Affiliation Department |
Department of Physical Science and Engineering
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Title |
Assistant Professor |
External Link |
TOKUNAGA Toko
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From School
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Hokkaido University Graduate School of Engineering, Graduated
2013.04 - 2015.06
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AGH University of Science and Technology Faculty of Metals Engineering and Industrial Computer Science Graduated
2013.04 - 2015
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Hokkaido University Graduate School of Engineering Graduated
2011.04 - 2013.03
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Hokkaido University Faculty of Engineering Graduated
2007.04 - 2011.03
Papers
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Effects of cementite particles on impact properties in high-hardness hypereutectoid steels Reviewed
T. Tokunaga, K. Yamamoto, Y. Minamino, T. Takayama, T. Sugimoto, K. Hagihara
ISIJ International 64 ( 2 ) 2024
Authorship:Lead author Language:English Publishing type:Research paper (scientific journal)
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Kink-band formation in the directionally-solidified Mg/LPSO two-phase alloys Reviewed
T. Tokunaga, K. Hagihara, M. Yamasaki, T. Mayama, K. Yamamoto, H. Narimoto, T. Kida, Y. Kawamura, T. Nakano
Science and Technology of Advanced Materials 2022.10
Authorship:Lead author Language:English Publishing type:Research paper (scientific journal)
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Microstructural factors governing the significant strengthening of Al/Al2Cu mille-feuille structured alloys accompanied by kink-band formation Reviewed International coauthorship
K. Hagihara, T. Tokunaga, S. Ohsawa, S. Uemichi, K. Guan, D. Egusa, E.Abe
International Journal of Plasticity 158 103419 2022.09
Language:English Publishing type:Research paper (scientific journal)
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青森県量子科学センターにおけるBNCT
Toko Tokunaga, Shingo Hachinohe, Hiroyoshi Kikuchi, Toyomi Baba
36 ( 2 ) 62 - 63 2021.02
Publishing type:Research paper (scientific journal)
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Development of High Corrosion- and Wear-Resistant Al-Si Alloy Coating on AZ80 Mg Alloy by Hot Extrusion Reviewed
Toko Tokunaga, Kazushi Sotomoto, Munekazu Ohno, Kiyotaka Matsuura
Journal of Materials Engineering and Performance 29 6355 - 6362 2020
Language:English Publishing type:Research paper (scientific journal)
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Microstructure refinement and mechanical properties improvement of Al-Si-Fe alloys by hot extrusion using a specially designed high-strain die Reviewed
Sakow Shino, Toko Tokunaga, Munekazu Ohno, Kiyotaka Matsuura
Journal of Materials Processing Technology 277 ( 116447 ) 1 - 9 2020
Language:English Publishing type:Research paper (scientific journal)
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Enhancement of ductility for Al–Si–Fe alloy by refining β phase with a novel ball-die extrusion Reviewed
Toko Tokunaga, Haruki Inubushi
SN Applied Sciences 1 ( 10 ) 1334 2019.10
Language:English Publishing type:Research paper (scientific journal) Publisher:Springer Science and Business Media LLC
DOI: 10.1007/s42452-019-1377-4
Other Link: http://link.springer.com/article/10.1007/s42452-019-1377-4/fulltext.html
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Microstructure evolution during superplastic deformation of an Al-coated Mg alloy sheet Reviewed
T. Tokunaga, M. Ohno
Journal of Alloys and Compounds 805 436 - 443 2019
Language:English Publishing type:Research paper (scientific journal)
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Fabrication of Al-Coated Mg-Li Alloy Sheet and Investigation of Its Properties Reviewed
T. L. Zhang, T. Tokunaga, M. Ohno, M. L. Zhang, K. Matsuura
Acta Metallurgica Sinica (English Letters) 32 169 - 177 2019
Language:English Publishing type:Research paper (scientific journal)
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Coating on magnesium alloy with super duralumin by hot extrusion and evaluation of its surface properties Reviewed
Toko Tokunaga, Kazushi Sotomoto, Munekazu Ohno, Kiyotaka Matsuura
Materials Transactions 59 ( 3 ) 432 - 436 2018
Language:English Publishing type:Research paper (scientific journal) Publisher:Japan Institute of Metals (JIM)
The poor corrosion resistance of Mg alloys, which is well known as one of the lightest structural metal materials, limits a wide use of these alloys. In order to dramatically increase not only the corrosion resistance but also the surface hardness of Mg alloys (AZ80), coating with A2024 Al alloy by hot extrusion has been attempted in this study. The coating was successfully realized by hot extrusion of a Mg alloy (AZ80) billet together with an Al alloy plate placed between the billet and the extrusion die. The A2024 Al alloy-coated Mg alloy exhibited an excellent corrosion resistance and no weight loss was observed after immersion in a 5 mass% HCl aqueous solution for 10 min while a weight loss of about 1500 g・m−2 was observed in case of AZ80 Mg alloy without coating under the same condition. The surface hardness of the coated alloy was increased to about 85 HV by aging for 144 h at room temperature after solution treatment for 3 h at 673 K.
