Influence of Extrusion Temperature on Microstructures and Properties of Cu-17Ni-3Al-X Alloy

Abstract:

The microstructures and mechanical properties of the Cu-17Ni-3Al-X alloy extruded at different temperatures were investigated by hardness and tensile tests, optical microscope and scanning electronic microscope. The experimental results showed that dynamic re-crystallization occured during the hot extrusion at 1000 . The grain size of the extruded alloy was significantly refined and the mechanical properties increased remarkably compared to the as-cast alloy. The alloy extruded at 1075 exhibited good mechanical properties with tensile strength of 994 MPa, Brinell hardness of 296 and elongation of 8.0%, which are 30%, 9% and 285% higher than that of the as-cast alloy.

• Periodical: Materials Science Forum (Volume 749)
• Pages: 105-111
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.749.105
• Online since: March 2013
• Authors: Wei Yan, Yuan Hui Weng, Zong Qiang Luo, Wei Wen Zhang
• Keywords: Cu-Ni Alloy, Extrusion Temperature, Mechanical Property, Microstructure

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