Effects of Electric Pulse Modification on As-Cast Texture of Pure Copper

Abstract:

The modification of liquid metal by electric pulse (EP or EPM) is a novel method for improvement of solidification structure. In this study, the as-cast texture of EP-modified pure copper was investigated by using X-ray Schulz backscattered method. The experimental results show that the as-cast texture of EP-modified pure copper is dissimilar with that of the unmodified. The unmodified mainly exhibits a type of {110}<001> texture, and the maximum value of orientation density is 10.07, in the plane that parallel to the vertical section along the ingot axis, the <110> crystal direction has the most volume fraction of 27.18%; By contrast, the as-cast texture of EP-modified pure copper shows a typical type of {102}<001>, and the maximum value of orientation density is 12.88, at the same time, the corresponding <102> crystal direction changes to be the most volume fraction and its value is 22.82%. These facts indicate that the crystal orientation (texture) of solidification structure could be altered by EPM, and EPM technology would thus influence the following metal formability.

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 1894-1897
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.1894
• Online since: August 2010
• Authors: Jin Gang Qi, Jian Zhong Wang, Xing Jiang Liu, Shan Dai
• Keywords: Electric Pulse Modification (EPM), Pure Copper, Texture, X-Ray Diffraction (XRD)

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