2007, Vol. 43

Issue (6): 643-647 DOI:

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. . Acta Metall Sin, 2007, 43(6): 643-647 .

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Abstract 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.

Key words: Cu-Ag alloy drawing strain crystal texture

Received: 30 October 2006

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2007/V43/I6/643

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