Small-angle scattering for characterizing nano-scale heterogeneities of light elements in steels

2011 Fiscal Year Final Research Report

• Project/Area Number: 21246103
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: National Institute for Materials Science
• Principal Investigator: OHNUMA Masato 独立行政法人物質・材料研究機構, 量子ビームユニット, 主席研究員 (90354208)
• Co-Investigator(Kenkyū-buntansha): SUZUKI Jun-ichi 原子力研究機構, J-PARCセンター, 主任研究員 (40354899) ; TSUZAKI Kaneaki 物質・材料研究機構, 元素戦略センター, センター長 (40179990) ; AKIYAMA Eiji 物質・材料研究機構, 元素戦略センター, 主幹研究員 (70231834) ; FURUSAKA Michihiro 北海道大学, 工学研究院, 教授 (60156966)
• Project Period (FY): 2009 – 2011
• Keywords: インテリジェント / 安全 / 安心材料 / 量子ビーム

Research Abstract

For suppressing hydrogen embrittlement, small-angle neutron scattering(SANS) measurements system has been optimized to get accurate and keep high reproducibility for relatively small samples for bolts. Furthermore, combined use of SANS and small-angle X-ray scattering(SAXS) has been established for getting compositional information of the embryo or clusters of carbide, oxide, nitride or other hetero-structure with light elements.

