Effect of electric current densities on microstructure and mechanical properties of a Cu-Zn alloyReport as inadecuate




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1 Research Institute 2 Key Laboratory for Anisotropy and Texture of Materials 3 School of Materials and Matallurgy

Abstract : As an instantaneous high energy input method, the electric current pulses treatment ECP has been extensively applied in materials science and engineering. In this work, by changing the current densities, the effect of ECP on the microstructures and the mechanical properties in a Cu-Zn alloy is investigated. The results show that the elongation of samples treated after ECP is greatly improved without a sharp decrease of the tensile strength. And with current density increasing at jmax=12.99kA-mm2, the comprehensive mechanical properties is improved. The possible reason can be ascribed to the increased dislocation mobility and the crack healing induced by ECP.

Keywords : electric current pulses microstructure mechanical properties current densities





Author: X.L. Wang - N. Wu - M.S. Liu - W.B. Dai - Y.H. Yan - X. Zhao -

Source: https://hal.archives-ouvertes.fr/



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