Damping Capacity of Gentalloy in the Fe-Co Alloys
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- Masumoto Hakaru
- The Research Institute of Electric and Magnetic Alloys
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- Sawaya Showhachi
- The Research Institute of Electric and Magnetic Alloys
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- Hinai Masakatsu
- The Research Institute of Electric and Magnetic Alloys
Bibliographic Information
- Other Title
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- Fe-Co系合金Gentalloyの減衰能について
- Fe Coケイ ゴウキン Gentalloy ノ ゲンスイノウ ニ ツイテ
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Abstract
The measurements of internal friction Q−1 under tensile loading and mechanical properties have been carried out on open-melted Fe-Co alloys containing 5∼25%Co subjected to annealing at 900∼1200°C. The value of Q−1 at a frequency of 0.3∼1.1 Hz first increases sharply to a maximum with an increase in maximum shear strain amplitude and then decreases gradually. The higher the annealing temperature and the Co content, the greater becomes Q−1. An Fe-25%Co alloy exhibits the highest Q−1 value of 75×10−3 when annealed at 1200°C for 1 h. When the measuring temperature becomes higher, the Q−1 value at first decreases from about 400°C and sharply increases after reaching a minimum in the vicinity of 550°C. Moreover, the Q−1 value decreases rapidly with an increase in external d.c. magnetic field. The mechanical strength of Fe-Co alloys increases considerably with Co content.
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 42 (4), 337-340, 1978
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282681460140032
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- NII Article ID
- 130007335472
- 40002874098
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 1940234
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed