Motomichi Yamamoto

Last Updated :2021/04/06

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Professor
Web Site
E-mail
motoyamahiroshima-u.ac.jp
Other Contact Details
"1-4-1, KAGAMIYAMA, HIGASHI-HIROSHIMA, HIROSHIMA", Japan
TEL : (+81)824-24-7815 FAX : (+81)824-24-7815
Self-introduction
Welding & joining Strength & fracture evaluation Laser processing & process imaging technology

Basic Information

Major Professional Backgrounds

  • 1995/04/01, 2001/03/31, Hiroshima University, Faculty of Engineering, Research Associate
  • 2001/04/01, 2001/04/01, Hiroshima University, Graduate School of Engineering, Research Associate
  • 2008/04/01, 2019/03/31, Hiroshima University, Graduate School of Engineering, Associate Professor
  • 2006/04/01, 2007/03/31, University of Toronto, Department of Material Science and Engineering, Faculty of Applied Science and Engineering, Visiting Researcher
  • 2019/04/01, 2020/03/31, Hiroshima University, Graduate School of Engineering, Professor

Educational Backgrounds

  • Hiroshima University, Graduate School, Division of Engineering, Japan, 1993/04, 1995/03
  • Hiroshima University, Faculty of Engineering, Japan, 1989/04, 1993/03

Academic Degrees

  • Doctor of Engineering, Hiroshima University
  • Master of Engineering, Hiroshima University

Educational Activity

  • 【Bachelor Degree Program】School of Engineering : Cluster 1(Mechanical Systems, Transportation, Material and Energy)
  • 【Master's Program】Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Mechanical Engineering Program
  • 【Doctoral Program】Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Mechanical Engineering Program

In Charge of Primary Major Programs

  • Mechanical System Engineering

Research Fields

  • Engineering;Integrated engineering;Naval and maritime engineering
  • Engineering;Material engineering;Material processing / Microstructural control engineering

Research Keywords

  • Welding
  • Laser process
  • Hot-wire
  • Elast-plastic analysis
  • Friction stir spot welding
  • Fracture mechanics
  • Welded structure strength

Affiliated Academic Societies

  • Japan Welding Socieety
  • The Japan Society of Naval Architects and Ocean Engineers
  • The Iron and Steel Institution of Japan
  • Japan Laser Processing Society

Educational Activity

Course in Charge

  1. 2021, Liberal Arts Education Program1, 4Term, Introduction to Mechanical Engineering
  2. 2021, Undergraduate Education, 3Term, Introduction of Mechanical and Transportation Engineering
  3. 2021, Undergraduate Education, Second Semester, Experiments in Mechanical Engineering II
  4. 2021, Undergraduate Education, Second Semester, Machine Design and Drawing
  5. 2021, Undergraduate Education, 2Term, Fundamentals of Materials Processing
  6. 2021, Undergraduate Education, 2Term, Fusion and Solidification Processings I
  7. 2021, Undergraduate Education, 3Term, Mechanical Behavior and Strength of Engineering Materials
  8. 2021, Graduate Education (Master's Program) , 1Term, Special Exercises on Mechanical Engineering A
  9. 2021, Graduate Education (Master's Program) , 2Term, Special Exercises on Mechanical Engineering A
  10. 2021, Graduate Education (Master's Program) , 3Term, Special Exercises on Mechanical Engineering B
  11. 2021, Graduate Education (Master's Program) , 4Term, Special Exercises on Mechanical Engineering B
  12. 2021, Graduate Education (Master's Program) , Academic Year, Special Study on Mechanical Engineering
  13. 2021, Graduate Education (Master's Program) , 2Term, Applied Fracture Mechanics
  14. 2021, Graduate Education (Master's Program) , 4Term, Mechanical Behavior and Strength of Engineering Materials
  15. 2021, Graduate Education (Doctoral Program) , Academic Year, Special Study on Mechanical Engineering

Award of Education

  1. 2000/.1
  2. 1997/.1

Research Activities

Academic Papers

  1. Cracking in the stir zones of Mg-alloy friction stir spot welds, JOURNAL OF MATERIALS SCIENCE, 42(18), 7657-7666, 200709
  2. Strain rates and grain growth in Al 5754 and Al 6061 friction stir spot welds, METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 38A(6), 1291-1302, 200706
  3. Local melting and cracking in Al 7075-T6 and Al 2024-T3 friction stir spot welds, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 12(6), 472-480, 200711
  4. Cracking in dissimilar Mg alloy friction stir spot welds, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 13(7), 583-592, 200810
  5. Cracking in dissimilar Mg alloy friction stir spot welds, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 13(7), 583-592, 200810
  6. Precipitation and Cr depletion profiles of Inconel 182 during heat treatments and laser surface melting, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 209(1), 416-425, 20090101
  7. Precipitation and Cr depletion profiles of Inconel 182 during heat treatments and laser surface melting, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 209(1), 416-425, 20090101
  8. Experimental investigation of material flow during friction stir spot welding, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 15(8), 666-670, 201011
  9. Effect of microstructure on liquation cracking during AZ91 friction stir spot welding, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 15(8), 671-675, 201011
  10. HIGH SPEED AND HIGH MAGNIFICATION IN SITU OBSERVATION OF RESIDUAL LIQUID METAL DURING LASER WELDING PROCESS, ACTA METALLURGICA SINICA, 47(3), 305-310, 20110311
  11. HIGH SPEED AND HIGH MAGNIFICATION IN SITU OBSERVATION OF RESIDUAL LIQUID METAL DURING LASER WELDING PROCESS, ACTA METALLURGICA SINICA, 47(3), 305-310, 20110311
  12. EXPERIMENTAL RESEARCH AND NUMERICAL SIMULATION OF SOLIDIFICATION CRACK DURING LASER WELDING OF RING STRUCTURE, ACTA METALLURGICA SINICA, 47(10), 1241-1245, 20111011
  13. EXPERIMENTAL RESEARCH AND NUMERICAL SIMULATION OF SOLIDIFICATION CRACK DURING LASER WELDING OF RING STRUCTURE, ACTA METALLURGICA SINICA, 47(10), 1241-1245, 20111011
  14. The effect of welding conditions on solidification cracking susceptibility of type 310S stainless steel during laser welding using an in-situ observation technique, WELDING IN THE WORLD, 57(3), 383-390, 201305
  15. Development of a highly efficient hot-wire laser hybrid process for narrow-gap welding-welding phenomena and their adequate conditions, WELDING IN THE WORLD, 57(5), 607-613, 201309
  16. Strength and Reliability of Welded Joint of Material for Hot Dip Galvanizing Bath (Third Report) -Characteristics of Creep Rupture Strength in Liquid Zinc of Welded Joint-, Transactions of The West-Japan Society of Naval Architects, 98, 359-364, 20000401
  17. Influences of Secondary Buckling on the Buckling/Plastic Collapse Behavior of Plates, 347-355, 19950601
  18. Crack Initiation Strength of Structurel Steel Members Having Experienced Large Compressive Strain due to Buckling Deformation (1st Report), 565-573, 19951201
  19. Cpncideration of Fracture Toughness of steel Plate having Surface Layer with Ultra Fine Grain Microstructure, 185-192, 185-192, 19960301
  20. A Study on the Evaluation of Covrosion Fatigue Crack Initiation Life, 91-96, 19970301
  21. Fatigue Strength in Sea Water of Steel Plate having surface Layers with Ultra Fine Grained Microstructure and its Evaluation(Second report), Transactions of The West-Japan Society of Naval Architects, 147-156, 19990301
  22. A Study on Application of Ship Hull Steel Plates at Low Temperature Based on Fracture Toughness, Transactions of The West-Japan Society of Naval Architects, 157-165, 19990301
  23. Fatigne Strergth in Sea Water of Steel Plate haying Surface Layers with Ultra Fine Grain Microstructure and its Evaluation (Third Report), Transactions of The West-Japan Society of Naval Archtects, 249-256, 19990801
  24. Strength and Reliability of welding Joint of Material for Hot Dip Galranizing Bath(First Report)-Characteristic of Elerated Temperature Strength and Liquid retal Embrittlement in Liguid Zinc of Welded Joint-, Transaction of The West-Japan Society of Naval Architects, 269-277, 19990801
  25. A Consrderation on Use of Material Grades for Hull Structural Members Based on Fracture Toughness(Second Report), Transaction of The West-Japan Society of Naval Architects, 257-267, 19990801
  26. Study on Fatigue Strength in Air and Sea Water of Plasma Arc Cut Steel Plate, Transactions of West-Japan Society of Naval Arvhitecs, 343-350, 20000301
  27. Strength and Reliability of Welded Joint of Material for Hot Dip Galranizing Bath(Second Report-Characteristics of Long-time Corrosion in Liguid Zinc of Welded Joint-), Transactions of West-Japan Society of Naval Arvhitecs, 351-358, 20000301
  28. Strength and Reliability of welded Joint of Material for Hot Dip Galranizing Bath (Third Report)- Chara ctenistics of Creep Rupture Strength in Liguid Zinc of Welded Joint-, Transactions of West-Japan Society of Naval Arvhitecs, 359-364, 20000301
  29. Fatigue Strength in Sea Water of Steel Plate having surface Layers with Ultla Fine Grain Microstructure and its Evaluation(Fourth Report), Transactions of The West-Japan Society of Naval Architects, 335-343, 20000801
  30. Study on Fatigue Strength in Air and Sea Water of Plasma Arc Cut Steel Plate(Second Report), Transactions of The West-Japan Society of Naval Architects, 223-231, 20010301
  31. A Study on Unstable Fracture Strength of Welded Joint in Hot Dip Galvanizing Bath, Transactions of The West-Japan Society of Naval Architects, 233-240, 20010301
  32. A Study on Optimum Structural Design of Container Ship using Genetic Algorithms and Convergence of its Solution, Transactions of The West-Japan Society of Naval Architects, 185-194, 20010301
  33. Crack Initiation Strength of Structural Steel Members Having Experienced Large Compressive Strain clue to Buckling Deformation(Fourth Report), Journal of the society of naval architects of japan, 387-394, 20010601
  34. A Study on Optimum Structural Design of Container Ship Using Genetic Algorithms and Convergence of its Solution, Transactions of The West-Japan Society of Naval Architects, 101, 185-194, 20010301
  35. Strength of New-Type Steel Plate Having Surface Layers with Ultrafine Grain Microstructure, 20010601
  36. A New Type VLFS Using Submerged Plates: Sub-Plate VLFS--Part-3 Structural Response and Strength--, 20010601
  37. Study on Strength and Notch Toughness of Structural Steel Members having Experienced Large Conpressive Strain, Transactions of The West-Japan Society of Naval Architects, 327-334, 20000801
  38. A New Type VLFS using Submerged Plates: Sub-Plate VLFS--Part-3 Structural Response and Strength --, Proceedings of the 20th International Conference of Offshore Mechanics and Arctic Engineering, CR-ROM, OSU-5019, 20010601
  39. A Knowledge-Review Oriented PBL -Paper Bicycle Project-, 50(6), 202-210, 20020401
  40. Prediction of Liquation Crack Initiation at HAZ of Laser Weldment Based on Strain Analysis at Elevated Temperature, Proceedings of the International Welding/Joining Conference Korea 2002, 244-249, 20020601
  41. Fatigue Strength of Boxing Fillet Welded Joints for TMCP Type 490 MPa-Class High Tensile Steel Plates, Proceedings of the Fifth (1995) International Offshore and Polar Engineering conference, 75-82, 19950601
  42. A Suggested Method of Ship Hull Plating Fractur Toughness Assessment, Proceedings of the Fifth (1995) International Offshore and Polar Engineering conference, 256-262, 19960501
  43. Concept Study on the Next Generation Student Information System at Hiroshima University - Research and investigation for introducing Study Supporting System -, 455-456, 20040701
  44. Stress Modification by Post Processing Technique based on Characteristics of Finite Element Method, Transactions of The West-Japan Society of Naval Architects, 108, 225-234, 20040801
  45. A Study on Numerical Analysis of Laser Type Welding for Estimating Temperature Distribution and HAZ Shape, Transactions of The West-Japan Society of Naval Architects, 109, 173-184, 20050301
  46. Crack Initiation Strength of Structural Steel Members having Experienced Large Compressive Strain, Proc. OMAE2002, 20020601
  47. Prediction of Liquation Crack Initiation at HAZ of Laser Weldment Based on Three Dimensional Strain Analysis at Elevated Temperature, Proc. LAMP2002, 20020501
  48. Prediction of Liquation Crack Initiation at HAZ of Laser Weldment Based on Strain Analysis at Elevated Temperature, Proc. the International Welding/Joining Conference Korea, 244-249, 20021001
  49. Liquid zinc corrosion of steel welds, Science and Technology of Welding and joining, 7(6), 397-402, 20020401
  50. Developmnt of Structural Steel with Superior Resistance Against Fatigue Crack Growth, Proc. OMAE2004, 20040601
  51. Study on Evaluation Method for Liquation Crack Initiation at HAZ of Laser Weldment, Proc. IIW2004, 20040701
  52. A Study on Numerical Analysis of Laser Weldng for Estimating Temperature Distribution and Bed Shape, Transactions of The West-Japan Society of Naval Architects, 173-184, 20050301
  53. Prediction of liquation Crack Initiation at HAZ of Laser Weldment Based on Strain Analysis at Elevated Temperature, Proceedings of the Seventeenth Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures, 287-296, 20030401
  54. Thermo-elastic-viscoplastic Analysis for Evaluation of Hot Crack Susceptibility in Laser Welding, Proceedings of TEAM 2006, 20, 337-344, 20061001
  55. Cracking in Mg-alloy Friction Stir Spot Welding, Proceedings of UIIW (University-Industry International Workshop) - Frontiers of Science & Technology of Welding- (Nantes, France), CD-ROM, 20070627
  56. Development of Ultra-High-Speed GTA Welding Process Using Pulse-Heated Hot-Wire, Proceedings of the 60th Annual Assembly of International Institute of Welding (IIW), IIW-XII-1927-07, 20070703
  57. Cracking and Local Melting in Mg-alloy and Al-alloy during Friction Stir Spot Welding, Proceedings of the 60th Annual Assembly of International Institute of Welding (IIW), IIW-III-1429-07, 20070703
  58. Liquid Penetration Induced Cracking in Mg-alloy Spot Welds, Abstract Book of International Welding Joining Conference-Korea 2007, 242-243, 20070510
  59. Development of Evaluation Method for Solidification Cracking Susceptibility of Inconel600/SUS347 Dissimilar Laser Weld Metal by In-situ Obsevation, Abstract Book of International Welding Joining Conference-Korea 2007, 20-21, 20070510
  60. Similar and dissimilar spot welding of Mg alloys, Magnesium Technology in the Global Age, Ed: M.O. Pekguleryuz and L.W.F. Mackenzie, 479-492, 20061001
  61. Suggestion of Prediction Method of Liquation Cracking in HAZ of Laser Weldment of Ni-base Superalloys Using the Three-Dimensional Thermo-Elastic-Plastic Analysis, Proceedings of Inter-University Research Seminar (IURS) of Science and Technology of Welding and Joining (Beijing, China), 247-263, 20050815
  62. Liquid Penetration Induced (LPI) Cracking in AZ91 Friction Stir Spot Welds, Quarterly Journal of The Japan Welding Society, 25(1), 208-214, 20070401
  63. Local melting and cracking in Al 7075-T6 and Al 2024-T3 friction stir spot welds, Science and Technology of Welding and Joining, 12(6), 427-480, 20070801
  64. Mechanism of cracking in AZ91 friction stir spot welds, Science and Technology of Welding and Joining, 12(3), 208-216, 20070401
  65. Eutectic Segregation and Cracking in AZ91 Friction Stir Spot Welds, SAE Paper, SAE-2007-01-1700, 20070401
  66. CRACKING AND LOCAL MELTING IN MG-ALLOY AND AL-ALLOY DURING FRICTION STIR SPOT WELDING, WELDINGINTHEWORLD, 52(9-10), 38-46, 20080901
  67. Study of Evaluation Method for Liquation Crack Initiation in the Haz of a Laser Weldment, WELDINGINTHEWORLD, 49(9-10), 49-57, 20050901
  68. Local melting and tool slippage during friction stir spot welding of Al-alloys, JOURNAL OF MATERIALS SCIENCE, 43(22), 41316, 20080101
  69. Effect of welding parameters on the strain rate and microstructure of friction stir spot welded 2024 aluminum alloy, JOURNAL OF MATERIALS SCIENCE, 42(14), 5589-5601, 20070701
  70. Formation and retention of local melted films in AZ91 friction stir spot welds, JOURNAL OF MATERIALS SCIENCE, 42(24), 9954-9965, 20071201
  71. Bead formation and wire temperature distribution during ULTRA-HIGH-SPEED GTA WELDING using pulse-heated hot-wire, WELDINGINTHEWORLD, 55(3-4), 12-18, 20110301
