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Affiliation |
Faculty of Engineering, Division of Systems Research |
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Job Title |
Professor |
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Date of Birth |
1969 |
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Research Fields, Keywords |
Microstructural Control and Analysis, Computational Materials Science, Structural Materials Design |
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Mail Address |
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Web Site |
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Related SDGs |
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HIROSAWA Shoichi
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ORCID
The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 Comparative and complementary characterization of precipitate microstructures in Al-Mg-Si(-Li) alloys by transmission electron microscopy, energy dispersive X-ray spectroscopy and atom probe tomography 2015.02
【Published Thesis】 Methods for Designing Concurrently Strengthened Severely Deformed Age-Hardenable Aluminum Alloys by Ultrafine-Grained and Precipitation Hardenings 2013.08
【Published Thesis】 Concurrent strengthening of ultrafine-grained age-hardenable Al-Mg alloy by means of high-pressure torsion and spinodal decomposition 2017.06
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 Direct CALPHAD coupling phase-field model: Closed-form expression for interface composition satisfying equal diffusion potential condition(PHYSICAL REVIEW E) 2024.06
【Published Thesis】 Improvement of battery performance by applying iron-containing recycled aluminum to current collector-free anode of lithium-ion batteries 2023.05
【Published Thesis】 ISIJ International 2023.06
【Published Thesis】 Computational Materials Science 2023.02
【Published Thesis】 Materials Transactions 2023.02
Education 【 display / non-display 】
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-1998
Tokyo Institute of Technology Department of Metallurgical Engineering Doctor Course Completed
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-1995
Tokyo Institute of Technology Department of Metallurgical Engineering Master Course Completed
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-1993
Tokyo Institute of Technology Department of Metallurgical Engineering Graduated
Degree 【 display / non-display 】
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Doctor of Engineering - Tokyo Institute of Technology
Campus Career 【 display / non-display 】
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2017.4
Duty Yokohama National UniversityFaculty of Engineering Division of Systems Research Professor
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2014.4-2017.3
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Professor
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2007.4-2014.3
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Associate Professor
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2018.4
Concurrently Yokohama National UniversityGraduate school of Engineering Science Department of Mechanical Engineering, Materials Science and Ocean Engineering Professor
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2017.4
Concurrently Yokohama National UniversityCollege of Engineering Science Department of Mechanical Engineering, Materials Science and Ocean Engineering Professor
External Career 【 display / non-display 】
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2025.4-2026.3
National Institute for Materials Science Researcher
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2017.10-2019.3
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2002.1-2007.3
Assistant Professor of Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology Research Assistant
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1999.4-2001.12
University of Oxford Research Associate of Department of Materials
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1998.4-1999.2
Technology and Medicine Department of Materials, Imperial College of Science Visiting Researcher
Academic Society Affiliations 【 display / non-display 】
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1993
Japan Institute of Light Metals
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1997
Japan Institute of Metals
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2017.11
自動車技術会
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2013
日本鉄鋼協会
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2007
Japan Society for Heat Treatment
Research Areas 【 display / non-display 】
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Nanotechnology/Materials / Metallic materials
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Nanotechnology/Materials / Structural and functional materials
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Nanotechnology/Materials / Material fabrication and microstructure control
