Damping Capacity of Al-Ge Alloys
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- Hinai Masakatsu
- The Research Institute for Electric and Magnetic Materials
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- Sawaya Showhachi
- The Research Institute for Electric and Magnetic Materials
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- Masumoto Hakaru
- The Research Institute for Electric and Magnetic Materials
Bibliographic Information
- Other Title
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- Al-Ge合金の振動減衰能
- Al Ge ゴウキン ノ シンドウ ゲンスイノウ
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Abstract
The logarithmic decrement δ and the rigidity modulus G were investigated for heat-treated and cold-worked Al-Ge alloys containing 2 to 20 mass%Ge. The δ and G values were measured by an inverted torsion pendulum method.<BR>The δ values upon furnace cooling were somewhat higher than those upon water quenching, which were as low as 0.007. By cold working after heat treatment, the δ values of all alloys were increased considerably. With increasing Ge concentration, the δ upon cold working increased abruptly to 5 mass%Ge and then increased gradually. Moreover, in alloys cold worked after furnace cooling, the δ became higher than those cold-worked after water quenching.<BR>With increasing Ge concentration, the G increased, and cold working after heat treatment caused G to decrease. The ΔG effect increased abruptly up to 5 mass%Ge and then increased gradually, and high δ values were obtained in the alloys with a large ΔG effect.
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 55 (5), 601-604, 1991
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
- 1390001206486096000
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- NII Article ID
- 130007340178
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 3720957
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed