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Characterization of the A6060 Al Alloy Mainly by Using the Micro-Hardness Vickers Test in Order to Optimize the Industrial Solutionizing Conditions of the As-Cast Billets

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ABSTRACT
Heat treatable Al alloys of the 6xxx series are produced by the industry following a path that consolidates melting of raw materials, casting the melt in billets, solutionizing the billets following a suitable thermal cycle, pre-heating and extruding the material to profiles and finally aging the profiles. Although this procedure is known for pure materials from the scientific point of view, the introduction of scrap to the raw materials for melting modifies to an extent the fabrication conditions that follow casting. This fact affects the production cost. In this article we propose a research way based mainly on micro-Vickers tests that lead to an optimization of the treatment conditions for solutionizing the billets.
 
Cite this paper
Triantafyllidis, G. , Kiligaridis, I. , Zagkliveris, D. , Orfanou, I. , Spyridopoulou, S. , Mitoudi-Vagourdi, E. and Semertzidou, S. (2015) Characterization of the A6060 Al Alloy Mainly by Using the Micro-Hardness Vickers Test in Order to Optimize the Industrial Solutionizing Conditions of the As-Cast Billets. Materials Sciences and Applications, 6, 86-94. doi: 10.4236/msa.2015.61011.
 
References
[1]Hatch, E.J. (1999) Aluminum: Properties and Physical Metallurgy. 9th Printing, American Society for Metals.
 
[2]Bahrami, A. (2010) Modeling of Precipitation Sequence and Aging Kinetics in Al-Mg-Si Alloy. Sharif University of Technology, Tehran.
 
[3]Fjeldbo, S.K., Li, Y.J., Marthinsen, K. and Furu, T. (2012) Through-Process Sensitivity Analysis on the Effect of Process Variables on Strength in Extruded Al-Mg-Si Alloys. Journal of Materials Processing Technology, 212, 171-180.
http://dx.doi.org/10.1016/j.jmatprotec.2011.08.020
 
[4]Andersen, S.J., Marioara, C.D., Vissers, R., Froeseth, A. and Zandbergen, H.W. (2007) The Structural Relation between Precipitates in Al-Mg-Si Alloys, the Al-Matrix and Diamond Silicon, with Emphasis on the Trigonal Phase U1-MgAl2Si2. Materials Science and Engineering, A444, 157-169.
http://dx.doi.org/10.1016/j.msea.2006.08.084
 
[5]Sheppard, T. (1999) Extrusion of Aluminum Alloys. Kluwer Academic Publishers, Norwell.
http://dx.doi.org/10.1007/978-1-4757-3001-2
 
[6]ASM Specialty Handbook (2002) Aluminum and Aluminum Alloys, Fabrication and Finishing of Aluminum Alloys. 5th Printing, ASM International, Russell Township.                                                          eww150123lx
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