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Affiliation |
Faculty of Engineering, Division of Systems Research |
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Job Title |
Professor |
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Research Fields, Keywords |
極低温特性, Microstructure of Metals and Alloys, Fracture, 疲労, Deformation |
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Mail Address |
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Related SDGs |
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UMEZAWA Osamu
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ORCID
The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 Microstructural evolution in Ti-37 mol%Nb alloy under uniaxial compression at high temperatures(Journal of Alloys and Compounds) 2021.08
【Published Thesis】 ISIJ International 2022.03
【Published Thesis】 Influence of dispersed β phase on local deformation pattern in mill-annealed Ti-Fe-O alloy under dwell fatigue loading(International Journal of Fatigue) 2021.11
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 Fracture toughness and martensitic transformation in type 316LN austenitic stainless steel extra-thick plates at 4.2 K(Materials Science and Engineering A) 2023.01
【Published Thesis】 Tribofilm properties and microcrack morphologies for a carburized SCM420 steel under high-pressure rolling sliding contact fatigue with lubricants containing high sulfur- and phosphorus- additives”(WEAR) 2022.08
【Published Thesis】 ISIJ International 2022.03
【Published Thesis】 Influence of dispersed β phase on local deformation pattern in mill-annealed Ti-Fe-O alloy under dwell fatigue loading(International Journal of Fatigue) 2021.11
【Published Thesis】 Microstructural evolution in Ti-37 mol%Nb alloy under uniaxial compression at high temperatures(Journal of Alloys and Compounds) 2021.08
Education 【 display / non-display 】
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-1986.3
Waseda University Metallurgical Engineering Graduated
Degree 【 display / non-display 】
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Doctor of Engineering - Waseda University
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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2006.4-2017.3
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Professor
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2001.11-2006.3
Duty Yokohama National UniversityFaculty of Engineering Division of Systems Research Associate Professor
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2023.4
Concurrently Yokohama National UniversityInstitute for Multidisciplinary Sciences Professor
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2019.4
Concurrently Yokohama National UniversityInstitute of Advanced Sciences Center for Creation of Symbiosis Society with Risk Professor
External Career 【 display / non-display 】
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2022.4
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2019.1-2023.12
Vysoká Škola Báňská - Technical University of Ostrava Senior researcher
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2001.4-2001.10
National Institute for Materials Science Senior Researcher
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1996.4-2001.3
National Institute for Metals, Sience and Technology Agency Senior Researcher
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1993.10-1995.3
University of Cambridge Department of Materials Science and Metallurgy Visiting Fellow
Academic Society Affiliations 【 display / non-display 】
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2008.6
日本熱処理技術協会
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2001.12
Ecomaterials Forum
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1998.7
Japan Institute for Light Metals
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1986.1
Japan Institute for Metals
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1986.1
The Iron and Steel Institute of Japan
Research Areas 【 display / non-display 】
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Nanotechnology/Materials / Structural materials and functional materials
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Nanotechnology/Materials / Material processing and microstructure control
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials
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Environmental Science/Agriculture Science / Environmental load reduction and remediation
Research Career 【 display / non-display 】
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Deformation and Fracture of Steels
Project Year：
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Deformation and Farcture of Titanium Alloys
Grant-in-Aid for Scientific Research
