Improving Brazeability of AA3003+Zn Brazing Aluminum Sheets by Final Annealing

Yi You Tu; Xiang Liang Liu; Min Da Zhang; Jian Jun Zhang

doi:10.4028/www.scientific.net/AMR.197-198.1555

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 197-198Improving Brazeability of AA3003+Zn Brazing...

Improving Brazeability of AA3003+Zn Brazing Aluminum Sheets by Final Annealing

Abstract:

Effect of intermediate annealing and final annealing on microstructures and properties of Al3003+Zn sheets is studied. The microstructure of aluminum sheets is observed by Optical Microscope and Transmission Electron Microscope，and the sagging resistance of aluminum sheets is tested by sagging test rig. The results indicate that complete recrystallization can be obtained after intermediate annealing at 380°C，and the recrystallization grain size of aluminum sheets reduces appreciably when annealing temperature rise. The sagging distance of aluminum sheets decreases proportionally with the grain size. Final annealing after final cold rolling eliminates subgrain structure of aluminum sheet, and improves sagging resistance of aluminum sheets observably.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

1555-1560

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.1555

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Online since:

February 2011

Authors:

Yi You Tu, Xiang Liang Liu, Min Da Zhang, Jian Jun Zhang

Keywords:

Brazing Aluminum Sheet, Final Annealing, Intermediate Annealing, Sagging Resistance

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