Effect of Mg Content on Age Hardening of an Extruded Al-Si-Mg-Mn Alloy

Bong Hwan Kim; Su Kwon Jung; Young Ok Yoon; Hyun Kyu Lim; Shae K. Kim

doi:10.4028/www.scientific.net/AMR.630.54

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 630Effect of Mg Content on Age Hardening of an...

Effect of Mg Content on Age Hardening of an Extruded Al-Si-Mg-Mn Alloy

Abstract:

The main task of this study was to investigate the effect of Mg content on hardness of extruded Al-Si-Mg-Mn alloy after solution and artificial ageing heat-treatments. The Al-Si-Mg-Mn alloys with the variation of Mg content were fabricated through casting, homogenization and extrusion processes. The extruded samples were heat-treated – T6 temper. Thermal analysis with metallurgical examination was performed in order to optimize the condition of solution heat-treatment. Then, microstructure change was discussed by using optical microscopy and SEM-EDS. And the corresponding Vickers hardness was measured as a function of ageing time. It was found that the Vickers hardness slightly increased due to improved ageing efficiency and increased hard phase as the Mg content increased.

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Periodical:

Advanced Materials Research (Volume 630)

Pages:

54-58

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.630.54

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Online since:

December 2012

Authors:

Bong Hwan Kim, Su Kwon Jung, Young Ok Yoon, Hyun Kyu Lim, Shae K. Kim

Keywords:

Age Hardening, Al-Si-Mg-Mn, Extrusion, Heat Treatment, Precipitation

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References

[1] N.C.W. Kuijpers, W.H. Kool, P.T.G. Koenis, K.E. Nilsen, I. Todd and S. van der Zwaag, Mater. Charact. 49 (2003) 409-420.

DOI: 10.1016/s1044-5803(03)00036-6

Google Scholar

[2] T. Sheppard, Extrusion of Aluminum Alloys, Kluwer Academic publishers, Dordrecht/Boston/London, (1999).

Google Scholar

[3] G. Mrowka-Nowotnik and J. Sieniawski, Influence of heat treatment on the microstructure and mechanical properties of 6005 and 6082 aluminium alloys, J. mater. Proc. Tech. 162-163 (2005) 367-372.

DOI: 10.1016/j.jmatprotec.2005.02.115

Google Scholar

[4] S.G. Shabestari, M. Keshavarz and M.M. Hejazi, Effect of strontium on the kinetics of formation and segregation of intermetallic compounds in A380 aluminum alloy, J. Alloys Compd., 477 (2009) 892-899.

DOI: 10.1016/j.jallcom.2008.11.037

Google Scholar

[5] B. Milkereit, M. Beck, M. Reich, O. Kessler and C. Schick, Precipitation kinetics of an aluminium alloy during Newtonial cooling simulated in a differential scanning caloimeter, Therm. Acta, 522 (2011) 86-95.

DOI: 10.1016/j.tca.2011.02.034

Google Scholar

[6] B.C. Shang, Z.M. Yin, G. Wang, B. Liu and Z.Q. Huang, Investigation of quench sensitivity and transformation kinetics during isothermal treatment in 6082 aluminum alloy, Mater. and Design, 32 (2011) 3818-3822.

DOI: 10.1016/j.matdes.2011.03.016

Google Scholar