Pages 467-468
In order to create high strength materials, the metal forming with large strain is one of the available forming processes. The authors have developed the repeated shear deformation process with side-pressure under high hydrostatic pressure. After 10 times of shear deformation process, a tensile strength reached at about 1000MPa. But the elongation of material was considerably small. In this study, the ultra low carbon steels deformed up to 10 times by shear deformation process were annealed, and the properties were investigated. The elongation of material was increased with decreasing Vickers hardness and tensile strength.
