Effects of Electric Pulse Treatment during Solidification on the Solidification Structure of Al-5%Cu Alloy

Abstract:

In this paper, the effects of electric pulse on solidified structure and graining process of near eutectic Al-5%Cu alloy have been investigated during solidified process. It was treated with different pulse voltages at 740°C in this experiment, and established the cooling curve. The results show that the improvement of alloy casting macro-segregation and solidification structure refinement by electric pulse discharging; The change of the solidified casting structure has a preferable coincidence relation with the change of the cooling curve, and analysis of the cooling curve shows that the best granular effect has a maximal supercooling on the curve.

• Periodical: Advanced Materials Research (Volumes 299-300)
• Pages: 572-575
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.299-300.572
• Online since: July 2011
• Authors: Jin Gang Qi, Shan Dai, Zuo Fu Zhao, Dong Jun Zhang, Jian Zhong Wang
• Keywords: Al-Cu Alloys, Cooling Curve, Electric Pulse Modification (EPM), Solidification Structure

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