Comprehensive understanding of the energy change of hierarchic structural materials by the analogy of the probability resonance and its application to materials design

• Project/Area Number: 20360312
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Nagoya University
• Principal Investigator: MURATA Yoshinori Nagoya University, 工学研究科, 教授 (10144213)
• Co-Investigator(Kenkyū-buntansha): KOYAMA Toshiyuki 名古屋工業大学, 大学院・工学研究科, 教授 (80225599)
• Research Collaborator: AZUMA Tukasa (株)日本製鋼所, 室蘭研究所, 所長
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2009: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000); Fiscal Year 2008: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
• Keywords: ミクロ組織 / 耐熱鋼 / ニッケル基超合金 / フェーズフィールド法 / 階層構造 / 組織自由エネルギー / 確率共鳴 / 耐熱材料

Research Abstract

Microstructural evolution occurring suddenly in nickel based superalloys and heat resistant steels, both of which have the hierarchic structure, was investigated by the phase-field method based on system free energies of them. In this investigation, experimental measurements such as dislocation density were also employed for estimation of the system free energies in ferritic heat resistant steels having a complicated hierarchic structure. Furthermore, the lath martensite structure similar to the real one can be constructed by the phase field simulation.

Research Products

• [Journal Article] Evaluation of dislocation density and dislocation character in cold-rolled Type 304 steel determined by profile analysis of X-ray diffraction (2011)
  • Author(s): T.Shintani, Y.Murata
  • Journal Title: Acta Materialia 59 Pages: 4314-4322
  • Peer Reviewed
• [Journal Article] Evaluation of dislocation density and dislocation character in cold-rolled Type304 steel determined by profile analysis of X-ray diffraction (2011)
  • Author(s): T.Shintani, Y.Murata
  • Journal Title: Acts Materialea Volume: (未定,In press)
  • Peer Reviewed
• [Journal Article] Phase-Field Simulation of Nucleation and Growth of M23C6 Carbide and Ferromagnetic Phases during Creep Deformation in Type 304 Steel (2010)
  • Author(s): Y.Tsukada, A.Shiraki, Y.Murata, S.Takaya, T.Koyama, M.Morinaga
  • Journal Title: J.of Nuclear Materials Vol.401 Pages: 154-158
  • Peer Reviewed
• [Journal Article] Precipitation of Ferromagnetic Phase induced by Defect Energies during Creep Deformation in Type 304 Steel (2010)
  • Author(s): Y.Tsukada, A.Shiraki, Y.Murata, S.Takaya, T.Koyama, M.Morinaga
  • Journal Title: J.of Nuclear Materials Vol.401 Pages: 13-16
  • Peer Reviewed
• [Journal Article] Phase-Field Simulation of the Effect of Elastic Inhomogeneity on Microstructure Evolution in Ni-Based Superalloys (2010)
  • Author(s): Y.Tsukada, Y.Murata, T.Koyama, M.Morinaga
  • Journal Title: Materials Transactions 50 Pages: 744-748
  • NAID: 10024813378
  • Peer Reviewed
• [Journal Article] Formation of the Modulated Structure in a Steel by the Addition of a Strong Carbide Forming Element (2010)
  • Author(s): Y.Murata, T.Kita, T.Tsukamoto, Y.Tsukada, T.Koyama, M.Morinaga