Research Career 【 display / non-display 】
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Development of age-hardening technology for ultrafine-grained aluminum alloys processed by severe plastic deformation
Project Year：
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アルミニウム合金の高剛性化を実現する合金設計指導原理の確立
Project Year：
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Development of new fabrication process of Al-Mg-Si alloy sheets for body-panels of automobiles
Project Year：
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Development of novel heat-resistant aluminum alloys
Project Year：
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実験と計算科学を併用したアルミニウム合金DC鋳塊の熱間圧延中における微視的組織変化予測
Project Year：
Books 【 display / non-display 】
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課題研究報告書 アルミニウムの高剛性化を図る合金設計および熱処理方案の構築
廣澤 渉一（ Role： Contributor , アルミニウムの高剛性化を図る合金設計および熱処理方案の構築）
軽金属奨学会
Total pages：168 Responsible for pages：106-168 Language：Japanese Book type：Report
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Advanced Materials in Aerospace Engineering
S.Hirosawa, Y.Tang. Z.Horita, S.Lee, K.Matsuda, D.Terada（ Role： Contributor , "Three strategies to achieve concurrent strengthening by ultrafine-grained and precipitation hardenings for severely deformed age-hardenable aluminum alloys"）
Trans Tech Publications Inc. （ ISBN:978-3-03835-594-6 ） [Reviewed]
Total pages：266 Responsible for pages：161-166 Language：English Book type：Scholarly book
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自動車の軽量化テクノロジー～材料・成形・接合・強度、燃費・電費性能の向上を目指して～
廣澤渉一 山根健監修（ Role： Contributor , 第１章第２節第１項 巨大ひずみ加工と時効析出強化を並立させる新規アルミニウム合金の開発）
株式会社 エヌ・ティー・エス （ ISBN:978-4-86043-411-3 ） [Reviewed]
Total pages：342 Responsible for pages：31-39 Language：Japanese Book type：Scholarly book
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ナノマテリアル工学大系 第2巻ナノ金属
廣澤渉一 井上明久監修（ Role： Contributor , 第７章 第４節 モンテカルロ法を用いた計算機シミュレーション）
フジ・テクノシステム （ ISBN:4938555980 ） [Reviewed]
Total pages：880 Responsible for pages：465-472 Language：Japanese Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
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Microstructure Evolution and Role of Microalloying Elements in Phase Decomposition of Al-Li-Cu Base Alloys
Shoichi Hirosawa
Doctral thesis of Tokyo Institute of Technology 1998.3
Doctoral Thesis Single Work
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Al-Li-Cu-Zr系合金の析出組織および機械的性質に及ぼす微量添加元素の影響
廣澤 渉一
1995.3
Master Thesis Single Work
東京工業大学理工学研究科金属工学専攻
次世代の航空・宇宙用材料として期待されるAl-Li合金に種々のマイクロアロイング元素を添加し、引張試験による機械的性質の評価やTEM観察による微視的組織解析を行い、従来よりも軽量・高強度なAl-Li-Cu-Mg-Ag-Zr合金を新たに開発した
Papers 【 display / non-display 】
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An explicit integration approach for predicting the microstructures of multicomponent alloys
T.Morino, M.Ode, S.Hirosawa
NATURE COMMUNICATIONS 16 ( 1 ) 2025.7 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Effect of Dynamic Precipitation on Creep Properties of AA2618 Forged Aluminum Alloy
N.Koiso, T.Nakano, M.Ootaki, S.Hirosawa
MATERIALS TRANSACTIONS 66 ( 9 ) 1130 - 1137 2025.8 [Reviewed]
DOI Web of Science CiNii Research
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：公益社団法人 日本金属学会 Joint Work
<p>AA2618 aluminum alloy is well-known as an age-hardenable aluminum alloy with higher strength at elevated temperatures. In this study, the effect of dynamic precipitation on creep properties of AA2618 forged aluminum alloy was investigated by creep test, tensile test, transmission electron microscopy and differential scanning calorimetry. The differently aged three samples with varied yield stress: i.e. short-, middle- and long-aged samples, were prepared and then crept at 180°C under applied stress of 160–250 MPa. Although yield stress of short-aged sample was the lowest at room temperature and 180°C, the creep rupture time was the longest, and the minimum creep rate was the lowest among the three samples. Such a discrepancy between tensile and creep strength was attributed to dynamic precipitation in short-aged sample, in which newly formed precipitates during creep test compensate the softening induced by the growth and coarsening of existing GPB zones and S′/S phases. Therefore, it was clarified from this study that less stable precipitate microstructure with higher solute concentrations in the α-Al matrix of short-aged sample is good for creep resistance of this alloy system, although the tensile strength is lower than those of middle- and long-aged samples.</p>
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T.Masuda, S.Hirosawa, Z.Horita, T.Shinmei, T.Irifune, Y.Higo, Y.Tange, Y.Ohishi
Journal of the Japan Institute of Metals and Materials 89 ( 9 ) 265 - 270 2025.6 [Reviewed]
DOI Web of Science CiNii Research
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japan Institute of Metals and Materials Joint Work
