Effect of Fine Grain on Mechanical Properties of A6N01 Alloy

Abstract:

The good formability and corrosion resistance of 6N01 Al alloy allow it to be utilized in high-speed train systems, and weight reduction of railway vehicles is possible by improving the strength of this alloy. This study examined the effect of the fine-grained structure on the mechanical properties of the alloy formed by a combination of heat treatment and severe plastic deformation such as forging and rolling. The role of the fine-grained structure in determining the plastic formability was also investigated. The 0.2% proof stress and tensile strength of the heat-treated and multi-axial alternative forging (MAF) processed materials were both greater than 300 MPa. Subsequent cold rolling of these alloys increased both the 0.2% proof stress and tensile strength to over 450 MPa with a grain size of less than 1 μm. The fine-grained structure was confirmed to be effective in improving the strength of the 6N01 Al alloy.

• Periodical: Materials Science Forum (Volume 753)
• Pages: 501-504
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.753.501
• Online since: March 2013
• Authors: Hiroaki Kusuhara, Munetoshi Noguchi, Masafumi Noda, Hisashi Mori, Kunio Funami
• Keywords: Rolling , A6N01 Alloy, Fine Grain, High Strength, Multi-Axial Alternative Forging, Severe Plastic Deformation (SPD)

References

[1] H. Mori and M. Noda, Journal of the Japan Society of Mechanical Engineers, 113-1104 (2010), 871-875.

[2] M. Noda, T. Mayama, and Y. Kawamura, Mater. Trans., 50-11 (2009), 2526-2631.

[3] M. Noda and H. Mori, ISBN 978-4-915957-52-9 C3053, Comprehensive overview of composite materials and their technology, (2011), 183-188.

[4] Z. Horita, Journal of Japan Institute of Light Metals, 60-3 (2010), 134-141.

[5] M. Noda, M. Hirohashi, Y. Suwahara and M. Kobayashi, Journal of the Japan Society of Mechanical Engineers, 66-2 (2003) 98-105.

[6] T. Nakamura, S. Iwama and S. Komatsu, Journal of Japan Institute of Light Metals, 58-12 (2008), 644-649.