  72. Bead formation and wire temperature distribution during ULTRA-HIGH-SPEED GTA WELDING using pulse-heated hot-wire, WELDING IN THE WORLD, 55(3-4), 12-18, 20110301
  73. Study on Solidification Cracking of Laser Dissimilar Welded Joints by using in-Situ Observation and Numerical Simulation, WELDINGINTHEWORLD, 54(9-10), R257-R266, 20100901
  74. STUDY ON SOLIDIFICATION CRACKING OF LASER DISSIMILAR WELDED JOINTS BY USING IN-SITU OBSERVATION AND NUMERICAL SIMULATION, WELDING IN THE WORLD, 54(9-10), R257-R266, 20100901
  75. Liquid zinc corrosion of steel welds, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 7(6), 397-402, 200212
  76. Stress corrosion cracking sealing in overlaying of Inconel 182 by laser surface melting, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 173(3), 330-336, 20060420
  77. Modeling of precipitation and Cr depletion profiles of Inconel 600 during heat treatments and LSM procedure, JOURNAL OF ALLOYS AND COMPOUNDS, 419(1-2), 118-125, 20060810
  78. Mechanism of cracking in AZ91 friction stir spot welds, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 12(3), 208-216, 200705
  79. Bead formation and wire temperature distribution during ULTRA-HIGH-SPEED GTA WELDING using pulse-heated hot-wire, WELDING IN THE WORLD, 55(3-4), 12-18, 2011
  80. STUDY ON SOLIDIFICATION CRACKING OF LASER DISSIMILAR WELDED JOINTS BY USING IN-SITU OBSERVATION AND NUMERICAL SIMULATION, WELDING IN THE WORLD, 54(9-10), R257-R266, 2010
  81. Solidification cracking susceptibility of modified 9Cr1Mo steel weld metal during hot-wire laser welding with a narrow gap groove, WELDING IN THE WORLD, 58(4), 469-476, 201407
  82. Development of a Heat Source Model for Narrow-gap Hot-wire Laser Welding, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 31(4), 82-85, 2013
  83. Development of High Efficient Hot-wire Laser Welding for Narrow Gap Joint, 2013
  84. evelopment of WC Hard-facing Welding Process using Pulse Heated Hot-wire Gas Tungsten Arc Welding System, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 31(4), 57-60, 2013
  85. Hot-wire Laser Fillet Welding on Steel Plate Coated with Shop Primer, 2013
  86. In-situ Temperature Measurement using Monochrome High-speed Sensors during Laser Welding, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 31(4), 78-81, 2013
  87. In-situ Temperature Measurement using Two-sensors Camera during Laser Welding,
  88. Material Flow during Dissimilar Friction Stir Spot Welding on Mg alloy,, 2013
  89. Material Flow on Dissimilar Friction Stir Spot Welded Joints of Mg Alloys, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 31(4), 82-85
  90. In Situ Observation Method for Quantitative Evaluation of Solidification Phenomena and Solidification Cracks during Welding, Materials Science Forum, 782, 3-7, 2014
  91. The Effect of welding conditions on solidification cracking susceptibility of type 310S stainless steel during laser welding using an in-situ observation technique, WELDING IN THE WORLD, 57, 383-390, 201305
  92. Development of a highly efficient hot-wire laser hybrid process for narrow-gap welding?welding phenomena and their adequate conditions, WELDING IN THE WORLD, 57, 607-613, 201305
  93. Prediction of occurrence of solidification cracking of heat-resistant magnesium alloys during die-casting, Journal of Japan Institute of Light Metals, 63(1), 14-20, 2013
  94. Evaluation of solidification cracking susceptibility of heat-resistant magnesium alloy produced by semi-solid injection molding process, Journal of Japan Institute of Light Metals, 63(6), 223-228, 2013
  95. Evaluation of solidification cracking susceptibilities of heat-resistant magnesium alloys during die-casting using in-situ observation method, Journal of Japan Institute of Light Metals, 63(1), 8-13, 2013
  96. Hot-wire Laser Welding Process Using Laser Diode for Large-Diameter Pipe with Narrow Gap Joint, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 33(2), 107-110, 2015
  97. Welding Phenomena during Vertical Welding on Thick Steel Plate using Hot-wire Laser Welding Method, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 33(2), 143-147, 2015