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Yongpeng Tang, Toshiki Fujii, Shoichi Hirosawa, Kenji Matsuda, Daisuke Terada and Zenji Horita
J. Japan Inst. Met. Mater 89 ( 1 ) 114 - 123 2025.1 [Reviewed]
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
Other Link： https://doi.org/10.2320/jinstmet.JD202411
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KAWANA Ryohei, HIROSAWA Shoichi, OOTAKI Mitsuhiro, MAENO Tomoyoshi, SUZUKI Yasushi and YABUKI Yuuji
Materials Research Proceedings 44 368 - 373 2024.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
Other Link： https://mrforum.com/product/9781644903254-39/
Review Papers 【 display / non-display 】
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短時間加熱ホットスタンピングを用いた高Si 含有リサイクルアルミニウム合金の成形性の向上
廣澤渉一
プレス技術 63 ( 11 ) 95 - 98 2025.10 [Reviewed] [Invited]
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Heat Treatment of Aluminum Alloys
Shoichi HIROSAWA
J Japan Society for Heat Treatment 64 ( 6 ) 326 - 329 2024.12 [Reviewed] [Invited]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Shoichi HIROSAWA
Materials Transactions 65 ( 9 ) 1183 - 1192 2024.7
Authorship：Lead author, Corresponding author Language：English Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Microstructures and Precipitation Hardening of Heat-Treatable Aluminum Alloys
Shoichi HIROSAWA
70 ( 6 ) 598 - 601 2023.10 [Reviewed] [Invited]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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アルミニウム合金の諸特性とアプリケーション動向
廣澤渉一
電気加工学会誌 56 ( 142 ) 101 - 105 2022.7 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
Industrial Property Rights 【 display / non-display 】
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アルミニウム合金板の成形方法および成形体
廣澤渉一，前野智美，川名亮平，吉池諒翔，鈴木欣，矢吹勇司
Applicant：横浜国立大学，ジーテクト
Application no：2025-022257 Date applied：2025.2.14
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アルミニウム合金成形体及びその製造方法
廣澤渉一、片岡隆一、長尾隆史、田代継治、楠井潤、村上勇夫、森内直輝
Applicant：横浜国立大学、日本軽金属、東洋アルミニウム
Application no：PCT/JP2024/3801 Date applied：2024.10.25
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アルミニウム合金板の成形方法
廣澤渉一、前野智美、金准模、鈴木欣、成谷光二
Applicant：横浜国立大学、ジーテクト
Application no：PCJ/JP2022/033106 Date applied：2022.9.2
Announcement no：WO/2023/053845 Date announced：2023.4.6
Patent/Registration no：7410534 Date registered：2023.12.26 Date issued：2024.1.10
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建築構造用アルミニウム焼結合金及び製造方法
廣澤渉一、八高隆雄（横浜国大）、久保田正広（日大）、藤井文徳（アルミニウム建築構造協議会）、泉正史（日本アルミニウム協会）
Applicant：日本アルミニウム協会、横浜国立大学
Application no：特願2018-196819 Date applied：2018.10.18
Announcement no：特開2020-63489 Date announced：2020.4.23
Country of applicant：Domestic
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アルミニウム基合金
渡邊博之 廣澤渉一
Applicant：本田技研工業株式会社 国立大学法人横浜国立大学
Application no：特願2016-010567 Date applied：2016.1.22
Announcement no：特開2017-128780 Date announced：2017.7.27
Country of applicant：Domestic
Awards 【 display / non-display 】
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日本金属学会功績賞
2015.3 日本金属学会
Individual or group name of awards：廣澤渉一
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軽金属躍進賞
2014.11 軽金属学会、軽金属奨学会
Individual or group name of awards：廣澤渉一
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Light Metals Paper Prize
2010.11
Grant-in-Aid for Scientific Research 【 display / non-display 】
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連鎖型テルミット法による月土壌シミュラントからの建築構造用金属素材の溶製
Grant number：24K08075 2024.4 - 2027.3
日本学術振興会 科学研究費 Grant-in-Aid for Scientific Research(C)
Investigator(s)：廣澤渉一
Authorship：Principal investigator Grant type：Competitive
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Elucidation of nano-precipitate strengthening mechanism in aluminum alloys by in-situ tensile-testing TEM observation and dislocation dynamics
Grant number：21H01649 2021.4 - 2024.3
Grant-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(B)
Investigator(s)：Shoichi HIROSAWA
Grant type：Competitive
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超音波印加加工処理によるアルミニウム合金板材の成形性および表面品質の向上
Grant number：22560692 2010.4 - 2013.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Investigator(s)：廣澤渉一
Grant type：Competitive
Other external funds procured 【 display / non-display 】
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アルミニウムの高剛性化を図る合金設計および熱処理方案の構築
2017.4 - 2019.3
Local Government 軽金属奨学会課題研究
Investigator(s)：廣澤渉一
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Development of novel wrought aluminum alloys concurrently strengthened by ultrafine-grained and precipitation hardenings and establishment of guidelines for the innovative alloy designing
2011.10 - 2017.3
Japan Science and Technology Agency Collaborative Research Based on Industrial Demand "Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials"
Investigator(s)：Shoichi HIROSAWA
Presentations 【 display / non-display 】
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短時間加熱ホットスタンピングを用いた高Si含有リサイクルアルミニウム合金展伸材の成形性の向上
廣澤渉一 [Invited]
