All Stories

  1. Neutron diffraction analysis of dislocation behaviour and substructures of Si-alloyed and interstitial-free BCC steels

    Article • ISIJ International, January 2026, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  2. Effects of Cooling Rate During Solid Solution Treatment on Precipitation Behavior and Hardness in Ni–38Cr–3.8Al Alloys

    Article • Metallurgical and Materials Transactions A, April 2025, Springer Science + Business Media

    Masayoshi Kumagai

  3. 大きな磁歪を示す鉄合金を搭載したデバイスの振動におけるひずみや磁界の変化

    Article • Tetsu-to-Hagane, January 2024, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  4. Effect of work-hardening on the relationship between compressive strength and hardness of quenched medium carbon steel

    Article • Transactions of the JSME (in Japanese), January 2024, Japan Society of Mechanical Engineers

    Masayoshi Kumagai

  5. Characterization of Dislocation Structure by Line Profile Analysis Using X-rays and Neutrons

    Article • Materia Japan, January 2023, Japan Institute of Metals

    Masayoshi Kumagai

  6. Structure restoration and coarsening of nanocrystalline cementite in cold drawn pearlitic wire induced by low temperature annealing

    Article • Scripta Materialia, July 2022, Elsevier

    Masayoshi Kumagai

  7. In situ neutron diffraction analysis of microstructural evolution-dependent stress response in austenitic stainless steel under cyclic plastic deformation

    Article • Materials & Design, July 2022, Elsevier

    Masayoshi Kumagai

  8. A modified pearlite microstructure to overcome the strength-plasticity trade-off of heavily drawn pearlitic wire

    Article • Scripta Materialia, January 2022, Elsevier

    Masayoshi Kumagai

  9. Impact of Dislocation Density and Mobility on Yielding Behavior in Quenched Medium-carbon Martensitic Steel Tempered at Low Temperature

    Article • ISIJ International, January 2022, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  10. In situ diffraction characterization on microstructure evolution in austenitic stainless steel during cyclic plastic deformation and its relation to the mechanical response

    Article • Materials Science and Engineering A, July 2021, Elsevier

    Masayoshi Kumagai

  11. Depth-profiling of residual stress and microstructure for austenitic stainless steel surface treated by cavitation, shot and laser peening

    Article • Materials Science and Engineering A, May 2021, Elsevier

    Masayoshi Kumagai, Professor Philip J Withers

  12. Variation of tensile strength and elastic limit due to tempering at low temperature on quenched medium carbon steel

    Article • Transactions of the JSME (in Japanese), January 2021, Japan Society of Mechanical Engineers

    Masayoshi Kumagai

  13. Inhomogeneous strain and recrystallisation of a shot-peened Inconel 625 alloy after annealing

    Article • Materials Science and Technology, August 2019, Taylor & Francis

    Masayoshi Kumagai

  14. Tuning strain-induced γ-to-ε martensitic transformation of biomedical Co–Cr–Mo alloys by introducing parent phase lattice defects

    Article • Journal of the Mechanical Behavior of Biomedical Materials, February 2019, Elsevier

    Masayoshi Kumagai

  15. Evaluation of Microstructural Characteristics in Low-Cycle Fatigued Austenitic Stainless Steel Using X-Ray Line Profile Analysis

    Article • Materials Science Forum, December 2018, Trans Tech Publications

    Masayoshi Kumagai

  16. Report of THERMEC’2018

    Article • Journal of the Society of Materials Science Japan, September 2018, Society of Materials Science, Japan

    Masayoshi Kumagai

  17. X-rays, Laser, X-rays again

    Article • Journal of the Society of Materials Science Japan, August 2018, Society of Materials Science, Japan

    Masayoshi Kumagai

  18. Determination Approach of Dislocation Density and Crystallite Size Using a Convolutional Multiple Whole Profile Software

    Article • MATERIALS TRANSACTIONS, July 2018, Japan Institute of Metals

    Masayoshi Kumagai

  19. In-situ Observation of Dislocation Evolution in Ferritic and Austenitic Stainless Steels under Tensile Deformation by Using Neutron Diffraction

    Article • Tetsu-to-Hagane, January 2018, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  20. Development of On-site Measurement Technique of Retained Austenite Volume Fraction by Compact Neutron Source RANS