  98. Investigation of Evaluation Method for Hot Cracking Susceptibility of 310S Stainless Steel during Laser Welding using Trans-Varestraint Test, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 33(2), 39-43, 2015
  99. In-situ Temperature Measurement using a Multi-sensor Camera during Laser Welding, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 33(2), 93-97, 2015
  100. Weld Defect Prevention for Fillet Welded Joints on Steel Plates Coated with Shop Primer using Hot-wire Laser Welding, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 33(2), 98-101, 2015
  101. Oblique laser irradiation technique for vertical welding of thick steel plates employing hot-wire laser welding, QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 33(4), 326-331, 2015
  102. Crack repair welding by CMT brazing using low melting point filler wire for long-term used steam turbine cases of Cr-Mo-V cast steels, MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 666, 11-18, 20160601
  103. New measurement technique of ductility curve for ductility-dip cracking susceptibility in Alloy 690 welds, MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 672, 59-64, 20160830
  104. Evaluation of Solidification Cracking Susceptibility for Austenitic Stainless Steel during Laser Trans-Varestraint Test Using Two-dimensional Temperature Measurement, ISIJ INTERNATIONAL, 56(11), 2022-2028, 20161004
  105. A Study on Stress Concentration Factor on Weld Toes of Cruciform Welded Joints by FEM Analysis, Journal of the Japan Society of Naval Architects and Ocean Engineers, 309-315, 20161201
  106. Heat Transfer Performance of Sodium Encapsulating Engine Valves, Advanced Experimental Mechanics, 1, 69-73, 20160405
  107. Hot-wire Laser Brazing Technology for Steel / Aluminum Alloy Dissimilar Joint, 35(2), 155-159, 20171201
  108. Elucidation of Grain Refinement Mechanism in Weld Metal of Type 310S Stainless Steel- Grain Refinement in Weld Metal by Hot-wire GTAW Process -, 35(1), 36-44, 20170415
  109. Effect of Wire Feeding Conditions on Grain Refinement in Weld Metal of Type 310S Stainless Steel- Grain Refinement in Weld Metal by Hot-wire GTAW Process -, 35(1), 45-50, 20170420
  110. Relationship Between Grain Refinement in Weld Metal of Type 310S Stainless Steel and Welding Conditions and Mechanical Properties- Grain Refinement in Weld Metal by Hot-wire GTAW Process -, 35(1), 6-12, 20170410
  111. Effect of Heating Rate on Grain Refinement in Weld Metal of Type 430 Stainless Steel- Grain Refinement in Weld Metal by Hot-wire GTAW Process -, 35(1), 51-56, 20170510
  112. A Study on Stress Concentration Factor on Weld Toes of Cruciform Welded Joints with Misalignment by FEM Analysis− Relation between stress concentration factor and relative positional difference of weld toes −, 26, 145-155, 20171201
  113. A Study on the Fatigue Strength of Welded Joints of Duplex Stainless-Clad Steel Plates for Application in Chemical Tankers, Welding Letters, 35(4), 1-3, 20171023
  114. Investigation of hot-wire laser welding conditions for lap fillet joint of high-tensile steel sheets, 88, 9-12, 20171001
  115. Improvement of fatigue strength of fillet welded lap joint for high-tensile steel sheets using hot-wire laser welding method, 257-260, 20171205
  116. A Study on Fatigue Strength of Welded Joints for Du- plex Stainless Steel Plate and Austenitic Stainless− Clad Steel Plate, JHPI, 55(3), 112-120, 20170525
  117. Sheet gap control by laser preheating before laser welding on lap joint of galvannealed steel sheets and its effect on weldability, 36(3), 199-205, 20180901
  118. Development of High-efficiency Welding Technology for Thick steel Plate using Hot-wire CO2 Arc Welding Method, Proceedings of The 8th Asia-Pacific IIW International Congress, 20190320
  119. Development of Vertical Welding Process for Heavy-thick Steel Plate using Hot-wire Laser Welding, Proceedings of The 8th Asia-Pacific IIW International Congress, 20190320
  120. A Study on Fracture Toughness of Heavy−Thick−Steel Plates and Its Welded Joints by Small Size Tension Test Specimen, JHPI, 57(4), 201-211, 20190828
  121. Fracture Strength Evaluation of Steel / Aluminum Alloy Lap Fillet Joint made by Hot-wire Laser Brazing, Proceedings of the JAAA2018, 20181127

