Knowledge Management System Of Institute of process engineering,CAS
| Enhanced densification of copper during laser powder bed fusion through powder surface alloying | |
| Zheng, Run1,2; Cui, Jingyi1; Yang, Yafeng1,2,3; Li, Shaofu1,2; Misra, R. D. K.4; Kondoh, Katsuyoshi5; Zhu, Qingshan1,2; Lu, Yanan6; Li, Xiaofeng6 | |
| 2022-07-01 | |
| Source Publication | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
 |
| ISSN | 0924-0136 |
| Volume | 305Pages:13 |
| Abstract | In this study, a novel approach of powder surface alloying is proposed to address the issue of insufficient densification of printed copper (Cu) from high laser-absorbing Ni coated Cu powder through laser powder bed fusion. Three types of powder consisting of original Ni-coated powder (surface adhesion), partially Ni-diffused powder (partial surface alloying) and surface Ni-alloyed powder (complete surface alloying) were adopted to validate the effectiveness of the approach. All these powders significantly decreased the high laser reflectivity of Cu powder. The surface Ni-alloyed powder successfully melted the Cu powder to eliminate the lack-of-fusion pores in the printed Cu samples such that best dimensional accuracy and highest relative density of up to 99.6% was obtained. The interface condition between outer Ni coating and Cu powder played an important role in the densification process. The solid solution Ni in the surface Ni-alloyed powder maximized the contact area, reduced the thermal resistance and enhanced heat transfer efficiency, which eventually promoted the melting of Cu powder and eliminated the lack-of-fusion pores. Ni content is also revealed as an important factor in balancing electrical conductivity and mechanical properties. The optimal Ni content has been determined as 0.4 wt% for powder with surface Ni-alloyed. |
| Keyword | Laser powder bed fusion Surface coating Densification Ni distribution |
| DOI | 10.1016/j.jmatprotec.2022.117575 |
| Language | 英语 |
| WOS Keyword | PARAMETERS ; COMPONENTS ; ABSORPTION ; EVOLUTION ; DYNAMICS ; STEEL |
| Funding Project | International Cooperation Project of the Chinese Academy of Sciences,China[122111KYSB20200034] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences,China[YJKYYQ20190011] ; Shandong Provincial Science and Technology Innovation Project[2019JZZY010363] ; National Guided Local Special Funding for Scientific and Technological Development |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary |
| Funding Organization | International Cooperation Project of the Chinese Academy of Sciences,China ; Scientific Instrument Developing Project of the Chinese Academy of Sciences,China ; Shandong Provincial Science and Technology Innovation Project ; National Guided Local Special Funding for Scientific and Technological Development |
| WOS ID | WOS:000796517700001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/53362 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Cui, Jingyi; Yang, Yafeng |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, 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, 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 | Zheng, Run,Cui, Jingyi,Yang, Yafeng,et al. Enhanced densification of copper during laser powder bed fusion through powder surface alloying[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2022,305:13. |
| APA | Zheng, Run.,Cui, Jingyi.,Yang, Yafeng.,Li, Shaofu.,Misra, R. D. K..,...&Li, Xiaofeng.(2022).Enhanced densification of copper during laser powder bed fusion through powder surface alloying.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,305,13. |
| MLA | Zheng, Run,et al."Enhanced densification of copper during laser powder bed fusion through powder surface alloying".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 305(2022):13. |
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