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Microstructure and compressive properties of porous hybrid materials consisting of ductile Al/Ti and brittle Al3Ti phases fabricated by reaction sintering with space holder
http://hdl.handle.net/2237/00032346
http://hdl.handle.net/2237/00032346457620c1-8acf-4036-92cc-6a7082397909
名前 / ファイル | ライセンス | アクション |
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manuscript (1.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-06-11 | |||||
タイトル | ||||||
タイトル | Microstructure and compressive properties of porous hybrid materials consisting of ductile Al/Ti and brittle Al3Ti phases fabricated by reaction sintering with space holder | |||||
言語 | en | |||||
著者 |
Suzuki, Asuka
× Suzuki, Asuka× Kosugi, Naoki× Takata, Naoki× 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 | Porous metals | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Energy absorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Reaction sintering | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Space holder method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ductile/brittle phases hybrid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Titanium aluminide | |||||
抄録 | ||||||
内容記述 | The strain-hardening of cell wall in porous metals decreases the energy absorption properties. In order to suppress the strain hardening, porous hybrid materials consisting of ductile Al and Ti phases and brittle Al3Ti phase were synthesized by reaction sintering between Al and Ti powders with NaCl space holder. Changes in the porous structure and microstructure with sintering were investigated. Area fraction of Al3Ti phase formed at Al/Ti interface increased following the Johnson-Mehl-Avrami-Koromogrov (JMAK) equation of three-dimensional diffusion-controlled growth with zero nucleation rate. The growth of Al3Ti phase led to the formation of pores and cracks in cell wall by Kirkendall effect and volume shrinkage. Effect of microstructure on compressive properties of the porous Al/Al3Ti/Ti hybrids were also investigated. Porous hybrids consisting of α-Al matrix exhibited the plateau region with positive slopes due to the strain hardening of α-Al phase. Porous hybrids consisting of Al3Ti matrix exhibited the plateau region with the slope of almost zero, resulting in high energy absorption capacity and efficiency. Fractography revealed that crack propagated in brittle Al3Ti phase but arrested at α-Al phase. These results were used to discuss the microstructure for improving energy absorption properties. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2022-03-03 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
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.msea.2020.139000 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0921-5093 | |||||
書誌情報 |
en : Materials Science and Engineering: A 巻 776, p. 139000, 発行日 2020-03-03 |
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著者版フラグ | ||||||
値 | author |