Research Products

• [Journal Article] 小角散乱法によるナノサイズ不均質の評価 (2012)
  • Author(s): 大沼正人
  • Journal Title: 表面科学 Volume: 33 Pages: 278-283
  • Peer Reviewed
• [Journal Article] Hydrogen-induced cracking at grain and twin boundaries in an Fe. Mn. C austenitic steel (2012)
  • Author(s): M. Koyama, E. Akiyama, T. Sawaguchi, D. Raabe, K. Tsuzaki
  • Journal Title: Scripta Mater Volume: 66 Pages: 459-462
  • Peer Reviewed
• [Journal Article] Hydrogen Embrittlement of a 1500-MPa Tensile Strength Level Steel with an Ultrafine Elongated Grain Structure (2012)
  • Author(s): Y. Nie, Y. Kimura, T. Inoue, F. Yin, E. Akiyama, K. Tsuzaki
  • Journal Title: Metallurgical and Materials Transactions A Volume: 43A Pages: 1670-1687
  • Peer Reviewed
• [Journal Article] Evaluation of delayed fracture property of high strength bolt steels (2012)
  • Author(s): E. Akiyama
  • Journal Title: ISIJ International Volume: 52 Pages: 307-315
  • Peer Reviewed
• [Journal Article] Quantitative Analysis of inclusions in low carbons steel using small-angle X-ray and neutron scattering (2012)
  • Author(s): Y. Oba, S. Koppoju, M. Ohnuma, Y. Kinjo, S. Morooka, Y. Tomota, J. Suzuki, D. Yamaguchi, S. Koizumi, M. Sato, T. Shiraga
  • Journal Title: ISIJ International Volume: 52 Pages: 457-463
  • Peer Reviewed
• [Journal Article] 金属組織研究への小角散乱の利用 (2011)
  • Author(s): 大沼正人
  • Journal Title: 非破壊検査 Volume: 60 Pages: 86-92
  • Peer Reviewed
• [Journal Article] Delayed Fracture of High Strength Steels under Atmospheric Corrosion (2011)
  • Author(s): E. Akiyama
  • Journal Title: Zairyo-to-Kankyo Volume: 60 Pages: 184-189
  • Peer Reviewed
• [Journal Article] Delayed Fracture of High Strength Steels under Atmospheric Corrosion (2011)
  • Author(s): E. Akiyama
  • Journal Title: Corrosion Engineering Volume: 60 Pages: 148-155
  • Peer Reviewed
• [Journal Article] Constant-load delayed fracture test of atmospherically corroded high strength steels (2011)
  • Author(s): E. Akiyama, K. Matsukado, S. Li, K. Tsuzaki
  • Journal Title: Applied Surface Science Volume: 257 Pages: 8725-8281
  • Peer Reviewed
• [Journal Article] Hydrogen entry into Fe and high strength steels under simulated atmospheric corrosion (2011)
  • Author(s): E. Akiyama, S. Li, T. Shinohara, Z. Zhang, K. Tsuzaki
  • Journal Title: Electrochimica Acta Volume: 56 Pages: 1799-1805
  • Peer Reviewed
• [Journal Article] Quantitative Analysis of Precipitates in Vanadium-microalloyed Medium Carbon Steels Using Small-angle X-ray and Neutron Scattering Methods (2011)
  • Author(s): Y. Oba, S. Koppoju, M. Ohnuma, T, Murakami, H. Hatano, K. Sasakawa, A. Kitahara, J. Suzuki
  • Journal Title: ISIJ International Volume: 51 Pages: 1852-1858
  • Peer Reviewed
• [Journal Article] Hydrogen behaviorin an Ultrafine-Grained Electrodeposited Pure Iron (2011)
  • Author(s): Y. Su, Y. Tomota, J. Suzuki, M. Ohnuma
  • Journal Title: ISIJ international Volume: 51 Pages: 1534-1538
  • Peer Reviewed
• [Journal Article] Evaluation of hydrogen entry into high strength steel under atmospheric corrosion (2010)
  • Author(s): E. Akiyama, K. Matsukado, M. Wang, K. Tsuzaki
  • Journal Title: Corros. Sci Volume: 52 Pages: 2758-2765
  • Peer Reviewed
• [Journal Article] Hydrogen embrittlement property of a 1700 MPa class ultra-high strength tempered martensitic steel (2010)
  • Author(s): S. Li, E. Akiyama, Y. Kimura, K. Tsuzaki, N. Uno, B. Zhang
  • Journal Title: Science and Technology of Advanced Materials Volume: 11 Pages: 025005
  • Peer Reviewed
• [Journal Article] Evaluation of delayed fracture property of outdoor-exposed high strength AISI 4135 steels (2010)
  • Author(s): S. Li, E. Akiyama, N. Uno, K. Hirai, K. Tsuzaki, B. Zhang
  • Journal Title: Corros. Sci Volume: 52 Pages: 3198-3204
  • Peer Reviewed
• [Journal Article] Evaluation of susceptibility of high strength steels to delayed fracture by using Cyclic Corrosion Test and SSRT (2010)
