Grain size effects on magnetomechanical damping properties of ferromagnetic Fe-5 wt.% Al alloy
- Authors
- Seo, Young Ik; Lee, Baek-Hee; Kim, Young Do; Lee, Kyu Hwan
- Issue Date
- Sep-2006
- Keywords
- Ferromagnetic; Grain size effect; Magnetomechanical damping
- Citation
- Materials Science and Engineering A, v.431, no.01�� 02��, pp.80 - 85
- Indexed
- SCOPUS
- Journal Title
- Materials Science and Engineering A
- Volume
- 431
- Number
- 01�� 02��
- Start Page
- 80
- End Page
- 85
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181021
- DOI
- 10.1016/j.msea.2006.05.083
- ISSN
- 0921-5093
- Abstract
- To clarify the effects of grain size on the damping capacity of a ferromagnetic Fe-5 wt.% Al alloy with an average grain size of 130-845 μm, the magnetomechanical properties and microstructures were studied. The results showed a maximum damping capacity at a certain average grain size. Thus, it was proposed that the damping capacity is proportional to the total area of the 90° domain walls represented by the mean 90° domain width and the saturation magnetostriction. It can be reasonably explained that with grain growth, the saturation magnetostriction increases and the total area decreases. Leading to the result of a maximum damping capacity at a certain average grain size where the best combination of the two factors was found.
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