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Evaluation of the rheological behavior of a semi-solid Al–SiC composite using a parallel-plate drop-forge viscometer
http://hdl.handle.net/10232/25939
http://hdl.handle.net/10232/259390dc59e2d-0815-4a1f-933d-e452106d031c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
E Semi-solid(Duralcan) .pdf (3.4 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2016-03-03 | |||||
| タイトル | ||||||
| タイトル | Evaluation of the rheological behavior of a semi-solid Al–SiC composite using a parallel-plate drop-forge viscometer | |||||
| タイトル言語 | en | |||||
| 著者 |
福井, 泰好
× 福井, 泰好× 奈良, 大作× 伏見, 和代× 熊澤, 典良 |
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| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Semi-Solid Forming | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Composite Material | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Rheology | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Visco-Plastic Flow | |||||
| 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 | journal article | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | This paper presents of studies performed to assess the effect of rheological behavior on the near-net shape forming of an Al–20 vol% SiC composite of Duralcan F3A.20S and of the mother aluminum alloy A356 for comparison. Isothermal experiments were conducted using results of a parallel-plate drop-forge viscometer in a temperature range from 849 K (576 ℃) to 862 K (590 ℃). Each experiment indicated that the viscosity decreased in the early increasing shear rate stage and subsequently increased with decreasing shear rate. The overall relationship between the viscosity, μ [Pa・s], and the shear rate, γ [s_-1], can be described by a power-law model of μ = 3.2×10^7μ^1.5 for Duralcan and μ = 1.6×10^7μ^1.5 for A356. The power-law index was the same for both materials, whereas the power-law constant of Duralcan was two times greater than that of the A356 mother alloy because of the distribution of 20 vol% SiC particles. The decrease in the viscosity that accompanied an increase in the shear rate depended on both the temperature and the applied force. The viscosities of 32 kPa・s for both Duralcan and A356 at the maximum effective duration of deformation, which obtained from the plot as a function of the viscosity, appeared to be the points at which the dominant factor governing the visco-plastic flow process transitions from plastic forming to casting. The viscosity must also represent optimum semi-solid forming conditions, as indicated by the achievement of both a moderate working time and an adequate deformation. The optimum operating temperature for both materials can be ranged from 855 K (582 ℃) to 857 K (584 ℃), which is just above the melting point. | |||||
| 内容記述言語 | en | |||||
| 収録雑誌名 |
en : International Journal of Materials Science and Applications 巻 3, 号 6, p. 344-352, 発行日 2014 |
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| 作成日 | ||||||
| 日付 | 2014-11-01 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 23272635 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| DOI | https://doi.org/10.11648/j.ijmsa.20140306.21 | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| NDC | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 501 | |||||
| 公開者・出版者 | ||||||
| 出版者 | Science Publishing Group | |||||
| 出版者言語 | en | |||||
