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2003 Fiscal Year Final Research Report Summary

Development of high precision measurement system of residual stress in engineering materials by time-of-flight neutron method

Research Project

Project/Area Number 13555024
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Materials/Mechanics of materials
Research InstitutionNagoya University

Principal Investigator

AKINIWA Yoshiaki  Nagoya Univ., Grad.School of Eng., Assoc.Professor, 工学研究科, 助教授 (00212431)

Co-Investigator(Kenkyū-buntansha) MORII Yukio  Japan Atomic Energy Research Institute, Advanced Science research center, resercher, 先端基礎研究センター, 研究員
KAMIYAMA Takashi  High Energy Accelerator Research Organization, Assoc.Professor, 物質構造科学研究, 助教授 (60194982)
TANAKA Keisuke  Nagoya Univ., Grad.School of Eng., Professor, 工学研究科, 教授 (80026244)
KIMURA Hidehiko  Nagoya Univ., Grad.School of Eng., Assistant Professor, 工学研究科, 助手 (60345923)
HAYASHI Makoto  Hitachi Co. Ltd., Mechanical Engineering Research Laboratory, researcher, 機械研究所, 研究員
Project Period (FY) 2001 – 2003
KeywordsResidual stress / Neutron / Phase stress / Time-of-flight / Angle dispersion method / Diffraction elastic constant
Research Abstract

Tensile testing machine was installed at the Sirius in the High Energy Accelerator Research Organization (KEK). By using the tensile testing machine, in-situ strain measurement can be carried out during tensile loading. The methods of stress measurement for single crystals and multi-phase polycrystalline materials were proposed. The effect of porosity on the elastic constants was investigated by the proposed method. Evaluation method of elastic constant of single crystals on the basis of a number of diffraction constants measured with poly-crystals was proposed. Further more, a simplified method to predict the diffraction elastic constant for arbitrary diffraction plane by using the elastic constant of single crystals was proposed. For the engineering materials, residual stress and loading stress of quenched steels, metal matrix composites, ceramics matrix composites and shape memory alloys were measured. For the composites, the loading stress and the residual stress can be evaluated by the micro mechanics models by considering that the one of the constituent phase is inclusion. To determine the lattice strain with sufficient accuracy, the diffraction intensity must be larger than 300 counts. The lattice strain can be evaluated by a single peak analysis and the Rietveld analysis by using full diffraction patterns.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Yoshiaki Akiniwa: "Thermal residual stresses in ceramic composites measured by neutron diffraction"Material Science Research International. STP. 427-430 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Makoto Hayashi: "Measurement of residual stress in structural components by neutron diffraction"Material Science Research International. STP. 418-423 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Keisuke Tanaka: "Neutron diffraction measurements of residual stresses in engineering materials and components"Material Science Research International. Vol.8, No.4. 165-174 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki Akiniwa: "Phase stress measurement in SiCp/2024 under axial loading by TOF"Proceedings of Advanced Technology in Experimental Mechanics 2003. GSW0403 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Keisuke Tanaka: "Diffraction measurement of residual micro and macro stresses"Proceedings of Advanced Technology in Experimental Mechanics 2003. PL3W0400 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshiaki Akiniwa: "Thermal residual stresses in ceramic composites measured by neutron diffraction"Material Science Research International, STP. 427-430 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Tanaka: "Neutron diffraction measurements of loading and residual stresses"Material Science Research International, STP. 412-417 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Makoto Hayashi: "Measurement of residual stress in structural components by neutron"Material Science Research International, STP. 418-423 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Keisuke Tanaka: "Neutron diffraction measurements of residual stresses in engineering materials and components"Materials Science Research International. 8. 165-174 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kimura: "Fatigue Crack Propagation Behavior in TiNi Shape-Memory Alloys"Proceeding of The 14th Symposium of The Materials Research Society of Japan. 108-108 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshiaki Akiniwa: "Phase stress measurement in SiCp/2024 under axial loading by TOF"Proceedings of Advanced Technology in Experimental Mechanics 2003. GSW0403. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Keisuke Tanaka: "Diffraction measurement of residual micro and macro stresses"Proceedings of Advanced Technology in Experimental Mechanics. PL3W0400. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hidehiko Kimura: "Fatigue crack propagation and stress-induced martensitic transformation behavior in TiNi"Proceedings of Advanced Technology in Experimental Mechanics. G5W0439. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yukio Morii: "Residual stress measurement of the quenching material by the neutron diffraction"Proceedings of Advanced Technology in Experimental Mechanics. OS04W0258. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takashi Kamiyama: "Neutron diffraction study of thermal residual strain in three layered materials made by self-propagating high temperature synthesis"Materials Science Research International. 9. 81-86 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takashi Kamiyama: "Neutron diffraction study of residual stress in the induction hardenedS45C round bar"Proceedings of Advanced Technology in Experimental Mechanics. OS04W0182. (2003)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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