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Effect of the near-net shape forming on silicon morphology in an Al–Si functionally graded material generated by the centrifugal method
http://hdl.handle.net/10232/25958
http://hdl.handle.net/10232/259582ed94db8-5359-426a-a21e-183d518ae525
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Semi-solid(Al-Si FGM) 20150401.13.pdf (5.3 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 | Effect of the near-net shape forming on silicon morphology in an Al–Si functionally graded material generated by the centrifugal method | |||||
| 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× 中尾, 光博× 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 | Functionally Graded Material | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Hypereutectic Al–Si alloy | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Near-Net Shape Forming | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Visco-Plastic Flow | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Refinement of Particle | |||||
| 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 | A work toward practical usage of hypereutectic Al–25 mass% Si alloy, which exhibits superior properties, as a functionally graded material (FGM) was done. The Al–Si FGM, which is based on the concept of overcoming the limitations imposed by the presence of a hard silicon phase in an aluminum matrix, was generated by a vacuum centrifugal method as a thick-walled tube. Grain coarsening, which is the primary disadvantage of the centrifugal method, was observed. The fraction of silicon phase in the tube unexpectedly varied from greater than 60 mass% at the outer surface to 15 mass% at the inner surface because of the greater density of molten silicon compared to that of the eutectic melt. Thus, the outer region of the tube was lighter than the inner region after solidification. FGM billets for near-net shape forming were machined from the thick-walled tube and were formed into an Al–Si FGM cup using a backward extruding. The products of the FGM cup were successfully manufactured in the temperature range from 853 K (580 ℃) to 863 K (590 ℃) through visco-plastic deformation. The fraction of silicon phase in the FGM cup varied from greater than 70 mass% Si at the formed cup bottom region to less than 15 mass% Si at the cup wall region. Coarse silicon particles were refined irrespective of the pre-existence of elongated spindle-shaped particles under some experimental conditions. The optimum operating conditions were inferred to be high-speed operation at approximately 853 K (580 ℃), which was just above the melting point of the eutectic Al–Si alloy. | |||||
| 内容記述言語 | en | |||||
| 収録雑誌名 |
en : International Journal of Materials Science and Applications 巻 4, 号 1, p. 12-19, 発行日 2015 |
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| 作成日 | ||||||
| 日付 | 2015-01-01 | |||||
| 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.20150401.13 | |||||
| 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 | |||||
