113 中性子回折によるARBを施した材料の集合組織およびミクロ組織評価(超塑性と材料および造形法,オーガナイズドセッション)

概要

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It has been reported that metals with ultrafine grains show outstanding properties such as high strength and toughness at ambient temperature and high corrosion resistance. We have proposed an ARB(accumulative roll-bonding)process, which is capable of producing intensive plastic deformation in a sheet material without any dimensional changes. Microstructural factors such as texture, substructure (dislocation structure and density) and intergranular stresses affect the mechanical properties of materials and they are expected to determine as macroscopically averaged values. Neutron diffraction enables us to measure these values for cm-ordered bulky specimens. In this study, texture measurements and profile analysis were simultaneously performed to determine the above microstructural factors.
社団法人日本機械学会の論文
2008-09-12