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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】 MATERIALS TRANSACTIONS 2023.02
【Published Thesis】 ISIJ International 2023.06
【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】 Computational Materials Science 2023.02
【Published Thesis】 Considerable improvement in elastic moduli and the underlying mechanism of Al-Cu-Zn alloy subjected to aging treatments(Materialia) 2020.12
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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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
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1997.4-1999.3
Japan Society for the Promotion of Science Special researcher of the Japan Society for the Promotion of Science
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 material properties
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Nanotechnology/Materials / Structural materials and functional materials
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Nanotechnology/Materials / Material processing 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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234 ( 0 ) 115504 2023.5 [Reviewed]
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://www.sciencedirect.com/science/article/pii/S1359646223002282
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Xu Hengxin, Hirosawa Shoichi, Tanimura Makoto
Vacuum 216 112397 2023.10 [Reviewed]
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Joint Work
Other Link： https://www.sciencedirect.com/science/article/pii/S0042207X23005948
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Tang Yongpeng, Fujii Toshiki, Hirosawa Shoichi, Matsuda Kenji, Terada Daisuke, Horita Zenji
Materials Transactions 64 ( 8 ) 1902 - 1911 2023.8 [Reviewed]
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>This study presents that A1050 commercial-purity aluminum increases the tensile strength and ductility using the processes of accumulative roll bonding (ARB) and high-pressure sliding (HPS). Both processes yield a similar tensile strength exceeding 240 MPa after processing by ARB for 10 cycles and by HPS for the sliding distance of 15 mm, respectively. The stress-strain behavior is evaluated through microstructure observations and measurements of strain hardening rates. Significant grain refinement with well-defined grain boundaries is responsible for the strength increase. The grain refinement also leads to an increase in strain hardening rate and thus an increase in the ductility.</p>
Other Link： https://doi.org/10.2320/matertrans.MT-MF2022047
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Hydrogen embrittlement mechanism of ultrafine-grained iron with different grain sizes
Mitomi Satoshi, Iwaoka Hideaki, Hirosawa Shoichi
ISIJ International 63 ( 6 ) 1096 - 1106 2023.6 [Reviewed]
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 日本鉄鋼協会 Joint Work
<p>To investigate the effect of grain sizes on hydrogen embrittlement of 4N-purity iron, miniature tensile tests were conducted after hydrogen charging for the ultrafine-grained specimens produced by high-pressure torsion and subsequent annealing. Hydrogen embrittlement indexes defined from reduction of area were increased with decreasing grain size, and shear-type fracture occurred with fine dimples on the fracture surface of the diagonally raptured tensile specimen with a smaller grain size. The formation and growth of microvoids at triple junctions of grain boundaries ahead of propagated cracks were responsible for such earlier shear-type fracture because necking between adjacent microvoids more likely and extensively occurred. In the specimens with larger grain sizes or without hydrogen charging, on the other hand, local coalescence and growth of microvoids were predominant due to longer distances between triple junctions, resulting in void coalescence-type fracture with coarser dimple patterns. Therefore, hydrogen atoms introduced by hydrogen charging are considered to enhance the formation of deformation-induced vacancies in ultrafine-grained iron, resulting in shear-type fracture with finer dimple patterns.</p>
Other Link： https://www.jstage.jst.go.jp/article/isijinternational/63/6/63_ISIJINT-2022-562/_article/-char/en
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Hengxin Xu, Shota Nozaki, Shoichi Hirosawa, Tetsushin On, Hideaki Iwaoka
Computational Materials Science 221 112072 2023.2 [Reviewed]
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Joint Work
Other Link： https://www.sciencedirect.com/science/article/pii/S0927025623000666?dgcid=coauthor
Review Papers 【 display / non-display 】
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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
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GOTO Koji, KITANAKA Kenta, HIROSAWA Shoichi
PLASTOS 4 ( 37 ) 8 - 12 2021.1 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Japan Society for Technology of Plasticity Joint Work
