Influence of Homogenization Annealing on Microstructure of Pure Aluminum cathode Foil Stock
[1]Zhao Hongliang,Wu Di,Weng Kangrong,et al.Influence of Homogenization Annealing on Microstructure of Pure Aluminum cathode Foil Stock[J].Journal of Zhengzhou University (Engineering Science),2016,37(02):42-45.[doi:10.3969/j.issn.1671-6833.201510047]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 02
Page number:
42-45
Column:
Public date:
2016-04-18
- Title:
- Influence of Homogenization Annealing on Microstructure of Pure Aluminum cathode Foil Stock
- CLC:
- -
- Abstract:
- Coarse and unevenly distributed second phases exist in cast-rolled pure aluminum-based negative electrode foil blanks, and homogenization annealing has an important influence on the size and distribution of second phases in the blank. The effects of annealing temperature and holding time on pure aluminum The effect of the size and distribution of the second phase in the cold-rolled blank of negative electrode foil. The results show that: when the holding time is 10 h, with the increase of annealing temperature, the curved band-shaped FeAl eutectic phase gradually dissolves and spheroidizes, and the strip-like β ( FeAlSi) phase decomposes into short rods, and when the temperature rises to 550 °C, the needle-like phase FeAl3 begins to precipitate; when the annealing temperature is 520 °C, with the extension of annealing time, the proportion of the coarse second phase decreases continuously, and then tends to The cold-rolled cast-rolled pure aluminum-based negative electrode foil blank with a cold-rolled deformation rate of 38.5% can obtain a relatively uniform structure after being annealed at 520°C for 10 h.
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