日本鉄鋼協会・日本金属学会共催第7回自動車関連材料合同シンポジウム「モビリティの未来に挑戦する革新的材料技術」 2025.9 日本金属学会
Event date： 2025.9
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：北海道大学
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Evaluation of slip behavior of mobile dislocations during in-situ tensile testing TEM observation of Al-Mg-Si alloys
S.Hirosawa [Invited]
THERMEC’2025 International Conference on processing & manufacturing of advanced materials 2025.6 University of Tours
Event date： 2025.6 - 2025.7
Language：English Presentation type：Oral presentation (invited, special)
Venue：Tours, France Country：France
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Evaluation of slip behavior of mobile dislocations during in-situ tensile testing TEM observation of Al-Mg-Si alloys
S.Hirosawa [Invited]
3rd Global Conference on Innovative Materials (GCIM2025) 2025.6 The Materials Research Society of Korea
Event date： 2025.6
Language：English Presentation type：Oral presentation (invited, special)
Venue：ICC Jeju Country：Korea, Republic of
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Evaluation of slip behavior of mobile dislocations during in-situ tensile testing TEM observation of Al-Mg-Si alloys
S.Hirosawa
The 20th International Conference on Strength of Materials (ICSMA20) 2025.6 日本金属学会
Event date： 2025.6
Language：English Presentation type：Oral presentation (general)
Venue：京都
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短時間加熱ホットスタンピングを用いた高Si含有リサイクルアルミニウム合金展伸材の成形性の向上
廣澤渉一 [Invited]
自動車技術会フォーラム「モビリティの未来に挑戦する革新的材料技術 II（軽金属・化成品）」 2025.5 j自動車技術会
Event date： 2025.5
Language：Japanese Presentation type：Oral presentation (general)
Venue：パシフィコ横浜
Past of Collaboration and Commissioned Research 【 display / non-display 】
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軽金属奨学会課題研究「アルミニウムの高剛性化を図る合金設計および熱処理方案の構築」
Offer organization: 軽金属奨学会 Funded Research offered by Enterprises
Project Year： 2017.4 - 2019.3
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Japan Science and Technology Agency (JST) under Collaborative Research Based on Industrial Demand "Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials"
Cooperative Research within Japan
Project Year： 2011.10 - 2017.3
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アルミニウム合金の高温長時間保持後の特性予測
Funded Research offered by Enterprises
Project Year： 2017.4 - 2019.3
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自動車用アルミニウム合金の焼付塗装硬化特性に関する研究
Funded Research offered by Enterprises
Project Year： 2012.4 -
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アルミニウム合金の成形後人工時効レスホットスタンピングの開発
Offer organization: ジーテクト Cooperative Research within Japan
Project Year： 2019.4 - 2025.3
Charge of on-campus class subject 【 display / non-display 】
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2025 Exercise in Materials Engineering B
Graduate school of Engineering Science
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2025 Exercise in Materials Engineering A
Graduate school of Engineering Science
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2025 Advanced Materials Engineering
Graduate school of Engineering Science
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2025 Diffusional Transformations in Solids
Graduate school of Engineering Science
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2025 Physical Metallurgy and Excersises II
College of Engineering Science
Charge of off-campus class subject 【 display / non-display 】
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金属工学実験
Institution：東京工業大学
Committee Memberships 【 display / non-display 】
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公益社団法人 軽金属学会
2025.6 - 2027.6 副会長、理事、総合計画委員会委員長。6000系アルミニウム合金の相変態挙動および材料物性に関する研究部会長
Committee type：Academic society
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公益社団法人日本金属学会
2022.4 - 2026.4 代議員
Committee type：Academic society
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経済産業省 産業構造審議会
2019.2 - 2024.1 臨時委員
Committee type：Government
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公益社団法人 自動車技術会 材料部門委員会
2018.4 - 2026.3 委員
Committee type：Academic society
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一般社団法人 日本アルミニウム協会
2021.6 - 2027.5 産学懇談会 委員
Committee type：Academic society
Social Contribution(Extension lecture) 【 display / non-display 】
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軽金属セミナー「アルミニウム合金の組織―中級編（時効析出）」
Role(s)： Lecturer
軽金属学会 2025.3
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神奈川県立産業技術総合研究所「アルミニウム合金の基礎と応用セミナー」
Role(s)： Lecturer
神奈川県立産業技術総合研究所 2024.12
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R&D支援セミナー「アルミニウムおよびアルミニウム合金の基礎」
Role(s)： Lecturer
R&D支援センター 2024.4
Audience： Researchers, Company
Type：Seminar, workshop
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神奈川県立産業技術総合研究所「アルミニウム合金の基礎と応用セミナー」
Role(s)： Lecturer
神奈川県立産業技術総合研究所 アルミニウム合金の基礎と応用セミナー 2023.12
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軽金属セミナー「アルミニウム合金の組織―中級編（時効析出）」
Role(s)： Lecturer
軽金属学会 軽金属セミナー 2023.12