Repeated Shear Deformation Process of Various Carbon-Steels

Abstract

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 0.25%, 0.15% and 0.05% Carbon-Steels are deformed by shear deformation process, and the property of materials are investigated. The 0.25% Carbon-Steel specimen was pressed without rotation (route A) or with rotation of 90° after one pass (route C). Vickers hardness and tensile strength increased about twice as large as those of as-received materials after first process. After first process, the texture from bottom of specimen developed at center in the plane and 6 poles around it.