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Anomalous strengthening by supersaturated solid solutions of selectively laser melted Al–Si-based alloys
http://hdl.handle.net/2237/00032650
http://hdl.handle.net/2237/0003265047adc5eb-86f3-4301-947c-8196f389c5cb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ADDMA_2019_1525 (7.5 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-09-18 | |||||
| タイトル | ||||||
| タイトル | Anomalous strengthening by supersaturated solid solutions of selectively laser melted Al–Si-based alloys | |||||
| 言語 | en | |||||
| 著者 |
Takata, Naoki
× Takata, Naoki× Liu, Mulin× Kodaira, Hirohisa× Suzuki, Asuka× Kobashi, Makoto |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Additive manufacturing | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Aluminum alloy | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Strain hardening | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Rapid solidification | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Transmission electron microscopy | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To identify the dominant contributing factor in the anomalously high strength of Al–Si-based alloys fabricated by selective laser melting (SLM), microstructural characteristics of a SLM-built Al–10Si–0.3 Mg alloy (AlSi10Mg) and their changes upon annealing at elevated temperatures were investigated. The as-built AlSi10Mg alloy exhibits a peculiar microstructure comprising of a number of columnar α-Al (fcc) phase with concentrated Si in solution. Numerous nano-sized particles were observed within the α-Al matrix. At elevated temperatures, a number of Si phase (diamond structure) precipitates consumed the solute Si in the columnar α-Al phase, but the microstructure of the α-Al matrix changed slightly. After annealing at elevated temperatures, the tensile strength of the as-built AlSi10Mg alloy substantially decreased accompanied by a reduction in the strain hardening rate. The supersaturated solid solution of the α-Al phase containing numerous nano-sized particles enhanced the strain hardening, resulting in the anomalous strengthening of the SLM-built AlSi10Mg alloy. The microstructural features were formed due to rapid solidification at an extremely high cooling rate in the SLM process, which provides important insights into controlling the strength of Al–Si-based alloys fabricated by SLM. | |||||
| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | ファイル公開日: 2022/05/01 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 言語 | en | |||||
| 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 | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.addma.2020.101152 | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 2214-8604 | |||||
| 書誌情報 |
en : Additive Manufacturing 巻 33, p. 101152, 発行日 2020-05 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