Awards

  1. 1993, Student award, The Society of Naval Architects of Japan
  2. 2003/04, Presentation award 2003, The Japan Welding Society, レーザ溶接部の3次元熱弾塑性ひずみ解析手法の検討ーNi基耐熱超合金レーザ溶接部の高温割れ発生評価法に関する研究(第1報)ー
  3. 2006/05, Outstanding young researcher award 2006, The Technical Commission on Welding Metallurgy, The Japan Welding Society, 3次元高温ひずみ解析を用いたNi基耐熱超合金レーザ溶接部の液化割れ発生評価法に関する研究
  4. 2007/05, Best Paper Award, IWJC-Korea 2007
  5. 2008/04/09, Best paper award for young researcher, The Japan Welding Society, マグネシウム合金AZ91摩擦撹拌スポット溶接部における液膜侵入誘起割れ(LPI Cracking)
  6. 2008/06/16, Presentation award, The Technical Commission on Joining and Materials Processing for Light Structure, The Japan Welding Society, 摩擦撹拌点接合(FSSW)時の局部溶融・割れ発生現象
  7. 2008/11/18, Komatsu Award (Best Poster Award), The Japan Welding Society, Melting Phenomenon during Ultra-High-Speed GTA Welding Method using Pulse-heated Hot-wire
  8. 2010/08/04, Young researcher award for welding physics and technology, The Technical Commission on Welding Process, The Japan Welding Society, パルス通電加熱ホットワイヤを用いた高能率TIG溶接技術の開発
  9. 2010/11/11, Best Paper Award, Visual-JW201, Effect of grain size on solidification cracking susceptibility of type 347 stainless steel during laser welding
  10. 2010/11/17, Presentation award 2010, 日本船舶海洋工学会 西部支部, ホットワイヤ・レーザ溶接法を用いた高品質すみ肉溶接技術の開発
  11. 2011/11/15, Professor Koichi Masubuchi Award, American Welding Society, 革新的な溶接法の研究・開発,溶接割れに関する研究,溶接構造物の強度・安全性評価・向上に関する研究など,幅広く溶接・接合技術の研究・開発に貢献
  12. 2013/06/11, Light Metal Paper Prize, Japan Light Metal Welding Association, AZ31マグネシウム合金の摩擦攪拌点接合時の塑性流動現象および継手強度に及ぼすツール形状の影響
  13. 2014/04/23, Promotion of Welding Research Award, The Japan Welding Society
  14. 2015/08/04, Young researcher award for welding physics and technology, The Technical Commission on Welding Process, The Japan Welding Society, ホットワイヤ・レーザ溶接法による厚鋼板立向き溶接プロセスの開発

Patented

  1. Patent, JP5600837, 2014/08/29
  2. Patent, JP5600838, 2014/08/29
  3. Patent, 5600837, 2014/08/29
  4. Patent, 5600838, 2014/08/29

External Funds

Acceptance Results of Competitive Funds

  1. Strategic Core Technology Advancement Program, 2015/09/10, 2016/02/29
  2. KAKENHI, Development of High-tensile Strength Steel Welding Method for Shipbuilding using Hot-wire Laser Welding Technology, 2010, 2011
  3. KAKENHI, 2002, 2003
  4. KAKENHI, Study on analysis model for simulating hot cracking phenomenon at heat affected zone of weldment, 2001, 2003
  5. KAKENHI, 1998, 1999
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