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A Theory of Internal Friction Peak Due to Thermal Unpinning of Dislocations and Its Application to P_1 Peak in Copper
http://hdl.handle.net/10097/27353
http://hdl.handle.net/10097/273539aa92efc-e77e-4d6f-8155-6ba3d242f894
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004197144.pdf (40.7 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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| 公開日 | 2008-05-02 | |||||||||
| タイトル | ||||||||||
| タイトル | A Theory of Internal Friction Peak Due to Thermal Unpinning of Dislocations and Its Application to P_1 Peak in Copper | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 著者 |
KOIWA, M.
× KOIWA, M.
× HASIGUTI, R. R.
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | A theory of internal frictions due to thermal unpinning of dislocations was developed. The results of quantitative calculations are as follows. (1) An internal friction peak as a function of temperature is formed, of which the shape is different from that of the Debye type single relaxation. (2) The distortion of the peak shape increases linearly with the strain amplitude. (3) The peak height of the internal friction and the magnitude of the associated ΔM effect are related by the equation, Q^<-1>_<max>=0.126Δ_M. (4) The mean pinning distance can be estimated from experimental results. The predictions of the theory were compared with the experimental characteristics of the P_1 peak in deformed copper, and a satisfactory agreement was found especially as to the distortion of the peak with the strain amplitude. The estimated pinning distance was found to decrease from 200b to 20b as the deformation increases, where b is the magnitude of Burgers vector, and was found to remain constant or rather slightly increase with the decay (or annealing) of the P_1 peak. | |||||||||
| 書誌情報 |
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 巻 19, p. 80-80, 発行日 1967 |
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| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 00408808 | |||||||||
| 書誌レコードID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA00836167 | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | application/pdf | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 出版者 | ||||||||||
| 出版者 | Tohoku University | |||||||||
| 資源タイプ | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 紀要類(bulletin) | |||||||||
| 登録日 | ||||||||||
| 日付 | 2008-05-02 | |||||||||
| 日付タイプ | Created | |||||||||
| 公開日（投稿完了日） | ||||||||||
| 日付 | 2008-05-02 | |||||||||
| 日付タイプ | Created | |||||||||
| 発行日 | ||||||||||
| 日付 | 1967 | |||||||||
| 日付タイプ | Created | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 40742 bytes | |||||||||
| 更新日 | ||||||||||
| 日付 | 2010-01-27 | |||||||||
| 日付タイプ | Created | |||||||||
