NDLI: Microstructure of aluminum/copper clad composite fabricated by casting-cold extrusion forming

Content Provider	Springer Nature Link
Author	Luo, Jun ting Zhao, Shuang jing Zhang, Chun xiang
Copyright Year	2011
Abstract	An aluminum/copper clad composite was fabricated by the casting-cold extrusion forming technology and the microstructures of the products were observed and analyzed. It is found that aluminum grains at the interface are refined in the radial profiles of cone-shaped deformation zone, but the grains in the center maintain the original state and the grain size is non-uniform. A clear boundary presents between the refined area and center area. In contrast, the copper grains in the radial profiles have been significantly refined. In the center area of the copper, the grains are bigger than those at the boundary. On the surface of the deformable body, the grain size is the smallest, but with irregular grain morphology. After the product is entirely extruded, all the copper and aluminum grains are refined with small and uniform morphology. In the center area, the average diameter of aluminum grains is smaller than 5 μm, and the copper grain on the surface is about 10 μm. At the interface, the grain size is very small, with a good combination of copper and aluminum. The thickness of interface is in the range of 10–15 μm. Energy spectrum analysis shows that CuAl$_{3}$ phase presents at the interface.
Starting Page	1013
Ending Page	1017
Page Count	5
File Format	PDF
ISSN	10059784
Journal	Journal of Central South University of Technology
Volume Number	18
Issue Number	4
e-ISSN	19930666
Language	English
Publisher	Central South University
Publisher Date	2011-07-10
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	aluminum/copper clad composite casting cold extrusion microstructure Metallic Materials Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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