Microstructure refinement and mechanical properties improvement of Al-Si-Fe alloys by hot extrusion using a specially designed high-strain die

Sakow, Shino; Tokunaga, Toko; Ohno, Munekazu; Matsuura, Kiyotaka

Microstructure refinement and mechanical properties improvement of Al-Si-Fe alloys by hot extrusion using a specially designed high-strain die

Sakow, Shino; Tokunaga, Toko; Ohno, Munekazu et al.

Journal of materials processing technology, 2020, 277, 116447

Permalink : https://hdl.handle.net/2115/84213

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アクセス権	open access
URI	https://hdl.handle.net/2115/84213
タイトル	Microstructure refinement and mechanical properties improvement of Al-Si-Fe alloys by hot extrusion using a specially designed high-strain die
著者	Sakow, Shino ; Tokunaga, Toko ; Ohno, Munekazu ; Matsuura, Kiyotaka
著者名 Sakow, Shino
著者名 Tokunaga, Toko
e-Rad_Researcher 30431331 著者名 Ohno, Munekazu
e-Rad_Researcher 60142692 著者名 Matsuura, Kiyotaka
言語	英語
キーワード	Al-Si alloy
	Intermetallic phase
	Heteromorphic die extrusion
	Elongation
発行日	2020-03
出版者	Elsevier
収録物名	Journal of materials processing technology
巻(号)	277
ページ	116447
抄録	A heteromorphic extrusion die with right-angle corners in the die hole was designed in this study to give a high local strain to the extrudate metal during hot extrusion of Al-Si-Fe alloys, and the strain distribution in the extrudate metal was evaluated using the finite element method. It was demonstrated that the change in metal flow direction at the right-angle corners is effective for generating high strain in the extrudate metal and refining brittle inclusion particles such as primary Al9Si2Fe2 (beta phase) particles and eutectic Si particles. The refinement of these particles led to significant improvements in tensile elongation and plastic deformability in cold rolling of the alloys.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
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/
PISSN	0924-0136
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jmatprotec.2019.116447