Microstructure evolution and performance of Cu–10Fe–2Ag–0?15Zr in situ composite by cold rolling

摘要

The deformation processed Cu based in situ composite has high physical and mechanicalnperformance. In this paper, Cu–10Fe–2Ag–0?15Zr in situ composite was designed and preparednby cold drawing and cold rolling processes. Fe was the main additional element in order to lowernthe cost. The microstructure evolution was explored by SEM during the plastic deformation. It wasnshown that Fe fibres were produced during rolling process and the tensile strength of Cu–Fe innsitu composite was increased. The effect of distance between Fe fibres on tensile strength wasnalso analysed. Certainly, the intermediate annealing was achieved in the intermittence of rolling tonimprove the composite’s plasticity. Good performance matching of the tensile strength and thenelectrical conductivity was 713 MPa/61?3%IACS.nblanking process are increased.