Project Year：
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Process and Materials Design in alloys
The Other Research Programs
Project Year：
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表面硬化部材の疲労き裂形成
Project Year：
Books 【 display / non-display 】
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金属組織観察のための検鏡試料の作り方
梅澤修（ Role： Supervisor (editorial)）
大河出版 （ ISBN:978-4-88661-818-4 ）
Language：Japanese Book type：Scholarly book
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Handbook of Ecomaterials
Yoshikazu Shinohara and Osamu Umezawa（ Role： Contributor）
Springer International Publishing （ ISBN:978-3-319-68254-9 ）
Responsible for pages：961-966 Language：English Book type：Scholarly book
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Handbook of Ecomaterials
Osamu Umezawa, Yoshikazu Shinohara, and Kohmei Halada（ Role： Contributor）
Springer International Publishing （ ISBN:978-3-319-68255-6 ）
Responsible for pages：2261-2280 Language：English Book type：Scholarly book
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Standard Microstructures Group 1: Carbon steel & cast irons
Materials Technology Education Association（ Role： Supervisor (editorial)）
Yamamoto Scientific Tool Laboratory
Language：English Book type：Scholarly book
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改訂版 金属組織の現出と試料作製の基本
材料技術教育研究会 (編集) （ Role： Contributor , 全編の編集と校正、および11章のEBSD分析および三次元化に必要な試料調整ついて解説した。）
大河出版 （ ISBN:9784886618177 ）
Total pages：303 Language：Japanese Book type：Scholarly book
編集代表者として全体の取りまとめと、11章「機器分析用研磨面作成の留意点」の11.4節「SEM-EBSD解析のための試料作製について」と11.5節「シリアルセクショニング法による三次元画像再構築」pp.285-290を分担執筆した。
Thesis for a degree 【 display / non-display 】
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高強度非磁性金属材料の極低温高サイクル疲労破壊の研究
梅澤 修
1992.10
Doctoral Thesis Single Work [Reviewed]
早稲田大学大学院理工学研究科 第1835号, 文部省 乙第901号
高強度非磁性金属材料であるチタン合金とオーステナイト鋼の高サイクル疲労をはじめとした極低温特性を評価するとともに、極低温高サイクル疲労破壊において顕在化する内部き裂発生に着目し、電子顕微鏡を用いて転位組織の発達と微小き裂および破面形成過程を詳細に解析し、高強度材料における不均一変形と組織依存によるき裂形成の基本的なモデルを提示した。
Papers 【 display / non-display 】
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High-strength and high-toughness austenitic stainless steels based on type 316LN at 4.2 K
Takeru Sakurai, Osamu Umezawa,
Cryogenics 136 103762 2023.12 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Strength and fracture toughness of type 304 and 316 austenitic stainless steels at 4.2 K
Takeru Sakurai, Osamu Umezawa, Yoshinori Ono
IOP Conference Series: Materials Science and Engineering 1294 2023.12 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Single Work
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Effects of dislocation arrangement and character on the work hardening of lath martensitic steels
Hiroyuki Dannoshita, Hiroshi Hasegawa, Sho Higuchi, Hiroshi Matsuda, Wu Gong, Takuro Kawasaki, Stef … Show more authors
Hiroyuki Dannoshita, Hiroshi Hasegawa, Sho Higuchi, Hiroshi Matsuda, Wu Gong, Takuro Kawasaki, Stefanus Harjo, Osamu Umezawa Hide authors
Scripta Materialia 236 115648 2023.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Koga Norimitsu, Koizumi Kouki, Takayasu Shuto, Umezawa Osamu, Watanabe Mizuki, Yamamoto Masayuki, Y … Show more authors
Koga Norimitsu, Koizumi Kouki, Takayasu Shuto, Umezawa Osamu, Watanabe Mizuki, Yamamoto Masayuki, Yamamoto Takashi Hide authors
MATERIALS TRANSACTIONS 64 ( 7 ) 1600 - 1604 2023.7 [Reviewed]
DOI Web of Science CiNii Research
Language：English Publishing type：Research paper (scientific journal) Publisher：公益社団法人 日本金属学会 Joint Work
<p>The temperature dependence of hardness in hypereutectoid steels with various microstructures was measured by using the small ball rebound hardness test, and the effect of carbon state on the high-temperature hardness was discussed. As-received and spheroidized cementite steels consisted of spheroidized cementite, graphite and ferrite matrix, and the volume fraction of graphite in the spheroidized cementite steel was larger than that in the as-received steel. Pearlite steel had ferrite and cementite lamellar structure without graphite. The characteristic hardening was detected above 700 K in all steels, suggesting that the solid solute carbon enhances the hardness even in hypereutectoid steels with high strength. The pearlite steel exhibited the highest hardness owing to the ferrite and cementite lamellar structure and no graphite. While the spheroidized cementite steel exhibited the lowest hardness, although the size of cementite was finer than that in the as-received steel. It was quantitatively demonstrated that the large volume fraction of graphite caused the low hardness in the spheroidized cementite steel.</p>
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Fracture toughness and martensitic transformation in type 316LN austenitic stainless steel extra-thick plates at 4.2 K
