1757 ナノ結晶構造のEBSD解析に基づく超細粒Cuの強度および変形機構の解明(S16-6 先進材料の創成・評価,S16 先進材料の強度・機能評価とメゾメカニックス)

概要

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Electron backscattering diffraction, EBSD, technique as well as neutron diffraction method was employed in order to investigate the deformation and damage mechanism in pure copper processed by equal channel angular pressing, ECAP. Special attention was paid to the microstructure that consists of nanoscopic and submicron grains with focus on the grain boundary sliding in the nanocrystals. The results of the neutron diffraction measurement show that the grain boundary sliding occurs in the specimen based on the change in the full width at half maximum of the diffraction profiles. Nano-scale analysis by EBSD show the grain boundary sliding in each grain with the grain size of approximately 200nm.
社団法人日本機械学会の論文
2005-09-18