Experiments and Simulations by Self‐Consistent Models of TextureDevelopment in Cu–Fe Powder Composites

Abstract

Two-Sites Self-Consistent (2-SSC) models have been used for simulation of texture development oftwo-phase materials (Bolmaro and Lebensohn, 1996;Bolmaro et al., 1997).When both phases are plastically deforming the co-deformation and sharing of spins have to be taken into account via interaction among phases. One-Site Self-Consistent (1-SSC) models are able to consider interaction among each grain and the rest ofsurrounding grains through a mean field calculated over the "matrix grains". The next level ofcomplexity, i.e., 2-SSC models, is appropriate to capture some interaction features between phases. In the current paper, starting from well-defined microstructures and textures of Cu-Fe powder composites, the textures obtained after wire-drawing are simulated taking into account codeformation and sharing of rotations. The results are shown agreeing with experimental ones provided that, depending on volume fraction and relative strength of both phases, different ad-hoc strain rate sensitivities are used.

Development of wire drawing textures in Cu–Fe: the influence of macroscopic and microscopic heterogeneities

“…The 'transition' nature of this component has been studied elsewhere [11]. It is also apparently built upon the continuous transference of grains from component (100) along the whole section 100 → 111 of the IPF to direction 111 .…”

“…A 5 • × 5 • grid is used for both experiments and simulations. Details about sample fabrication and measurement procedure have been provided elsewhere [11]. Inverse pole figures will appear later in the paper for the sake of keeping order in presenting the information.…”

Texture Determination of Thin Cu-Wires by Synchrotron Radiation

“…1d) [6]. Sample preparation is very simple and corrections are not necessary, which has been used to investigate Fe-Cu composites [7]. 1e shows an example of a thin Cu-wire of 122µm wire diameter, which gives some problems in the sample preparation.…”

Texture Determination of Thin Cu-Wires by Synchrotron Radiation

“…1d) [6]. Sample preparation is very simple and corrections are not necessary, which has been used to investigate Fe-Cu composites [7]. 1e shows an example of a thin Cu-wire of 122µm wire diameter, which gives some problems in the sample preparation.…”