529 側圧負荷状態でくり返しせん断変形加工されたアルミニウム材料のTEM観察(OS 加工による材料の機能創製)

概要

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In order to develop the high strength materials, the forming process with large strain is one of available processes. The authors have developed the repeated shear deformation process with side pressure under high hydrostatic pressure. In this study, the aluminum base materials (pure aluminum and Al-Mg alloy) are deformed by shear deformation process with side pressure, and TEM observation for microstructure of those materials was carried out. By 10 times repeated shear deformation process, grain size of those materials became smaller and misorientation angle became higher. After 10 times deformation, fine grain structures with high angle boundary were obtained. The grain size was long length of 1.2μm and short length of 0.2μm in pure aluminum, and long length of 0.8μm and short length of 0.1μm in Al-Mg alloy.
一般社団法人日本機械学会の論文
2000-11-24