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Influence of rotating magnetic field on the microstructure and phase content of Ni-Al alloy |
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| Authors: | Fudong Bai Minghong ShaTingju Li Lianhai Lu |
| Affiliation: | a School of Materials Science and Engineering and Laboratory of Special Processing of Raw Materials, Dalian University of Technology, Dalian 116085, PR China b Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams of Ministry of Education, Dalian University of Technology, Dalian 116085, PR China c School of Materials and Metallurgy, University of Science and Technology LiaoNing, Anshan 114051, PR China d State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116085, PR China |
| Abstract: | Rotating magnetic field is introduced in the production process of Ni-Al precursor alloy of skeletal Ni catalyst. The results showed that the big dendrites of Al3Ni2 disappeared, the size of Al3Ni2 decreased from 64.5 μm to 37.2 and 35.5 μm, phase content of Al3Ni2 decreased while Al3Ni increased after applying field current of 80 A and 140 A, respectively. The change of phase content is probably caused by the increase of surface area between the Al3Ni2 phase and fluid which is favorable to the peritectic reaction. |
| Keywords: | Intermetallics Microstructure Rotating magnetic field Electromagnetic stirring |
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