Doctor of Engineering(Kyushu University)1984.3, 九州大学, Mar. 1984
Research Achievements
Field of Study
Strength of Materials
Research Title
Estimation of the fatigue strength on the structural materials, The clarification of fatigue mechanism for various metals is made through the analisis of experimantal results. The statistical analisis of fatigue data is performed for estimation of fatigue strength and fatigue life.
Microstructure and strength of nano-grained copper, Formation of ultrafine grains by ECAP process is studied. Fatigue tests of ultrafine grained metals are performed to clarify the fatigue mechanism. Relation between the microstructure and fatigue strength is investigated
Papers
2004, 材料(日本材料学会論文集), 2004
2004, Steel, 2004
2004, Fatigue Damage of Ultrafine Gained Copper, 材料(日本材料学会論文集), 2004
2004, Proc. 18th Conference on Mech. Behavior of Materials, 2004
2004, Proc. 3 rd Inter. Conference on Very High Cycle Fatigue, 2004
2004, Scripta Materialia, 2005
2004, Ultrasonic Fatigue Properties of an Age-Hardened Al Alloy 6061-T6, 日本機械学会論文集 A編, 2004
2004, Fracture, 2004
2005, Fracture Mechanism in Fatigue of Ni-Base Superalloy Inconel 718 at Elevated Tempertures, 日本機械学会論文集(A編), 2005
2005, Proc. 12th Int. Sympo. Metastable, 2005
2005, Advances in Fracture and Damage Mechanics IV, 2005
2005, Journal of Materials Science, 2005
2005, Surface Damage of Ultrafine grain Copper in High-Cycle Fatigue Regime, 材料(日本材料学会論文集), 2006
2006, Fatigue damge of UFG copper processed by ECAP, Proceedings of UFG-2006, 2006
2006, Mechanical properties and fatigue charasteristics of ultrafine grained coppers with different numbers of ECAP process cycles, 日本機械学会論文集 A編, 2006
2006, Fatigue properties of IN718 at elevated temperature, Proc. of 16th European Conference of Fracture (CD-R), 2006
2006, Propagation behavior of a fatigue crack in fine-grained steel, Proceedings of UFG-2006, 2006
2006, Effect of water on ductility and fatigue strength of austempered ductile cast iron (ADI), International Journal of Modern Physics B, 2006
2006, Fatigue Damage of Ultrafine Grain Oxigen-Free Copper, International Journal of Modern Physics B, 2006
2006, Effect of frequency on fatigue strength of Ni-based super alloy, 日本機械学会論文集 A編, 2006
2006, Crack growth behavior of Al alloy 7075-T6 under ultrasonic fatigue, 日本機械学会論文集 A編, 2006
2006, Formation process of shear bands and protrusions in ultrafine grained copper under cyclic stresses, Scripta Materialia, 2006
2006, Tensile behavior of commercial copper and copper alloys processed by accumulative roll-bonding (ARB), J. Kor. Inst. Mat., 2006
2007, Scripta Materialia, 2007
2007, Fatigue behavior of nano-grained copper prepared by ECAP, J. Alloys, 2007
2007, Effect of Zr addition on the fatigue strength of Cu-6Ni-2Mn-2Sn-2Al alloy, WIT Transactions on Modeling, 2007
2007, Influence of grain size on fatigue properties in carbon steel, Proc. Inter. Conf. Advanced Tech. Experimental Mech. (JSME), 2007
2007, Fatigue strength and formation of surface damage in ultrafine grained copper, Proc. Inter. Conf. Advanced Tech. Experimental Mech. (JSME), 2007
2007, Tensile properties and fatigue strength of ultrafine grained pure copper, Key Eng. Mater., 2007
2007, Fracture mechanism in high cycle fatigue of Inconel 718 at elevated temperatures, Proc. 4th Inter. Conf. of VHCF, 2007
2008, Metals and Materials International, 2008
2008, Effect of trace zirconium on the initiation and propagation behavior of fatigue cracks in Cu-6Ni-2Mn-2Sn-2Al alloy, Materials Letters, 2008
2008, Fatigue strength and formation behavior of surface damage in ultrafine grained copper with different non-equilibrium microstructures, International Journal of Fatigue, 2008
2008, Effect of aging condition on fatigue properties of Ni-base super alloy Inconel 718 at room temperature, 日本機械学会論文集, 2008
2008, Effect of grain size on ultrasonic fatigue properties of Ni-base super alloy Inconel 718, 日本機械学会論文集, 2008
2008, Effect of 160C annealing on the fatigue damage and small crack behavior of ultrafine grained copper, 日本機械学会論文集, 2008
2008, Effect of trace impurities on high-cycle fatigue damage of ultrafine grained copper processed by equal channel angular pressing, J. Mater. Sci. Forum, 2008
2008, Crack growth behavior of Al alloy 7075-T6 under ultrasonic fatigue, Journal of Solid Mechanics and Materials Engineering, 2008
2009, Growth behavior of surface cracks in coarse and ultrafine grained copper, Transactions on Modeling, 2009
2009, Effects of thermo-mechanical processing and trace amount of carbon addition on tensile properties of Cu-2.5Fe-0.1P alloys, Materials Science and Engineering (Elsevier), 2009
2009, Fatigue damage in nano-size grained oxygen free copper, Reviews on Advanced Materials Science, 2009
2009, Effect of loading type on S-N fatigue behavior of SPRC340 steel sheet, Metals and Materials International (Springer), 2009
2009, Growth mechanism of a small surface crack of ultrafine-grained copper in a high-cycle fatigue regime, Scripta Materialia (Elsevier), 2009
