Effect of Si Content and Particle Size on Damping Property of Powder Forged Al-Si Alloy.
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- Kondoh Katsuyoshi
- Sumitomo Electric Industries Ltd.
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- Hashikura Manabu
- Sumitomo Electric Industries Ltd.
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- Takeda Yoshinobu
- Sumitomo Electric Industries Ltd.
Bibliographic Information
- Other Title
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- Al‐Si系粉末合金の減衰特性に及ぼすSi含有量と粒子径の影響
- Al-Siケイ フンマツ ゴウキン ノ ゲンスイ トクセイ ニ オヨボス Si ガンユウリョウ ト リュウシケイ ノ エイキョウ
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Abstract
Effects of the Si content and Si crystalline size on damping property of Powder Forged (P/F) Al-Si alloys were investigated by a Fast Fourier Transformation (FFT) analyzer. A quantitative image analysis method was successfully used to determine a mean diameter and distribution of Si crystals in the aluminum alloy. The damping capacity δ strongly depends on the mean diameter of Si crystals. δ of heat treated specimens with Si crystals of 2 to 5 micron meters is 4 to 25 times smaller than that of as-forged specimens with those of 1 to 5 micron meters. It indicates that the vibration occurred by knocking on the specimen is absorbed at boundary between Si particles and aluminum matrix. Therefore, fine distribution of Si crystals and/or elimination of crystal coarsening contribute to the good damping property.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 46 (7), 715-721, 1999
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390282681285746944
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- NII Article ID
- 10005740856
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 4800766
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed