The effectiveness of Equal Channel Angular Pressing and rod rolling for refining microstructures and obtaining high strength in a Cu–Fe composite

Morris, David G.; Muñoz-Morris, Ma Antonia

doi:10.1016/j.msea.2011.04.076

Cited by 7 publications

(1 citation statement)

References 40 publications

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“…In these in situ composites, the Cu-Fe system has attracted particular attention because of the relatively low cost of the Fe constituent (Jeong et al, 2009;Qu et al, 2011;Morris and Muñoz-Morris, 2011). Cu-Fe alloy could produce a high deformation without breakage during drawing strain at room temperature because of the excellent plasticity of Fe and Cu phases (Funkenbusch and Courtney, 1981).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and hardness of Cu-12% Fe composite at different drawing strains

Yao

Chen

et al. 2014

J. Zheijang Univ.-Sci.

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Cu-12% Fe (in weight) composite was prepared by casting, pretreating, and cold drawing. The microstructure was observed and Vickers hardness was measured for the composite at various drawing strains. Cu and Fe grains could evolve into aligned filaments during the drawing process. X-ray diffraction (XRD) was used to analyze the orientation evolution during the drawing process. The axial direction of the filamentary structure has different preferred orientations from the radial directions. The strain of Fe grains linearly increases with an increase in the drawing strain up to 6.0, and deviates from the linear relation when the drawing strain is higher than 6.0. With an increase in the drawing strain, the microstructure scales of Fe filaments exponentially decrease. The density of the interface between Cu and Fe phases exponentially increases with an increase in the aspect ratio of Fe filaments. There is a similar Hall-Petch relationship between the hardness and Fe filament spacing. The refined microstructure from drawing deformation at drawing strains lower than 3.0 can induce a more significant hardening effect than that at drawing strains higher than 3.0.

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