  • Journal Title: Defect and Diffusion Forum 297-301 Pages: 472-476
  • Peer Reviewed
• [Journal Article] Phase-Field Simulation on on Coarsening of the γ ' Phase Particles in Ni-Based Superalloys Considering Elastic Inhomogeneity (2010)
  • Author(s): Y.Taukada, Y.Murata, T.Koyama, M.Morinaga
  • Journal Title: Defect and Diffusion Forum 297-301 Pages: 376-383
  • Peer Reviewed
• [Journal Article] Precipitation of ferromagnetic phase induced by defect energies during Creep deformation in Type304 austenitic steel (2010)
  • Author(s): Y.Tsukada, A.Shiraki, Y.Murata, S.Takaya, T.Koyama, M.Morinaga
  • Journal Title: J. of Nuclear Materials Volume: 401 Pages: 13-16
  • Peer Reviewed
• [Journal Article] Phase-field simulation of nucleation and growth of M_<23>C_6 carbide and ferromagnetic phase during creep deformation in Type304 steel (2010)
  • Author(s): Y.Tsukada, A.Shiraki, Y.Murata, S.Takaya, T.Koyama, M.Morinaga
  • Journal Title: J. of Nuclear Materials Volume: 401 Pages: 154-158
  • Peer Reviewed
• [Journal Article] Dependence of Precipitation Behavior and Creep Strength on Cr Content in High Cr Ferritic Heat Resistant Steels (2009)
  • Author(s): Y.Murata, K.Yamashita, M.Morinaga, K.Miki, T.Azuma, T.Ishiguro, R.Hashiuzme
  • Journal Title: J.of Solid Mechanics and Mater.Science Vol.3 Pages: 457-463
  • NAID: 130000106323
  • Peer Reviewed
• [Journal Article] Dependence of Precipitation Behavior and Creep Strength on Cr Content in High Cr Ferritic Heat Resistant Steels (2009)
  • Author(s): Y.Murata, K.Yamashita, M.Morinaga, T.Hara, K.Miki, T.Azuma, T.Ishiguro, R.Hashizume
  • Journal Title: J.Solid Mechanics and Materials Engineering 3 Pages: 457-463
  • NAID: 130000106323
  • Peer Reviewed
• [Journal Article] 改良9Cr-1Mo鋼の実機サイズ再熱蒸気管エルボ内圧クリープ試験と寿命評価 (2009)
  • Author(s): 藤田明吾, 齋藤健介, 宮地良和, 伊藤拓哉, 武正文夫, 野中勇, 村田純教, 森永正彦
  • Journal Title: 材料 58 Pages: 930-936
  • NAID: 130000133369
  • Peer Reviewed
• [Journal Article] Phase-Field Simulation on the Formation and Collapse Processes of the Rafted Structure in Ni-Based Superalloys (2008)
  • Author(s): Y.Tsukada, Y.Murata, T.Koyama, M.Morinaga
  • Journal Title: Materials Transactions Vol.49 Pages: 484-488
  • NAID: 10021144746
  • Peer Reviewed
• [Journal Article] Cross Interdiffusion Coefficients in Nickel-and Iron-Based Ternary Alloys (2008)
  • Author(s): Y.Murata, S.Sakurai, E.Mabruri, T.Koyama, M.Morinaga
  • Journal Title: Defect and Diffusion Forum Vols.273-276 Pages: 419-424
  • Peer Reviewed
• [Journal Article] Phase-Field Simulation on the Formation and Collapse Processes of the Rafted Structure in Ni-Based Superalloys (2008)
  • Author(s): Y. Tsukada, Y. Murata, T. Koyama, M. Morinaga
  • Journal Title: Materials Transactions 49 Pages: 484-488
  • NAID: 10021144746
  • Peer Reviewed
• [Journal Article] Interdiffusion of Refractory Elements in Fe-Cr-X (X : Mo, W) and Fe-Mo-W Ternary Iron Alloys (2008)
  • Author(s): K. Takeda, K. Yamashita, Y. Murata, T. Koyama, M. Morinaga
  • Journal Title: Materials Transactions 49 Pages: 479-483
