書誌事項
- タイトル別名
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- Internal Friction in Nickel
- Ni ノ ナイブ マサツ
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The internal friction in a high-purity nickel was measured as a function of temperature, using a torsion pendulum at a low frequency of vibration. The internal-friction curve consists of a background damping which increases as the temperature increases, and a peak at 510°C (0.44 cps) due to grain-boundary stress relaxation with an associated activation energy of 63,500 cal/mol. The limited data reviewed lead to the conclusion that neither the lattice self-diffusion nor the grain-boundary self-diffusion is the rate-determining process for grain-boundary stress relaxation, although this value for the activation energy associated with grain-boundary stress relaxation in nickel is consistent with that for lattice self-diffusion, and with the value for creep. The coefficient of viscosity of the grain boundary at the melting point, estimated from internal-friction measurements, using a modified Ke’s equation, is much smaller than (all the experimentally) determined values for many other liquid metals. Oxygen in nickel reduces the peak due to grain-boundary stress relaxation substantially.
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 24 (3), 191-195, 1960
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282681457766272
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- NII論文ID
- 130007332445
- 40018257644
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 9153084
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- データソース種別
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- JaLC
- NDL
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