| Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing | |
| Alternative Title | Soft magnetic properties of amorphous Fe_(52)Co_(34)Hf_7B_6Cu_1 alloy treated by pulsed magnetic field and annealing |
| Gu Yue1; Chao YueSheng1; Zhang YanHui1 | |
| 2012 | |
| Source Publication | CHINESE PHYSICS B
 |
| ISSN | 1674-1056 |
| Volume | 21Issue:12 |
| Abstract | The crystallization, microstructure, and soft magnetic properties of Fe52Co34Hf7B6Cu1 alloy are studied. Amorphous Fe52Co34Hf7B6Cu1 alloys are first treated by a pulsed magnetic field with a medium frequency, and then annealed at 100 degrees C-400 degrees C for 30 min in a vacuum. The rise in temperature during the treatment by a pulsed magnetic field is measured by a non-contact infrared thermometer. The soft magnetic properties of specimens are measured by a vibrating sample magnetometer (VSM). The microstructure changes of specimens are observed by a Mossbauer spectroscopy and transmission electron microscope (TEM). The results show the medium-frequency pulsating magnetic field will promote nanocrystallization of the amorphous alloy with a lower temperature rise. The nanocrystalline phase is alpha-Fe(Co) with bcc crystal structure, and the grain size is about 10 nm. After vacuum annealing at 100 degrees C for 30 min, scattering nanocrystalline phases become more uniform, the coercive force and the saturation magnetization of the specimens are 41.98 A/m and 185.15 emu/g. |
| Other Abstract | The crystallization, microstructure, and soft magnetic properties of Fe_(52)Co_(34)Hf_7B_6Cu_1 alloy are studied. Amorphous Fe_(52)Co_(34)Hf_7B_6Cu_1 alloys are first treated by a pulsed magnetic field with a medium frequency, and then annealed at 100 °C-400 °C for 30 min in a vacuum. The rise in temperature during the treatment by a pulsed magnetic field is measured by a non-contact infrared thermometer. The soft magnetic properties of specimens are measured by a vibrating sample magnetometer (VSM). The microstructure changes of specimens are observed by a Mossbauer spectroscopy and transmission electron microscope (TEM). The results show the medium-frequency pulsating magnetic field will promote nanocrystallization of the amorphous alloy with a lower temperature rise. The nanocrystalline phase is α-Fe(Co) with bcc crystal structure, and the grain size is about 10 nm. After vacuum annealing at 100 °C for 30 min, scattering nanocrystalline phases become more uniform, the coercive force and the saturation magnetization of the specimens are 41.98 A/m and 185.15 emu/g. |
| Keyword | amorphous alloys pulsed magnetic field vacuum annealing nanocrystallization |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] |
| CSCD ID | CSCD:4740362 |
| Citation statistics |
Cited Times:6[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/151228 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.University Sci & Technol Liaoning, Coll Sci, Anshan 114044, Peoples R China |
| Recommended Citation GB/T 7714 | Gu Yue,Chao YueSheng,Zhang YanHui. Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing[J]. CHINESE PHYSICS B,2012,21(12). |
| APA | Gu Yue,Chao YueSheng,&Zhang YanHui.(2012).Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing.CHINESE PHYSICS B,21(12). |
| MLA | Gu Yue,et al."Soft magnetic properties of amorphous Fe52Co34Hf7B6Cu1 alloy treated by pulsed magnetic field and annealing".CHINESE PHYSICS B 21.12(2012). |
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