Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Kyosuke Hirayama Last modified date:2018.06.05

Assistant Professor / Strength of Materials / Department of Mechanical Engineering / Faculty of Engineering


Presentations
1. Kyosuke Hirayama, Hiroyuki Toda, Teruyuki Shimoji, Yasuto Tanabe, Kentaro Uesugi, Akihisa Takeuchi, Effects of Crystallographic Structure Damage Evolution Using Diffraction Amalgamated Grain-boundary Tracking Technique , TMS2017, 2017.02.
2. 平山 恭介, 戸田 裕之, 上杉健太朗, 竹内晃久, Evaluation of Crystallographic Deformation Behavior in Aluminium Alloy by Means of Diffraction-Amalgamated Grain-Boundary Tracking (DAGT) Technique, 3rd International Congress on 3D Materials Science 2016, 2016.07, We proposed new diffraction-amalgamated grain-boundary tracking (DAGT)
technique, which was developed by combining the grain boundary tracking (GBT) technique and XRD using a pencil beam. The method provides a description of the crystallographic orientations of individual grains in polycrystalline material during deformation by 4D (3D + time). The main motivation of this study is to verify the plastic deformation behavior on the basis of DAGT technique.
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3. 平山 恭介, 戸田 裕之, 寺岡佑佳子, 上杉健太朗, 竹内晃久, Assessment of deformation behavior in aluminum alloy with Diffraction-Amalgamated Grain-Boundary Tracking (DAGT) technique, The 15th International Conference on Aluminum Alloys, 2016.06, The behavior of individual grain during plastic deformation is affected by shape and size of grains and the crystal orientations for the grains in polycrystalline. We proposed new diffraction-amalgamated grain-boundary tracking (DAGT) technique, which was developed by combining the grain boundary tracking (GBT) technique and a pencil beam XRD. The method provides a description of the crystallographic orientations of individual grains in polycrystalline material during deformation by 4D (3D + time). In addition, the crystal orientation of each grain in plastic deformed material with high strain rate over 20% is determined by means of this technique. Therefore we conducted the assessment of the plastic deformation behavior based on determination of crystal orientation before and after deformation for each grain by using DAGT technique..