    Article • Tetsu-to-Hagane, January 2018, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  21. Microscopic Residual Stress Distribution Measurement on the Single Dent Surface Assuming Shot Peening

    Article • Journal of the Society of Materials Science Japan, January 2018, Society of Materials Science, Japan

    Masayoshi Kumagai

  22. Residual stress variation due to shot peening and thermal ageing on welded Ni-alloy pipe

    Article • Transactions of the JSME (in Japanese), January 2018, Japan Society of Mechanical Engineers

    Masayoshi Kumagai

  23. Prospect for application of compact accelerator-based neutron source to neutron engineering diffraction

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, October 2016, Elsevier

    Masayoshi Kumagai

  24. Non-destructive Texture Measurement of Steel Sheets with Compact Neutron Source “RANS”

    Article • Journal of Physics Conference Series, August 2016, Institute of Physics Publishing

    Masayoshi Kumagai

  25. Texture evaluation in ductile fracture process by neutron diffraction measurement

    Article • Journal of Physics Conference Series, August 2016, Institute of Physics Publishing

    Masayoshi Kumagai

  26. Strengthening of biomedical Ni-free Co–Cr–Mo alloy by multipass “low-strain-per-pass” thermomechanical processing

    Article • Acta Biomaterialia, December 2015, Elsevier

    Masayoshi Kumagai

  27. Distribution and Anisotropy of Dislocations in Cold-drawn Pearlitic Steel Wires Analyzed Using Micro-beam X-ray Diffraction

    Article • ISIJ International, January 2015, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  28. Residual Stress Analysis of Cold-drawn Pearlite Steel Wire Using White Synchrotron Radiation

    Article • ISIJ International, January 2015, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  29. X-Ray Line Profile Study on Shot/Laser-Peened Stainless Steel

    Article • Advanced Materials Research, August 2014, Trans Tech Publications

    Masayoshi Kumagai

  30. Workhardening and the microstructural characteristics of shot- and laser-peened austenitic stainless steel

    Article • Materials Science and Engineering A, July 2014, Elsevier

    Masayoshi Kumagai

  31. Microstructural Features of Cold-Rolled Carbon Steel Evaluated by X-ray Diffraction Line Profile Analysis and Their Correlation with Mechanical Properties

    Article • ISIJ International, January 2014, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  32. X-ray diffraction study on microstructures of shot/laser-peened AISI316 stainless steel

    Article • Journal of Nuclear Materials, November 2013, Elsevier

    Masayoshi Kumagai

  33. Relationship between dislocations and residual stresses in cold-drawn pearlitic steel analyzed by energy-dispersive X-ray diffraction

    Article • Materials Characterization, September 2013, Elsevier

    Masayoshi Kumagai

  34. Evaluation of Microstructures and Mechanical Properties of Steel with Tensile Loading Process Using X-Ray Line Profile Analysis

    Article • Tetsu-to-Hagane, January 2013, Iron and Steel Institute of Japan

    Masayoshi Kumagai

  35. Analysis of Crack Propagation in Stealth Dicing Using Stress Intensity Factor(M & M 2009 Conference)

    Article • TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, January 2010, Japan Society of Mechanical Engineers

    Masayoshi Kumagai

  36. Analysis of Processing Mechanism in Stealth Dicing of Ultra Thin Silicon Wafer

    Article • Journal of Advanced Mechanical Design Systems and Manufacturing, January 2008, Japan Society of Mechanical Engineers

    Masayoshi Kumagai

  37. Internal Modification of Ultra Thin Silicon Wafer by Permeable Pulse Laser

    Article • Journal of the Japan Society for Precision Engineering, January 2008, Japan Society for Precision Engineering

    Masayoshi Kumagai

  38. Advanced Dicing Technology for Semiconductor Wafer—Stealth Dicing

    Article • IEEE Transactions on Semiconductor Manufacturing, January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Masayoshi Kumagai

  39. Laser processing of doped silicon wafer by the Stealth Dicing

    Article • January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Masayoshi Kumagai

  40. Advanced dicing technology for semiconductor wafer -Stealth Dicing

    Article • September 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Masayoshi Kumagai