Effects of Heat Treatment on Strength and Ductility of Rolled and Forged Aluminum 6063 Alloy
- 1 Department of Metallurgical and Materials Engineering
- 2 Department of Metallurgical and Materials Engineering
- 3 Department of Metallurgical and Materials Engineering
- 4 Department of Chemical Engineering University of Lagos, Akoka -Yaba, Lagos, Nigeria
Abstract
This work examines the effect of heat treatment on tensile strength and ductile responses of rolled and forged AA6063 aluminum alloy. Some cast samples were rolled while some were forged at ambient temperature (32℃). The deformed samples were subjected to heat treatment processes. The tensile strengths of rolled (212 MPa) and forged (127 MPa) samples are enhanced at ambient temperature but with poor elongation responses. A combination of improved strength and elongation (127 MPa, 24%) can be obtained in rolled sample when solution heat treatment (SHT) is applied after deformation and cooling in water. The forged sample when homogenized, solution treated and water quenched has elongation of about 24% with improved strength of 137 MPa. These results were obtained because of the development of very fine AlFeSi texture in the matrix and along the grain boundaries.
- Jay Keist, (2005): Development of fludized bed system for the heat treatment of aluminum alloys, Journal of materials, 2005, 36.
- Y. Totik?, R. Sadeler, I. Kaymaz, M. Gavgali ( 2003) :The effect of homogenisation treatment on cold deformations of AA 2014 and AA 6063 alloys, Journal of Materials Processing Technology 147 (2004) 60–64, October 2003.
- S. Zajac, B. Hutchinson, A. Johanson, L.O. Gullman, R. Lagneborg (1993): Microstructure control and extrudability of Al-Mg-Si alloys, microalloyed with manganese, J. Physique 3 (7) (1993) 251-254.
- I. Musulin, O.C. Celliers (1990): Role of manganese in 6063 alloy and effect of quench sensitivity in 6063, in: Proceedings of the TMS Annual Meeting on Light Metal, Vol. 119, Minerals Metal and Material Society (TMS), Warrendle, PA, 1990, pp. 951-954.
- Sanmbo A. Balogun, David E. Ezesobor, Samson O. Adeosun (2007): Effect of deformation processing on the mechanical properties of Aluminum alloy 6063, Metallurgical and Material Transactions A, Volume 38, Pg 1570-1574, July 2007.
- M. Gavgali, Y. Totik, R. Sadeler ( 2003) :The effect of Artificial Aging on wear properties of AA6063 Alloy, Materials Letters 57 (2003) 3713– 3721
- Rafiq A. Siddiqui, Hussein A. Abdullah, Khamis R. Al-Belushi ( 2000) :Influence of aging parameters on the mechanical properties of 6063 aluminum alloy, Journal of Materials Processing Technology 102 (2000) 234±240.
- G. Al-Marahleh (2006): “Effect of heat treatment on the distribution and volume fraction of Mg 2 Si in Structural Aluminum Alloy 6063.” Journal of Metal Sciences and Heat treatment Vol.48, Nos 5-6, Pg. 17-21.