Misc
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Al,Mg基先進的高機能性構造材料の創製に関する研究 Invited
徳永透子
72 618 - 618 2022.10
Authorship:Lead author, Corresponding author Language:Japanese Publishing type:Article, review, commentary, editorial, etc. (other)
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芯のある研究者を目指して
徳永透子
54 ( 12 ) 639 2015
Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)
Presentations
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Ti基共晶合金の微細組織制御による高強度化
徳永 透子,米村 拓哉,萩原 幸司
日本機械学会 M&M2023 材料力学カンファレンス 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Oral presentation (general)
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Multimodal微細組織を有するMg-Y-Zn合金の引張変形挙動
山崎 倫昭,堀口 皓匠,西本 宗矢,萩原 幸司,徳永 透子,眞山 剛
日本機械学会 M&M2023 材料力学カンファレンス 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Oral presentation (general)
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種々の押出Mg合金における組織と力学特性の相関
萩原 幸司,眞山 剛,Stefanus Harjo,徳永 透子,山本 和輝,杉田 三佳,Wu Gong,山崎 倫昭
日本機械学会 M&M2023 材料力学カンファレンス 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Oral presentation (general)
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高硬度高靭性過共析鋼の熱処理条件と力学特性の相関
中北颯,徳永透子,萩原幸司,山本 幸治,杉本 隼之,南埜 宜俊
日本鉄鋼協会 2023年第186回秋季講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Oral presentation (general)
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超高強度鉄鋼材料の熱処理に伴う組織形成過程の解明
原田 直哉,徳永 透子,萩原 幸司,山本 幸治,杉本 隼之,南埜 宜俊
日本鉄鋼協会 2023年第186回秋季講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Poster presentation
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不均一組織を有するMg-Y-Zn合金押出材の引張・圧縮変形挙動の調査 International coauthorship
堀口 皓匠、山崎 倫昭、眞山 剛、萩原 幸司、徳永 透子、Harjo Stefanaus、Drozdenko Daria、Mathis Kristian
日本金属学会2023年秋期(第173回)講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Oral presentation (general)
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レーザ粉末床溶融結合による六方晶系合金の結晶集合組織制御
木澤 雄太、小笹 良輔、徳永 透子、萩原 幸司、中野 貴由
日本金属学会2023年秋期(第173回)講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Oral presentation (general)
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Ti基複相ハイエントロピーミルフィーユ合金の開発、高機能化の検討
中田 龍之介、萩原 幸司、徳永 透子
日本金属学会2023年秋期(第173回)講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Poster presentation
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“非ラメラ型”複相材料の局所変形誘導による配向制御と機能性向上
廣野 零二、萩原 幸司、徳永 透子、眞山 剛
日本金属学会2023年秋期(第173回)講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Poster presentation
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Mg-Y-Znマルチモーダル押出材の圧縮変形機構解析
杉田 三佳、萩原 幸司、徳永 透子、眞山 剛、山崎 倫昭
日本金属学会2023年秋期(第173回)講演大会 2023.09
Event date: 2023.09
Language:Japanese Presentation type:Poster presentation
Awards
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第15回軽金属女性未来賞受賞
2023.11 一般社団法人 軽金属学会
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2023年度名古屋工業大学「女性が拓く未来賞」
2023.09 名古屋工業大学
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令和4年度日本マグネシウム協会賞
2023.06 一般社団法人日本マグネシウム協会
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第40回軽金属奨励賞
2022.11 一般社団法人軽金属学会 アルミニウム,マグネシウム基先進的高機能性構造材料の創製に関する研究
徳永透子
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第32回 日本金属学会奨励賞
2022.09 日本金属学会 各種金属材料の組織制御による強度・機能性向上に関する研究
徳永透子
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優秀発表賞
2022.03 新学術領域研究「ミルフィーユ構造の材料科学」 一方向性凝固Mg/LPSO二相合金におけるキンク強化
徳永透子
Award type:Award from Japanese society, conference, symposium, etc.
Teaching Experience
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物理学演習Ⅱ
2022.10 Institution:Nagoya Institute of Technology
Level:Undergraduate (liberal arts)
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材料機能工学演習Ⅱ
2021.04 Institution:Nagoya Institute of Technology
Level:Undergraduate (specialized)
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材料機能工学演習Ⅰ
2021.04 Institution:Nagoya Institute of Technology
Level:Undergraduate (specialized)
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物理学演習Ⅰ
2021.04 Institution:Nagoya Institute of Technology
Level:Undergraduate (liberal arts)
Committee Memberships
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日本金属学会 会報編集委員(第3分野世話人)
2019.04
Committee type:Academic society
Social Activities
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私が食べられないミルフィーユの話をすることになったわけ
Role(s): Lecturer
精密工学会北陸信越支部 精密工学会北陸信越支部特別講演会+ワークショップ 2022.08