High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting
High entropy alloys (HEAs) have a good application potential in the preparation of high temperature service parts with complex shapes in additive manufacturing. Powder bed fusion (PBF) is a prominent type of additive manufacturing process that utilizes the thermal energy to bind powder materials tog...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424005180 |
| _version_ | 1797249168426663936 |
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| author | Zhen Gu Jiayu He Zhicheng Sun Xiaojuan Li Hongmin Guo Shanlin Zhou Peng Zhang Hongjing Wu Shengqi Xi |
| author_facet | Zhen Gu Jiayu He Zhicheng Sun Xiaojuan Li Hongmin Guo Shanlin Zhou Peng Zhang Hongjing Wu Shengqi Xi |
| author_sort | Zhen Gu |
| collection | DOAJ |
| description | High entropy alloys (HEAs) have a good application potential in the preparation of high temperature service parts with complex shapes in additive manufacturing. Powder bed fusion (PBF) is a prominent type of additive manufacturing process that utilizes the thermal energy to bind powder materials together to build up plastic or metallic parts. However, the traditional gas atomization method (GA) often produce alloy powder (containing refractory element) with uneven composition, affecting the quality and performance of specimens. That is why innovative or opposite classical production powder methods are in demand for the PBF. It is worth noting that mechanical alloying technology overcomes the limitation of high temperature alloying of HEA containing refractory elements and realizes solid alloying of insoluble elements. In this paper, high entropy alloy Ni6W2Cr4Fe8Ti1 containing refractory elements is designed by means of composition control. Its spherical powders with uniform composition were successfully prepared by the new mechanical alloying - high temperature remelting spheroidization dual process (DP) method. The treated powder composition is evenly distributed with particle sizes ranging from 15 to 28 μm. And the spheroidization rate has exceeded 98.23% at 1943 K. The sample value of YS and UTS on Ni6W2Cr4Fe8Ti1 (DP-SLM) has increased by 35.7%, 45.5% and 27.3%, respectively in additive manufacturing, compared to GA-SLM. The ability to produce refractory HEA through DP method will make it possible to manufacture complex geometry shapes at a reasonable cost. It offers theoretical guidance to manufacture fine grain materials with high strength and ductility of new HEA components. |
| first_indexed | 2024-04-24T20:26:12Z |
| format | Article |
| id | doaj.art-b92770a09bdc4fe499ef645717f6503d |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:26:12Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-b92770a09bdc4fe499ef645717f6503d2024-03-22T05:39:51ZengElsevierJournal of Materials Research and Technology2238-78542024-05-0130589602High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser meltingZhen Gu0Jiayu He1Zhicheng Sun2Xiaojuan Li3Hongmin Guo4Shanlin Zhou5Peng Zhang6Hongjing Wu7Shengqi Xi8State Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaThe Third Gas Production Plant of Changqing Oilfield Branch of Petrochina Co., LTD, Xi 'an, 710018, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; Corresponding author.High entropy alloys (HEAs) have a good application potential in the preparation of high temperature service parts with complex shapes in additive manufacturing. Powder bed fusion (PBF) is a prominent type of additive manufacturing process that utilizes the thermal energy to bind powder materials together to build up plastic or metallic parts. However, the traditional gas atomization method (GA) often produce alloy powder (containing refractory element) with uneven composition, affecting the quality and performance of specimens. That is why innovative or opposite classical production powder methods are in demand for the PBF. It is worth noting that mechanical alloying technology overcomes the limitation of high temperature alloying of HEA containing refractory elements and realizes solid alloying of insoluble elements. In this paper, high entropy alloy Ni6W2Cr4Fe8Ti1 containing refractory elements is designed by means of composition control. Its spherical powders with uniform composition were successfully prepared by the new mechanical alloying - high temperature remelting spheroidization dual process (DP) method. The treated powder composition is evenly distributed with particle sizes ranging from 15 to 28 μm. And the spheroidization rate has exceeded 98.23% at 1943 K. The sample value of YS and UTS on Ni6W2Cr4Fe8Ti1 (DP-SLM) has increased by 35.7%, 45.5% and 27.3%, respectively in additive manufacturing, compared to GA-SLM. The ability to produce refractory HEA through DP method will make it possible to manufacture complex geometry shapes at a reasonable cost. It offers theoretical guidance to manufacture fine grain materials with high strength and ductility of new HEA components.http://www.sciencedirect.com/science/article/pii/S2238785424005180Powder bed fusionNi6W2Cr4Fe8Ti1Solute homogenizationMechanical alloyingMechanical properties |
| spellingShingle | Zhen Gu Jiayu He Zhicheng Sun Xiaojuan Li Hongmin Guo Shanlin Zhou Peng Zhang Hongjing Wu Shengqi Xi High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting Journal of Materials Research and Technology Powder bed fusion Ni6W2Cr4Fe8Ti1 Solute homogenization Mechanical alloying Mechanical properties |
| title | High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting |
| title_full | High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting |
| title_fullStr | High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting |
| title_full_unstemmed | High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting |
| title_short | High strength and ductility on Ni6W2Cr4Fe8Ti1 high entropy alloys by selective laser melting |
| title_sort | high strength and ductility on ni6w2cr4fe8ti1 high entropy alloys by selective laser melting |
| topic | Powder bed fusion Ni6W2Cr4Fe8Ti1 Solute homogenization Mechanical alloying Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424005180 |
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