Grain-structure evolution of brazing-treated A4343/A3003/A4343 aluminum brazing sheets rolled with different reductions

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• 作者：Su-Hyeon Kim (1)
  Joo-Hee Kang (1)
  Kwangjun Euh (1)
  Hyoung-Wook Kim (1)
  
  1. Light Metal Division ; Korea Institute of Materials Science ; 797 Changwondaero ; Seongsan-gu ; Changwon ; Gyeongnam ; Republic of Korea
  
• 关键词：brazing ; microstructure ; electron backscattering diffraction (EBSD) ; rolling ; epitaxy
• 刊名：Metals and Materials International
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：21
• 期：2
• 页码：276-285
• 全文大小：1,616 KB
• 参考文献：1. Turriff, D. M., Corbin, S. F., Kozdras, M. (2010) Acta Mater. 58: pp. 1332 CrossRef
  2. Tu, Y., Tong, Z., Jiang, J. (2013) Metall. Mater. Trans. A 44: pp. 1760 CrossRef
  3. Zhao, H., Sekulic, D. P. (2006) Heat Mass Transfer 42: pp. 464 CrossRef
  4. Marshall, G. J., Bolingbroke, R. K., Gray, A. (1993) Mater. Trans. A 24: pp. 1935 CrossRef
  5. Lacaze, J., Tierce, S., Lafont, M. C., Thebault, Y., Pebere, N., Mankowski, G., Blanc, C., Robidou, H., Vaumousse, D., Daloz, D. (2005) Mater. Sci. Eng. A 413鈥?14: pp. 317 CrossRef
  6. Yoon, J. S., Lee, S. H., Kim, M. S. (2001) J. Mater. Proc. Tech. 11: pp. 85 CrossRef
  7. Lee, S. H., Yoon, J. S., Kim, M. S., Jung, D. (2002) Met. Mater. Int. 8: pp. 227 CrossRef
  8. Ryu, J. S., Kim, M. S., Jung, D. (2002) J. Mater. Proc. Tech. 130: pp. 240 CrossRef
  9. Suzuki, H., Itoh, G., Koyama, K. (1984) J. Japan Inst. Light Met. 34: pp. 708 CrossRef
  10. Tohma, K., Asano, M., Takeuchi, Y. (1987) J. Japan Inst. Light Met. 37: pp. 119 CrossRef
  11. Movahedi, M., Kokabi, A. H., Madaah-Hosseini, H. R., Kiani, M. (2011) Met. Mater. Int. 17: pp. 665 CrossRef
  12. Jeong, E. W., Hui, K. N., Bae, D. H., Bae, D. S., Cho, Y. R. (2014) Met. Mater. Int. 20: pp. 499 CrossRef
  13. Lee, S. E., Lee, K. S., Kim, M. J., Kwon, Y. N. (2014) Kor. J. Met. Mater. 52: pp. 605
  14. Kang, J. H., Kim, S. H. (2010) Kor. J. Met. Mater. 48: pp. 730
  15. Githinji, D. N., Northover, S. M., Bouchard, P. J., Rist, M. A. (2013) Metall. Mater. Trans. A 44: pp. 4150 CrossRef
  16. Wright, S. I., Nowell, M. M., Field, D. P. (2011) Microsc. Microanal. 17: pp. 316 CrossRef
  17. Farahany, S., Ourdjini, A., Bakar, T. A. A., Idris, M. H. (2014) Met. Mater. Int. 20: pp. 929 CrossRef
  18. Beck, P. A., Sperry, P. R. (1950) J. Appl. Phys. 21: pp. 150 CrossRef
  19. Balluffi, R. W., Cahn, J. W. (1981) Acta Metall. 29: pp. 493 CrossRef
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Metallic Materials
  Operating Procedures and Materials Treatment
  
• 出版者：The Korean Institute of Metals and Materials, co-published with Springer Netherlands
• ISSN：2005-4149

文摘

The grain-structure evolution of three-layered A4343(clad)/A3003(core)/A4343(clad) aluminum brazing sheets was studied by means of electron backscatter diffraction. Three different samples were prepared by cold rolling with 17%, 22%, and 44% reduction, and the brazing treatment was carried out in form of differential scanning calorimetry. Orientation maps of the clad and the core suggested that the grains in the melted and re-solidified clad did not grow epitaxially from the core in case of the 17% and 22% cold-rolled samples. In contrast, the grains in the 44% cold-rolled sample seemed to have been formed by epitaxial growth from the core. Kernel average misorientation (KAM) analysis revealed that the samples cold rolled with 17% and 22% reduction retained a deformed microstructure in the core even after the brazing treatment, but the core of the 44% cold-rolled sample was composed of coarse elongated grains, free from any substructure. The dissolution depth corresponding to the thickness of the core affected by the brazing treatment was proportional to the average KAM of the core.