The preparation of spherical metal powders using the high-temperature remelting spheroidization technology
In this paper, a novel technology to prepare spherical metal powder was proposed. Several spherical metal powders were fabricated successfully by using the high-temperature remelting spheroidization (HRS) technology. Among these powders, thorough research on copper powder spheroidization was conduct...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-02-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520309187 |
| _version_ | 1818822171458273280 |
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| author | Qipeng Bao Yiru Yang Xiaochun Wen Lei Guo Zhancheng Guo |
| author_facet | Qipeng Bao Yiru Yang Xiaochun Wen Lei Guo Zhancheng Guo |
| author_sort | Qipeng Bao |
| collection | DOAJ |
| description | In this paper, a novel technology to prepare spherical metal powder was proposed. Several spherical metal powders were fabricated successfully by using the high-temperature remelting spheroidization (HRS) technology. Among these powders, thorough research on copper powder spheroidization was conducted. The influence of feed rate and temperature on the properties of as-prepared HRS copper powder was investigated. The particle morphology, particle size distribution, oxygen content, bulk density, fluidity and spheroidization rate of copper powder were characterized. The results showed some unique advantages of the HRS technology in the preparation of spherical metal powders. When the temperature was 1623 K, the particles of HRS copper powder were perfect spheres with smooth surfaces and fully dense with no pores inside. The HRS technology can effectively avoid the defects in conventional methods such as satellite particle and hollow particle. The spheroidization rate of HRS copper powder was nearly 100%. The fluidity of HRS copper powder was 11.4 s/50 g, significantly increased compared to the 56.1 s/50 g of the raw powder. Regarding the settling process and heat exchange behavior of metal particles, we developed the HRS process analytical model. HRS technology is a promising method to prepare high-quality metal powder. |
| first_indexed | 2024-12-18T23:19:51Z |
| format | Article |
| id | doaj.art-619e1759777f40818b55c6b859286f85 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-18T23:19:51Z |
| publishDate | 2021-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-619e1759777f40818b55c6b859286f852022-12-21T20:48:02ZengElsevierMaterials & Design0264-12752021-02-01199109382The preparation of spherical metal powders using the high-temperature remelting spheroidization technologyQipeng Bao0Yiru Yang1Xiaochun Wen2Lei Guo3Zhancheng Guo4State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road No.30, Haidian district, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road No.30, Haidian district, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road No.30, Haidian district, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road No.30, Haidian district, Beijing 100083, China; State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai University, Shanghai 200072, China; Corresponding author at: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road No.30, Haidian district, Beijing 100083, China.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road No.30, Haidian district, Beijing 100083, China; Corresponding author.In this paper, a novel technology to prepare spherical metal powder was proposed. Several spherical metal powders were fabricated successfully by using the high-temperature remelting spheroidization (HRS) technology. Among these powders, thorough research on copper powder spheroidization was conducted. The influence of feed rate and temperature on the properties of as-prepared HRS copper powder was investigated. The particle morphology, particle size distribution, oxygen content, bulk density, fluidity and spheroidization rate of copper powder were characterized. The results showed some unique advantages of the HRS technology in the preparation of spherical metal powders. When the temperature was 1623 K, the particles of HRS copper powder were perfect spheres with smooth surfaces and fully dense with no pores inside. The HRS technology can effectively avoid the defects in conventional methods such as satellite particle and hollow particle. The spheroidization rate of HRS copper powder was nearly 100%. The fluidity of HRS copper powder was 11.4 s/50 g, significantly increased compared to the 56.1 s/50 g of the raw powder. Regarding the settling process and heat exchange behavior of metal particles, we developed the HRS process analytical model. HRS technology is a promising method to prepare high-quality metal powder.http://www.sciencedirect.com/science/article/pii/S0264127520309187Spherical metal powderAdditive manufacturingSpheroidizationHigh-temperature remeltingPowder metallurgy |
| spellingShingle | Qipeng Bao Yiru Yang Xiaochun Wen Lei Guo Zhancheng Guo The preparation of spherical metal powders using the high-temperature remelting spheroidization technology Materials & Design Spherical metal powder Additive manufacturing Spheroidization High-temperature remelting Powder metallurgy |
| title | The preparation of spherical metal powders using the high-temperature remelting spheroidization technology |
| title_full | The preparation of spherical metal powders using the high-temperature remelting spheroidization technology |
| title_fullStr | The preparation of spherical metal powders using the high-temperature remelting spheroidization technology |
| title_full_unstemmed | The preparation of spherical metal powders using the high-temperature remelting spheroidization technology |
| title_short | The preparation of spherical metal powders using the high-temperature remelting spheroidization technology |
| title_sort | preparation of spherical metal powders using the high temperature remelting spheroidization technology |
| topic | Spherical metal powder Additive manufacturing Spheroidization High-temperature remelting Powder metallurgy |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520309187 |
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