Takeru Sakurai, Osamu Umezawa
Materials Science and Engineering A 862 144122 2023.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
Review Papers 【 display / non-display 】
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ひずみ不整に起因する内部疲労き裂形成と組織学的要因
梅澤 修
熱処理 62 ( 5 ) 217 - 223 2022.10 [Reviewed] [Invited]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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高強度合金における高サイクル疲労き裂の形成とひずみ不整合との関わり
梅澤修
山陽特殊製鋼技報 28 ( 1 ) 3 - 12 2021.6 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Single Work
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Review of the mechanical properties of high-strength alloys at cryogenic temperatures
Osamu Umezawa
Materials Performance and Characterization 10 ( 2 ) 3 - 15 2021.3 [Reviewed] [Invited]
Authorship：Lead author, Corresponding author Language：English Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Microstructure and Phase Transformation in Heat Treatment of Steels
UMEZAWA Osamu
PLASTOS 4 ( 38 ) 65 - 69 2021.2 [Reviewed] [Invited]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Japan Society for Technology of Plasticity Single Work
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鉄鋼材料の熱処理で出現する組織：その歴史を振り返る
梅澤 修, 守谷英明
熱処理 58 ( 6 ) 294 - 300 2018.12 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Joint Work
Industrial Property Rights 【 display / non-display 】
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チタン合金およびチタンからなる基体とその表面処理方法
梅澤 修
Applicant：横浜国立大学
Application no：2011-215240 Date applied：2011.9.29
Country of applicant：Domestic
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鋳物用アルミニウム合金
大澤嘉昭，高森 晋，皆川和己，垣澤英樹，梅澤 修，原田幸明
Applicant：物質・材料研究機構
Application no：2007-058303 Date applied：2007.3.8
Patent/Registration no：4551995 Date issued：2010.7.23
Country of applicant：Domestic
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Al-Si系合金の製法
梅澤 修
Applicant：よこはまティエルオー
Application no：2003-378043 Date applied：2003.11.7
Patent/Registration no：4103959 Date issued：2008.4.4
Country of applicant：Domestic
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アルミニウム系鋳造合金の凝固結晶組織を制御する方法
大澤嘉昭，高森 晋，皆川和己，垣澤英樹，梅澤 修，原田幸明
Applicant：物質・材料研究機構
Application no：2002-379104 Date applied：2002.12.27
Country of applicant：Domestic
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高燐鋼板製造装置及び高燐鋼板製造方法
中嶋 宏，高谷英明，梅澤 修，平田耕一
Applicant：三菱重工業
Application no：2001-280468 Date applied：2001.9.14
Patent/Registration no：3549000 Date issued：2004.4.30
Country of applicant：Domestic
Awards 【 display / non-display 】
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日本金属学会 論文賞
2023.9 日本金属学会 Preferential dynamic grain growth mechanism enabling the control of microstructure and texture by high temperature deformation: experimental evidence and applicability
Individual or group name of awards：福富洋志, 岡安和人, 小貫祐介, 長谷川誠, 小林郁夫, Bohumir Strnadel, 梅澤修
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International Science and Technology Awards 2022
2022.11 International Society for Science Network
Individual or group name of awards：Osamu Umezawa
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IAAM Scientist Medal
2022.10 Advanced Materials World Congress
Individual or group name of awards：Osamu Umezawa
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学術功績賞（林賞）
2020.6 一般社団法人 日本熱処理技術協会 ひずみ不整に起因するき裂形成機構と組織学的要因との関係解明
Individual or group name of awards：梅澤 修
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High Quality Paper Award
2019.11 The 25th Small Engine Technology Conference (SETC2019) Influence of Surface Compound Layer on Fatigue Strength of Nitrided Chromium Molybdenum Steel
Individual or group name of awards：Tsuyoshi Kubota, Osamu Umezawa
Grant-in-Aid for Scientific Research 【 display / non-display 】
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極低温用構造材料厚肉材の高強度化と耐き裂形成に優れる金属組織制御法の開発
2021.4 - 2024.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Grant type：Competitive
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転位の集団運動とひずみ不整合に着目した内部疲労き裂形成の解明
2016.4 - 2019.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Investigator(s)：梅澤 修
Grant type：Competitive
Other external funds procured 【 display / non-display 】
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極限環境対応構造材料研究拠点
2022.10 - 2031.3
Ministry of Education, Culture, Sports, Science and Technology データ創出・活用型 マテリアル研究開発プロジェクト
Authorship：Coinvestigator(s)
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水素ガスを使った加圧ガス冷却式真空浸炭炉の開発
2021.10 - 2024.3
Ministry of Economy, Trade and Industry 令和3年度戦略的基盤技術高度化支援事業
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破壊に強い延性二相チタン合金の組織設計原理の確立
2020.4 - 2023.3
Private Foundations 研究プロジェクト
Authorship：Coinvestigator(s)
