On the Development of Drawing Texture of 17Cr-12Ni and 18Cr-10Ni-3Cu Stainless Steels

In order to study the formation process of drawing texture of 17Cr-12Ni and 18Cr-10Ni-3Cu stainless steels, measurements of a drawing force were carried out and the orientation change occurring during the drawing was investigated using the pole figure with various reductions in area. The induced martensite (ε) was observed in an early stage during the drawing, and preferred orientations (111)[\bar1\bar12] and (111)[11\bar2] were developed by drawing up to about 40% reduction in area. As the drawing ratio increases, the main orientation was accompanied with the {011}〈112〉 component. It was found that the slip rotation mentioned above results in relaxation of the drawing stress. The 〈111〉 fiber texture developed by drawing up to about 83% was accompanied with stable orientations {112}〈111〉 and {011}〈111〉. The increase of a wire strength was expected by development of the 〈111〉 fiber texture.The formation process of the drawing texture was explained by considering the relative resolved shear stress under the biaxial stress condition.