冷拉拔制备了Cu-12%Ag（质量分数）合金线材，研究了Cu-12%Ag合金在不同变形程度下Cu、Ag两相的形变织构。铸态组织演变成纤维组织形态过程中，两相中优先形成<111>织构，此外Cu相中还可形成<100>和<211>织构。织构强度随变形程度的升高而增大，并在一定变形程度下达到最大值。变形程度再继续升高时，两相中的<111>织构强度下降，而Cu相的<100>和<211>织构强度基本保持不变。在应变前期，引起织构分布变化的主要原因是位错滑移造成的晶体取向的改变。当应变超过一定程度后，界面切变导致晶体取向的改变也成为引起织构分布变化的重要影响因素。
Cu-12%Ag (mass fraction) filamentary composite was prepared by cold drawing. The intensity and distribution of crystal texture in both Cu and Ag phases were investigated for the composite under the condition of different draw ratio. In both Cu and Ag phases, <111> component can be preferentially formed during the evolution of as-cast microstructure into filamentary morphology. There are also <100> and <211> components in Cu phase besides <111> component. The texture intensity increases with increasing drawing strain and can reach a maximum at a certain draw ratio. Once drawing strain is higher than the certain draw ratio, the intensities of <100> and <211> components in Cu phase maintain an approximate constant but the intensity of <111> component in both Cu and Ag phases decreases. The change of crystal orientation induced by dislocation glide on slip planes is mainly responsible for the change of texture distribution in the range of lower drawing strain. However, interface shearing can play an important role in remodifying crystal orientation or varying texture distribution as drawing strain exceeds a certain degree.
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