength.
WOS关键词CARBON NANOTUBES ; ALLOYS ; WC/CO ; WEAR
资助项目National Natural Science Foundation of China[52204377] ; National Natural Science Foundation of China[51874271] ; International Cooperation Project[122111KYSB20200034] ; Project of Key Laboratory of Science and Technology on Particle Materials[CXJJ-22S043] ; National Guided Local Special Funding for Scientific and Technological Development ; Luohe Special Funds for Major Scientific and Technological Innovation
WOS研究方向Materials Science
语种英语
出版者WILEY
WOS记录号WOS:000889910700001
资助机构National Natural Science Foundation of China ; International Cooperation Project ; Project of Key Laboratory of Science and Technology on Particle Materials ; 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/122111/55923]  
专题中国科学院过程工程研究所
通讯作者Zhang, Lei; Yang, Yafeng
作者单位1.Nanjing Tech Univ, Coll Chem Engn, Nanjing, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing, Peoples R China
4.Chinese Acad Sci, Key Lab Sci & Technol Particle Mat, Beijing, Peoples R China
5.Osaka Univ, Joining & Welding Res Inst, Suita, Osaka, Japan
6.Henan Yingchuan New Mat Co Ltd, Luohe, Peoples R China
7.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yemin,Zhang, Lei,Yang, Yafeng,et al. Elimination of n phase in WC-Co cemented carbides during laser powder bed fusion by powder coating compensation strategy[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2022:13.
APA Wang, Yemin,Zhang, Lei,Yang, Yafeng,Kondoh, Katsuyoshi,Sun, Linbing,&Lu, Yanan.(2022).Elimination of n phase in WC-Co cemented carbides during laser powder bed fusion by powder coating compensation strategy.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,13.
MLA Wang, Yemin,et al."Elimination of n phase in WC-Co cemented carbides during laser powder bed fusion by powder coating compensation strategy".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2022):13.

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来源：过程工程研究所

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