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Nano-Scale Imaging by Three-Dimensional Atom Probe
Shoichi HIROSAWA
Bunseki ( 5 ) 186 - 192 2019.5 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Japan Society for Analytical Chemistry Single Work
Other Link： http://www.jsac.or.jp/bunseki/201905.html
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Phase Diagram of Aluminum Alloys and their Application to Precipitate Phenomena
Shoichi HIROSAWA
Bulletine of The Iron and Steel Institute of Japan 24 ( 5 ) 43 - 48 2019.5 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
Other Link： https://y100.isij.or.jp/ferrum/
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車体の軽量化を実現するアルミニウム合金の自動車部材への適用
廣澤渉一
工業材料 65 ( 12 ) 26 - 30 2017.12 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：日刊工業新聞社 Single Work
Industrial Property Rights 【 display / non-display 】
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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：特願2023-190595 Date applied：2023.11.10
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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
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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
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アルミニウム合金板
廣澤渉一、越能悠貴、有賀康博、宍戸久郎、松本克史
Application no：特願2014-161441 Date applied：2014.8.7
Announcement no：特開2016-037632 Date announced：2016.3.22
Patent/Registration no：6204298 Date registered：2017.9.8 Date issued：2017.9.27
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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Elucidation of nano-precipitate strengthening mechanism in aluminum alloys by in-situ tensile-testing TEM observation and dislocation dynamics
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
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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リチウムイオン電池負極材へのアルミニウム合金の適用と充放電機構の解明
萱沼健太
第144回軽金属学会春期大会 2023.5 軽金属学会
Event date： 2023.5
Language：Japanese Presentation type：Oral presentation (general)
Venue：香川大学
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Improvement of battery performance by applying iron-containing recycled aluminum to current collector-free anode of lithium-ion batteries
Kayanuma Kenta
INPART workshop 2023.4 東京工業大学
Event date： 2023.4
Language：English Presentation type：Oral presentation (general)
Venue：東京工業大学
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高強度A7075アルミニウム合金T6板材の成形性および耐SCC性の向上と自動車部材への適用
廣澤渉一
第143回軽金属学会秋期大会 基調講演 2022.11 軽金属学会
Event date： 2022.11
Language：Japanese Presentation type：Oral presentation (keynote)
Venue：東京工業大学
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Concurrent Improvement of Strength, Formability and SCC Resistance of Al-Zn-Mg-Cu Alloy by Hot Stamping after Rapid Heating and Re-Aging on Paint Baking Treatment
S.HIROSAWA, J.KIM, T.MAENO, Y.SUZUKI, Y.YABUKI
The 18th International Conference on Aluminum Alloys(ICAA18) 2022.9
Event date： 2022.9
Language：English Presentation type：Oral presentation (general)
Venue：Toyama Country：Japan
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Improvement of Elastic Moduli and the Underlying Mechanism of Aluminum Alloys Subjected to Aging Treatments
Shoichi Hirosawa
Materials Research Meeting 2021 (MRS 2021) 2021.12
Event date： 2021.12
Language：English Presentation type：Oral presentation (general)
Venue：Yokohama
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 - 2021.3
Charge of on-campus class subject 【 display / non-display 】
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2023 Physical Metallurgy and Excersises II
College of Engineering Science
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2023 Solidification Theory
College of Engineering Science
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2023 Thermodynamics
College of Engineering Science
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2023 International Internships in Materials Engineering
Graduate school of Engineering Science
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2023 Sub-research exercise in Materials Engineering
Graduate school 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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公益社団法人日本金属学会
2022.4 - 2024.4 代議員
Committee type：Academic society
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公益社団法人 軽金属学会
2021.6 - 2025.6 理事、大会運営委員長
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 - 2024.3 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 - 2023.5 産学懇談会 委員
Committee type：Academic society
Social Contribution(Extension lecture) 【 display / non-display 】
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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
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軽金属学会シンポジウム「軽金属材料の高強度化の最前線」
Role(s)： Lecturer
軽金属学会 軽金属学会シンポジウム 2023.3
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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 2023.1
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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 R&D支援セミナー 2022.11