Crystallographic Texture Evolution During Microstructure Refinement Processes Studied by Time-Of-Flight Neutron Diffraction

2010 Fiscal Year Final Research Report

• Project/Area Number: 21860090
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Material processing/treatments
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: XU Pingguang 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究員 (80554667)
• Project Period (FY): 2009 – 2010
• Keywords: 組織微細化 / 量子ビーム / 集合組織

Research Abstract

The effect of dual phase region deformation on the dynamic ferrite transformation was investigated by quantitatively measuring the bulk textures of in situ hot-compressed samples through using a domestic angle dispersive neutron diffractometer and an oversea time-of-flight neutron diffractometer, and the relative slow dynamic ferrite transformation in lower temperature dual phase region was found due to the occurrence of dynamic ferrite recrystallization during heterogeneous plastic deformation. The texture memory phenomenon during the step-by-step heating and cooling of a cold compressed low alloy steel sample is related to the phase strains during phase transformation rather than the deformation stored energy obtained in the initial sample.

Research Products

• [Journal Article] Establishment and Optimization of Angle Dispersive Neutron Diffraction Bulk Texture Measurement Environments (2012)
  • Author(s): P. G. Xu, K. Akita, H. Suzuki, N. Metoki, A. Moriai
  • Journal Title: Materials Transactions Volume: Vol.53, No.11,(in press)
  • Peer Reviewed
• [Journal Article] Transformation Strain and Texture Evolution during Diffusional Phase Transformation of Low Alloy Steels Studied by Neutron Diffraction (2012)
  • Author(s): P. G. Xu, Y. Tomota, S. C. Vogel, T. Suzuki, M. Yonemura, T. Kamiyama
  • Journal Title: Reviews on Advanced Materials Science Volume: Vol.33,(in press)
  • Peer Reviewed
• [Presentation] 飛行時間法中性子回折バルク集合組織評価技術の開発現状と未来 (2012)
  • Author(s): 徐平光、秋田貢一
  • Organizer: 軽金属学会第122回春期大会
  • Place of Presentation: 九州大学
  • Year and Date: 20120519-20
• [Presentation] In Situ Crystallographic Orientation Observation during Phase Transformation of Low Alloy Steels Studied by Neutron Diffraction (2012)
  • Author(s): P. G. Xu, Y. Tomota, S. C. Vogel
  • Organizer: 日本鉄鋼協会第163回春季講演大会
  • Place of Presentation: 東京:横浜国立大学
  • Year and Date: 2012-03-28
• [Presentation] Development and Prospect of Bulk Texture Measurement Technique by Neutron Diffraction (2011)
  • Author(s): P. G. Xu, H. Suzuki, S. Harjo, T. Suzuki
  • Organizer: 軽金属学会第120回春期大会
  • Place of Presentation: 名古屋大学
  • Year and Date: 20110521-22
• [Presentation] Recrystallization of Martensite and Precipitation of Austenite during In Situ Annealing of Cold Rolled 17Ni-0.2C Martensite Steel Studied by Neutron Diffraction (2011)
  • Author(s): P. G. Xu, S. Harjo, S. C. Vogel, T. Ito and Y. Tomota
  • Organizer: THERMEC' 2011 International Conference
  • Place of Presentation: Quebec, Canada
  • Year and Date: 2011-08-05
• [Presentation] 角度分散法と飛行時間法中性子回折による集合組織評価技術の比較と最適化 (2010)
  • Author(s): 徐平光、鈴木裕士、目時直人、秋田貢一、S. C Vogel、井上純哉
  • Organizer: 日本中性子科学会第10回年会
  • Place of Presentation: 仙台:東北大学
  • Year and Date: 20101207-09
• [Presentation] 動的フェライト変態した低合金鋼の組織観察と集合組織評価 (2010)
  • Author(s): 徐平光、友田陽、.武、VOGEL Sven、鈴木裕士、鈴木徹也
  • Organizer: 日本鉄鋼協会第159回春季講演大会
  • Place of Presentation: 筑波大学
  • Year and Date: 20100328-30
• [Presentation] 中性子回折による冷間圧延した17Ni-0.2C鋼焼き戻し中の再結晶と析出挙動 (2010)
  • Author(s): 徐平光、ハルヨ・ステファヌス、伊藤崇芳、李建宏、友田陽
  • Organizer: 日本中性子科学会第10回年会講演概要集
  • Year and Date: 20100000
• [Presentation] Dynamic Ferrite Transformation Behavior during Hot Deformation of Low Alloy Steels Studied by Neutron Diffraction (2010)
  • Author(s): P. G. Xu, Y. Tomota, A. Paradowska, S. C. Vogel
  • Organizer: 6th International Conference on Physical and Numerical Simulation of Materials Processing
  • Place of Presentation: Guilin, China
  • Year and Date: 2010-11-17
• [Presentation] In Situ Crystallographic Observation of Dynamic Ferrite Transformation Evolution During Hot Deformation of Low Alloy Steels (2009)
  • Author(s): P. G. Xu, Y. Tomota, M. S. Koo, M. Yonemura, T. Suzuki, A. Paradowska, S. Y. Zhang, Y. Adachi
  • Organizer: MECA SENS V International Conference
  • Place of Presentation: Mito, Japan
  • Year and Date: 20091110-12
• [Presentation] In Situ Crystallographic Observation of Dynamic Recrystallization Evolution during Warm Compression of Martensite Steels (2009)
  • Author(s): P. G. Xu, Y. Tomota, J. H. Li, E. C. Oliver, Y. Adachi
  • Organizer: MECA SENS V International Conference
  • Place of Presentation: Mito, Japan
  • Year and Date: 20091110-12
• [Presentation] その場中性子回折による低合金鋼熱間加工中の動的フェライト変態 (2009)
  • Author(s): 徐平光、友田陽
  • Organizer: 日本鉄鋼協会第158回秋季講演大会「階層的3D/4D解析によるミクロ組織の多様性の解明」シンポジウム
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-16
• [Book] Recrystallization Behavior during Warm Compression of Martensite Steels, Chapter 5 in : K. Sztwiertnia, edited, Recrystallization (2012)
  • Author(s): P. G. Xu, Y. Tomota
  • Total Pages: 87-108
  • Publisher: InTech-Open Access Company
• [Book] In Situ Neutron Diffraction during Thermo-mechanically Controlled Process for a Low Alloy Steel, Chapter 12 in : T. Kannengiesser, S. S. Babu, Y. Komizo, A. J. Ramirez, edited, In Situ Studies with Photons, Neutrons and Electrons Scattering (2010)
  • Author(s): Y. Tomota, P. G. Xu, E. C. Oliver, A. Paradowska
  • Total Pages: 175-190
  • Publisher: Springer-Verlag, Berlin Heidelberg