  • Author(s): S. Li, Z. Zhang, E. Akiyama, K. Tsuzaki, B. Zhang
  • Journal Title: Corros. Sci Volume: 52 Pages: 1660-1667
  • Peer Reviewed
• [Journal Article] 中性子小角散乱法による鉄鋼中ナノ析出物のサイズ評価 (2010)
  • Author(s): 安原久雄,佐藤馨,田路勇樹,大沼正人,鈴木淳市,友田陽
  • Journal Title: 鉄と鋼 Volume: 96 Pages: B15-19
  • Peer Reviewed
• [Journal Article] ProbingAr ion induced nanocavties/bubbles in silicon by small-angle x-ray scattering (2010)
  • Author(s): K. Suresh, M. Ohnuma, Y. Oba, N. Kishimoto, P. Das, T. K. Chini
  • Journal Title: J. Applied Physics Volume: 107 Pages: 073504
  • Peer Reviewed
• [Journal Article] A new method for quantitative analysis of the scale and composition of nanosized oxide in 9C-ODS steel (2009)
  • Author(s): M. Ohnuma, J. Suzuki, S. Ohtsuka, S-W. Kim, T. Kaito, M. Inoue, H. Kitazawa
  • Journal Title: Acta materialia Volume: 57 Pages: 5571-5581
  • Peer Reviewed
• [Presentation] Combined Use of Small-Angle X-Ray and Neutron Scattering : SAS in Color (2012)
  • Author(s): Ohnuma, Oba, Kozikowski, Koppoju
  • Organizer: TMS2012(アメリカ材料系3学会141回年会)
  • Place of Presentation: 合衆国(オーランド)
  • Year and Date: 20120311-15
• [Presentation] Wetting process ofβ-FeOOH with Ti by Small-angle neutron and X-ray scattering (2011)
  • Author(s): Ohnuma, Oba, Kozikowski, Wakabayashi, Sasakawa, Nakayama, Ishikawa
  • Organizer: 21st Academic Symposium of MRS-Japan 2011
  • Place of Presentation: 横浜情報文化センター
  • Year and Date: 20111219-21
• [Presentation] 中性子・X線小角散乱による鉄鋼材料の微細組織の観察 (2010)
  • Author(s): 大沼
  • Organizer: 2010年日本中性子科学会
  • Place of Presentation: 東北大学
  • Year and Date: 20101209-11
• [Presentation] 小角散乱によるゴムメタル組織のナノ不均質構造の解析/小角散乱によるゴムメタル組織のナノ不均質構造の解析 (2010)
  • Author(s): 大沼, Koppoju,大場,倉本,古田
  • Organizer: 日本金属学会秋期講演大会
  • Place of Presentation: 北海道大学
  • Year and Date: 20100925-27
• [Presentation] J-PARC中性子小中角散乱装置「大観」の開発と鉄鋼材料評価への応用 (2010)
  • Author(s): 鈴木,高田,篠原,奥,吉良,中谷,稲村,伊藤,鈴谷,相澤,新井,大友,杉山
  • Organizer: 日本鉄鋼協会秋季講演大会
  • Place of Presentation: 北海道大学
  • Year and Date: 20100925-27
• [Presentation] Microstructure and deformation behavior of an ultrafine-grained electrodeposited iron (2010)
  • Author(s): Su,友田,鈴木,大沼
  • Organizer: 日本鉄鋼協会秋季講演大会
  • Place of Presentation: 北海道大学
  • Year and Date: 20100925-27
• [Presentation] 鉄鋼材料研究への中性子小角散乱の利用 (2010)
  • Author(s): 大沼,大場, Koppoju,鈴木,友田
  • Organizer: 日本鉄鋼協会秋季講演大会
  • Place of Presentation: 北海道大学
  • Year and Date: 20100925-27
• [Presentation] X線および中性子小角散乱による材料中のへテロ構造の定量評価 (2010)
  • Author(s): 大沼
  • Organizer: 日本分析化学会第59年会
  • Place of Presentation: 東北大学
  • Year and Date: 20100914-16
• [Presentation] 大強度型パルス中性子小中角散乱装置「大観」の開発III (2010)
  • Author(s): 鈴木,高田,篠原,奥,吉良,中谷,稲村,伊藤,鈴谷,相澤,新井,大友,杉山
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-24
• [Presentation] Small-angle scattering as a tool for quantitative analysis of precipitates in steels (2009)
  • Author(s): Ohnuma, Suzuki, Oba, Koppoju
  • Organizer: SAS2009
  • Place of Presentation: オックスフォード大学(イギリス)
  • Year and Date: 20090913-18
• [Presentation] Characterization of Nano-oxide in ODS steels by alloy contrast variation method (2009)
  • Author(s): Ohnuma, Suzuki, Ohtsuka
  • Organizer: SAS2009
  • Place of Presentation: オックスフォード大学(イギリス)
  • Year and Date: 20090913-18
• [Presentation] Direct observation of Hydrogen trapped by nano-size carbide in steel (2009)
  • Author(s): Ohnuma, Suzuki, Tsuzaki, Wei
  • Organizer: SAS2009
  • Place of Presentation: オックスフォード大学(イギリス)
  • Year and Date: 20090913-18
• [Presentation] Small-angle scattering as a tool for quantitative microstructure analysis in steel research (2009)
  • Author(s): Ohnuma, Oba, Koppoju
  • Organizer: The 5th International Symposium on the Characterization of Metal
  • Place of Presentation: 韓国金属学会(Deagu)
  • Year and Date: 2009-10-22
• [Presentation] 大強度型パルス中性子小中角散乱装置「大観」の開発II (2009)
  • Author(s): 鈴木,高田,篠原,奥,吉良,鈴谷,相澤,新井,大友,杉山
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-27