Effect of Annealing Treatment on the Properties of Cold Rolled Copper Foil

Abstract:

Copper foils with 91% cold rolled deformation annealed at temperature between 140°C and 170 °C.The microstructures were observed by EBSD. The mechanical properties were measured at room temperature by tensile test machine and the fracture morphologies observed by SEM. After annealed at 150 °C, recrystallization begins to occur, while the elongation increases evidently and tensile strength decreases sharply. When the temperature rises to 170 °C, recrystallization is complete and the grain starts to grow. When the foils are annealed at 140 °C, it exhibits a strong cold rolling textures characterized by Brass {011}<211> and Cu {112}<111>. After annealed at 170 °C, there are olny weak Brass {011}<211> texture.

• Periodical: Materials Science Forum (Volume 921)
• Pages: 231-235
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.921.231
• Online since: May 2018
• Authors: Ke Bin Sun*, Yan Feng Li, Ye Xin Jiang, Guo Jie Huang, Xue Shuai Li, Qing An Sun, Xiang Qian Yin
• Keywords: Annealing Treatment, Copper Foil, Microstructure, Tension Properties

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