  • NAID: 10021144735
  • Peer Reviewed
• [Journal Article] Cross Interdiffusion Coefficients in Nickel- and Iron-based Ternary Alloys (2008)
  • Author(s): Y. Murata, S. Sakurai, E. Mabruri, T. Koyama, M. Morinaga
  • Journal Title: Defect and Diffusion Forum 273-276 Pages: 414-424
  • Peer Reviewed
• [Presentation] 高Crフェライト系耐熱鋼の溶接HAZ部のミクロ組織解析 (2010)
  • Author(s): 岩田満直、杉山雄一、村田純教, 他
  • Organizer: 日本材料学会高温強度シンポジウム
  • Place of Presentation: 高知市(高知城ホール)
  • Year and Date: 2010-12-02
• [Presentation] X線回折プロファイル解析によるSUS304圧延材の転位密度・転位性状評価 (2010)
  • Author(s): 新谷剛志、村田純教
  • Organizer: 日本材料学会高温強度シンポジウム
  • Place of Presentation: 高知市(高知城ホール)
  • Year and Date: 2010-12-02
• [Presentation] 原子力用改良9Cr-1Mo鋼の溶接HAZ部の組織自由エネルギー評価 (2010)
  • Author(s): 杉山雄一、岩田満直、村田純教, 他
  • Organizer: 日本材料学会高温強度シンポジウム
  • Place of Presentation: 高知市(高知城ホール)
  • Year and Date: 2010-12-02
• [Presentation] 原子力用改良9Cr-1Mo鋼の溶接HAZ部の組織自由エネルギー評価 (2010)
  • Author(s): 杉山雄一、岩田満直、村田純教、高屋茂
  • Organizer: 日本材料学会、高温強度シンポジウム
  • Place of Presentation: 高知市高知城ホール
  • Year and Date: 2010-12-02
• [Presentation] Phase-Field Simulation of Microstructure Evolution in Ni-Based Superalloys (2010)
  • Author(s): 塚田祐貴, 村田純教, 小山敏幸, 他
  • Organizer: 9th Liege Conference on Materials for Advanced Power Eng.
  • Place of Presentation: Liege, Belgium
  • Year and Date: 2010-09-27
• [Presentation] 改良9Cr鋼の模擬i溶接熱処理材における組織自由エネルギー (2010)
  • Author(s): 杉山雄一、岩田満直、村田純教, 他
  • Organizer: 日本金属学会
  • Place of Presentation: 札幌市(北海道大学)
  • Year and Date: 2010-09-26
• [Presentation] Destabilization of the Rafted Structure during Creep in Ni-Based Superalloys Simulated by Phase-Field Method (2010)
  • Author(s): 塚田祐貴, 村田純教, 小山敏幸, 他
  • Organizer: Superalloys
  • Place of Presentation: Awaji Island, Japa
  • Year and Date: 2010-09-14
• [Presentation] Phase-Field Simulation on Phase Transformation during Creep Deformation in Type 304 Steel (2010)
  • Author(s): Y.Tsukada, A.Shiraki, Y.Murata, S.Takaya, T.Koyama
  • Organizer: 7th Pacific Rim Inter.Conf.on Advanced Materials and Processing
  • Place of Presentation: Cairns, Australia
  • Year and Date: 2010-08-06
• [Presentation] Gr.91鋼実溶接継手を用いたHAZ部の転位密度測定とミクロ組織解析 (2010)
  • Author(s): 杉山雄一、村田純教, 他
  • Organizer: 日本鉄鋼協会
  • Place of Presentation: つくば市
  • Year and Date: 2010-03-29
• [Presentation] Ni基超合金のg'相中におけるTi, NbおよびMoの拡散 (2009)
  • Author(s): 深谷容明、村田純教、森永正彦、小山敏幸, 他
  • Organizer: 日本金属学会
  • Place of Presentation: 京都市(京都大学)
  • Year and Date: 2009-09-16
• [Presentation] SUS304鋼中のM_<23>C_6炭化物および強磁性相生成の Phase-field シミュレーション (2009)
  • Author(s): 塚田祐貴, 白木厚寛, 村田純教, 森永正彦, 高屋茂, 小山敏幸
  • Organizer: 日本鉄鋼協会第158回秋季講演大会 (京都)
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-16
• [Presentation] 強炭化物形成元素添加による鉄合金の相分離 (2009)
  • Author(s): 北拓也、塚本達也、塚田祐貴, 村田純教, 他
  • Organizer: 日本金属学会
  • Place of Presentation: 京都市(京都大学)
  • Year and Date: 2009-09-15
• [Presentation] Gr. 91鋼の転位密度回復に及ぼす応力効果とクリープ強度 (2009)
  • Author(s): 斎藤良裕, 竹田広太朗, 村田純教, 森永正彦
  • Organizer: 日本金属学会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2009-03-30