2009, Effect of humidity on fatigue strength of shot peened maraging steel, Transactions on Engineering Science (WIT), 2009
2009, Fatigue damage generation in ECAPed oxygen free copper, Journal of Alloys and Compounds (Elsevier), 2009
2009, Growth path of small surface-cracks in ultrafine grained copper under cyclic loading, Proceedings of 9th Inter. Conference on Crack Paths, 2009
2009, Influence of grain size on fatigue crack growth resistance of Alloy 718 at elevated temperature, 日本機械学会論文集 A編, 2009
2009, Fatigue strength and surface damage of copper processed by twelve passages of equal channel angular pressing, Proc. Asia Pacific Conference for Materials and Mechanics 2009, 2009
2009, Fatigue crack initiation in alloy 718 at elevated temperature, 材料(日本材料学会), 2009
2010, The effect of microstructural inhomogeneity on the growth paths of surface-cracks in copper processed by equal channel angular pressing, Engineering Fracture Mechanics, 2010
2010, Formation of high-cycle fatigue fracture surface and crack growth mechanism of ultrafine grained copper with different stages of microstructural evolution, Acta Materialia, 2010
2010, Fatigue damage formation process of ultrafine grained oxygen-free copper and deoxidized phosphorous copper, International Journal of Modern Physics B, 2010
2010, Crack growth behavior and fatigue fracture surface in ultrafine grained copper plain specimens, 日本機械学会論文集A編, 2010
2010, Propagation of shear mode crack in age-hardened and extruded Al alloy under ultrasonic loading, 日本機械学会論文集A編, 2010
2010, Effect of humidity on fatigue strength of age-hardened Al alloy under ultrasonic loading, 日本機械学会論文集A編, 2010
2010, Initiation and propagation behavior of a fatigue crack of allot 718, International Journal of Modern Physics B, 2010
2010, The relationship between shear bands and crack growth behavior in ultrafine grained copper processed by severe plastic deformation, Key Engineering Materials, 2010
2010, Fatigue strength of age hardened, 日本機械学会論文集A編, 2010
2010, Growth behavior of a small crack in ultrafine grained copper processed by twelve passages of equal channel angular pressing, Proceedings of 18 th European Conference on Fracture, 2010
2010, Fatigue Strength of Ultrafine Grained Copper Treated by Post-ECAP Mild Annealing, Proceedings of International Conference on Structural Integrity, 2010
2011, Journal of Materials Science, 2012
2011, Advanced Materials Research, 2011
2011, Transactions of Modeling and Simulation (WIT), 2011
2011, Transactions of Engineering Sciences (WIT), 2011
2011, Growth mechanism of shear mode fatigue crack of age-hardened Al alloy, 材料, 2011
2011, Proceedings of 5th International Conference on Very High Cycle Fatigue., 2011
2011, Key Engineering Materials, 2011
2011, Proceedins of AMDP 2011, 2011
2011, Proceedings of AMDP 2011, 2011
2012, Scripta Materialia, 2012
2012, Transactions of The Built Environment (WIT), 2012
2012, International Journal of Modern Physics - C, 2012
2012, International Journal of Modern Physics - C, 2012
2012, International Journal of Modern Physics - C, 2012
2012, International Journal of Modern Physics - C, 2012
2012, Proceedings of 4th International Conference on Crack Paths, 2012
2012, Proceedings of APCFS-MM 2012, 2012
2012, International Journal of Modern Physics,-C, 2012
2019, International Journal of Fatigue (Elsevier), 2019
2019, Transactions on Engineering Sciences - WIT, 2019
2019, Role of compressive residual stresses produced by cutting and rubbing processing on fatigue strength of heat-treated SCM435 smooth specimens, 日本機械学会論文集(材料力学,機械材料,材料加工), 2019
2019, Key Engineering Materials (TTP), 2019
2020, Metals and Materials International (Springer), 2020
Books
1994, Elsevier, 1994
1995, 日本材料学会, 1995
1996, 理工学社, 1996
2012, 日本材料学会, 2012
Learned Societies to Belong
Japan Society of Mechanical Engineers
Japan Society of Materials Science
Grant-in-aid for Scientific Research
A study on practical application of ultrafine grained copper to electric materilas, 2008-2010
Study on application of ultrafine grained copper to structural and functional materials, 2011-2013
Improvement of high-cycle fatigue characteristics based on the microstructure of copper processed by severe plastic deformation, 2014-2016
Creation of anti-fatigue copper alloys with high electric conductivity and strength induced by nano-fiver of over-aged microstructure, 2018-2021
Grant-in-aid for Scientific Research(For10years)
Stochatic study on fatigue strength of high-strength materials, 1990
Research on application of linear notch mechanics to strength of notched advanced materials, 1992-1993
Effect of atmosphere on the fatigue behavior and its statistical characteristics of Al alloy specimens, 1997-1998
Social Contribution
International Research Project
2001, Study on Cu-6Ni-2Mn-2Sn-2Al alloy (Korean Institute of Machinery)
2003, Study on microstructure and fatigue bstrength of ultrafine grained copper (Korean Institute of Materials Science)
2014, Study on the maicrstructure and fatigue strength of Cu-Ni-Si alloy (Lorea Institute of Materials Science)