Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders
Mechanical alloying combined with the gas-solid fluidization technology was used to pre-alloy and modify the WMoTaTi elemental mixed powders to improve the powder morphology, sphericity, and flowability, basically meeting the requirements for 3D printing. X-ray diffraction (XRD), scanning electron m...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Powder Metallurgy Technology
2021-10-01
|
| Series: | Fenmo yejin jishu |
| Subjects: | |
| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021030028 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846127376441802752 |
|---|---|
| author | LIU Chang CHEN Jia-nan DING Wang-wang YANG Jun-jun CHEN Gang QU Xuan-hui |
| author_facet | LIU Chang CHEN Jia-nan DING Wang-wang YANG Jun-jun CHEN Gang QU Xuan-hui |
| author_sort | LIU Chang |
| collection | DOAJ |
| description | Mechanical alloying combined with the gas-solid fluidization technology was used to pre-alloy and modify the WMoTaTi elemental mixed powders to improve the powder morphology, sphericity, and flowability, basically meeting the requirements for 3D printing. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectrometer (EDS) were used to characterize the surface morphology, particle size distribution, flowability, phase constituent, and chemical composition of the powders before and after fluidization. In the results, the mechanically alloyed WMoTaTi powders show the BCC single phase with good pre-alloying effect, but the sphericity of the pre-alloyed powders is only 26.7%. After the fluidization modification, the particle size distribution of the pre-alloyed powders becomes narrower, the sphericity ratio increases to 67.7%, the median diameter of WMoTaTi powders is 15.7 μm, the elemental distribution of powders is relatively uniform, the powder flowability increases to (35.3±0.2) s·(50 g)−1, and the spreading performance of powders is much better than that before fluidization, which can be used as the raw feedstock for 3D printing. |
| format | Article |
| id | doaj-art-562009ac4d0f4c55b1883d6f39ae5b9c |
| institution | Kabale University |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2021-10-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-562009ac4d0f4c55b1883d6f39ae5b9c2024-12-12T03:13:33ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842021-10-0139540340910.19591/j.cnki.cn11-1974/tf.2021030028Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powdersLIU ChangCHEN Jia-nan0DING Wang-wang1YANG Jun-jun2CHEN GangQU Xuan-huiInstitute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaInstitute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaInstitute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaMechanical alloying combined with the gas-solid fluidization technology was used to pre-alloy and modify the WMoTaTi elemental mixed powders to improve the powder morphology, sphericity, and flowability, basically meeting the requirements for 3D printing. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectrometer (EDS) were used to characterize the surface morphology, particle size distribution, flowability, phase constituent, and chemical composition of the powders before and after fluidization. In the results, the mechanically alloyed WMoTaTi powders show the BCC single phase with good pre-alloying effect, but the sphericity of the pre-alloyed powders is only 26.7%. After the fluidization modification, the particle size distribution of the pre-alloyed powders becomes narrower, the sphericity ratio increases to 67.7%, the median diameter of WMoTaTi powders is 15.7 μm, the elemental distribution of powders is relatively uniform, the powder flowability increases to (35.3±0.2) s·(50 g)−1, and the spreading performance of powders is much better than that before fluidization, which can be used as the raw feedstock for 3D printing.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021030028mechanical alloyinggas-solid fluidizationrefractory metalshigh entropy alloy3d printing |
| spellingShingle | LIU Chang CHEN Jia-nan DING Wang-wang YANG Jun-jun CHEN Gang QU Xuan-hui Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders Fenmo yejin jishu mechanical alloying gas-solid fluidization refractory metals high entropy alloy 3d printing |
| title | Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders |
| title_full | Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders |
| title_fullStr | Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders |
| title_full_unstemmed | Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders |
| title_short | Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders |
| title_sort | preparation and properties of quasi spherical wmotati refractory high entropy alloy powders |
| topic | mechanical alloying gas-solid fluidization refractory metals high entropy alloy 3d printing |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021030028 |
| work_keys_str_mv | AT liuchang preparationandpropertiesofquasisphericalwmotatirefractoryhighentropyalloypowders AT chenjianan preparationandpropertiesofquasisphericalwmotatirefractoryhighentropyalloypowders AT dingwangwang preparationandpropertiesofquasisphericalwmotatirefractoryhighentropyalloypowders AT yangjunjun preparationandpropertiesofquasisphericalwmotatirefractoryhighentropyalloypowders AT chengang preparationandpropertiesofquasisphericalwmotatirefractoryhighentropyalloypowders AT quxuanhui preparationandpropertiesofquasisphericalwmotatirefractoryhighentropyalloypowders |