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鋼中炭素の存在状態評価と微小球反発硬さ試験法の適用開発
2019.4 - 2020.3
Private Foundations 単年度研究助成
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原型炉超伝導TFコイルに向けた極低温用構造材料の高強度化に関する研究開発
2018.11 - 2020.3
Other Ministries 委託研究
Investigator(s)：梅澤 修
Presentations 【 display / non-display 】
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A Subsurface fatigue crack generation model in near alpha titanium at low temperature
Osamu Umezawa, Weibo Li
Thermec 2018
Event date： 2018.7
Language：English Presentation type：Oral presentation (general)
Venue： Paris
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Growth of ecomaterials and eco-efficiency in major metallic structural materials
Osamu Umezawa, Yoshikazu Shinohara, Kohmei Halada
13th International Conference on Ecomaterials 2017 (ICEM13)
Event date： 2017.11
Language：English Presentation type：Oral presentation (invited, special)
Venue：Bangkok, Thailand
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グリーンモノづくりの課題とアジアの役割
第11回エコマテリアル国際会議プレシンポジウム—日本発のモノづくり：東南アジア（ベトナム）展開への期待—
Event date： 2013.3
Language：The in addition, foreign language Presentation type：Oral presentation (invited, special)
Venue：東京
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Subsurface Crack Generation Under Rolling Contact Fatigue in Steels
The First Symposium on Ecomaterials and Processing Technology
Event date： 2012.10
Language：The in addition, foreign language Presentation type：Oral presentation (invited, special)
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Crack Growth Modeling Under Rolling Contact Fatigue
Event date： 2012.9
Language：The in addition, foreign language Presentation type：Oral presentation (general)
Preferred joint research theme 【 display / non-display 】
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多結晶金属の不均一変形とき裂発生モデリング
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不均一変形材料の疲労破壊
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軽量・難加工金属の高付加価値化成形
Past of Collaboration and Commissioned Research 【 display / non-display 】
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破壊に強い延性二相チタン合金の組織設計原理の確立
Offer organization: 日本鉄鋼協会 Cooperative Research within Japan
Project Year： 2020.4 - 2023.3
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表面硬化部材の疲労損傷研究部会
Cooperative Research within Japan
Project Year： 2019.4 - 2022.3
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表面硬化部材の疲労損傷研究部会
Cooperative Research within Japan
Project Year： 2017.3 - 2019.3
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鉄鋼のミクロ組織要素と特性の量子線解析研究会
Offer organization: 日本鉄鋼協会 Others
Project Year： 2017.2 - 2020.1
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社会技術イノベーションのための材料技術研究の推進−YNU研究教育総合連携方式の開発−
Cooperative Research within an affiliated university or institute
Project Year： 2011.4 - 2016.3
Charge of on-campus class subject 【 display / non-display 】
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2023 Steel: microstructure and metallurgy
College of Engineering Science
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2023 Materials Design Seminor
College of Engineering Science
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2023 Crystal Plasticity
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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材料学特論II
Institution：東海大学
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基礎結晶科学
Institution：横浜市立大学
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材料設計と評価技術の最前線
Institution：東京工業大学
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金属工学特別講義第一
Institution：東京工業大学
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鉄と鋼の材料技術
Institution：放送大学
Committee Memberships 【 display / non-display 】
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Net Zero Initiative Scientific Advisory Board
2023.4
Committee type：Other
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International Scientific Board
2023.1
Committee type：Other
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神奈川工業技術開発大賞選考委員会
2022.4 委員
Committee type：Municipal
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液化水素関連材料評価基盤の整備運営委員会
2022.4 委員長
Committee type：Government
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日本熱処理技術協会
2021.6 - 2022.6 副会長
Committee type：Academic society
Social Contribution(Extension lecture) 【 display / non-display 】
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28th IFHTSE Congress
2023.11
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15th International Conference on Ecomaterials
2022.11
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9th New Methods of Damage and Failure Analysis of Structural Parts
2022.9
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2022.3
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2021.3