Effect of Si on AA5182 Strip Cast by a High Speed Twin Roll Caster

Abstract:

High speed roll casting of AA5182 aluminum alloy was tried using a vertical type high speed twin roll caster equipped with mild-steel rolls. Parting material was not used and speed was 80m/min. AA5182 strip, which thickness was 2.1mm, could be cast continuously. However, porosity occurred at center area at the thickness direction of the strip of the as-cast strip. Si was added to original AA5182 to improve the porosity at 0.2, 0.4, 0.6, 0.8 and 1.0 mass%. The porosity was improved as the content of the Si increased. The elongation resulting from the tension test was the best when 0.2mass%Si was added. The clack on the surface was improved by the increase of the Si content. Roll casting ability was improved by the Si, too.

• Periodical: Applied Mechanics and Materials (Volumes 184-185)
• Pages: 834-837
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.184-185.834
• Online since: June 2012
• Authors: Toshio Haga, Kosuke Komeda, Kenta Mtsuoka, Shinji Kumai, Hisaki Watari
• Keywords: AA5182, Roll Casting, Twin Roll Caster

References

[1] T. Haga, H. Watari, S. Kumai: Archives of Materials Science and Engineering, 15(2006), p.186.

[2] T. Haga, M. Ikawa, H. Watari, S. Kumai: ibid. 17(2006), p.337.

[3] T. Haga, M. Ikawa, H. Watari, S. Kumai, ibid. 18(2007), p.7.

[4] T. Haga, M. Matsuo, D. Kunigo, H. Hatanaka,S. Kumai, J. Achievements Materials & Manufacturing Engineering, 37(2009), p.172.