337 くり返しせん断変形加工による炭素鋼の高強度化(OS 加工による材料の機能創製)

概要

論文の詳細を見る
In order to develop the high strength materials, the forming process with large strain is one of available processes. The repeated shear deformation process with side-pressure under high hydrostatic pressure had been developed by the authors. In this study, the 0.15%, 0.25%, 0.50% and 0.85% carbon steels are deformed by shear deformation process, and the properties of materials such as Vickers hardness, tensile strength and microstructure observation were investigated. The 0.50% carbon steel specimen was pressed without rotation (route A) or with rotation of 90° after one pass (route C). It was possible to deform by repeated shear deformation process without any failure for all carbon steels. After 3 passes of shear deformation, microstructures of all carbon steel were refined. Vickers hardness and tensile strength increased with increasing number of passes.
社団法人日本機械学会の論文
2001-11-02