The Rolling and Annealing Characteristics of Molybdenum Fiber-reinforced Copper Composites through Internal Friction Measurements
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- Umakoshi Y\={u}kichi
- Department of Metallurgy, Faculty of Engineering, Osaka University
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- Yamane Toshimi
- Department of Metallurgy, Faculty of Engineering, Osaka University
抄録
The deformation and annealing behaviors of copper composites containing various volume fractions of molybdenum were studied by means of internal friction measurements.<BR>The results obtained are as follows:<BR>(1) Strain amplitude-independent internal friction of copper composites containing molybdenum more than the critical volume fraction decreased sharply by a low reduction by cold rolling. This may be attributed to the locking of free vibratile dislocations, which were produced by the difference in thermal expansion coefficient between copper and molybdenum, by cold rolling.<BR>(2) Strain amplitude-independent internal friction of pure copper and copper composites containing molybdenum less than the critical volume fraction increased with increasing reduction by cold rolling; after attaining a peak around 5% reduction by cold rolling, the value decreased and then increased rapidly.<BR>(3) Strain amplitude-independent internal friction of the cold rolled pure copper decreased by annealing up to about 100°C (recovery), and at 100° to 150°C (recrystallization) in two steps. Strain amplitude-independent internal friction of the composites decreased by annealing corresponding to the recovery and recrystallization of the copper matrix, but the value increased by annealing above about 200°C.
収録刊行物
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- Transactions of the Japan Institute of Metals
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Transactions of the Japan Institute of Metals 13 (3), 160-166, 1972
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
- 1390282680093816704
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- NII論文ID
- 130003485141
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- COI
- 1:CAS:528:DyaE38Xks1Gms7s%3D
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- ISSN
- 24324701
- 00214434
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可