Mechanical Performance of a Cast A354 Aluminium Alloy

Abstract:

Cast aluminum alloys are an important group of materials which find wide application in the automotive industry. Insufficient studies have been carried out to date with regard to the mechanical performance of the aged A354 alloy. Therefore, the present work investigates the Quality index charts with the purpose of setting the limits of the tensile properties, as well as for comparing the mechanical behavior of cast alloy A354, to delineate the effect of the solution treatment applied. Tensile properties upon artificial aging in the temperature range of 155–350^oC for times ranging from 2 to 100 hours are also investigated. The results showed that the use of quality index charts is a satisfactory method for presenting tensile test results and, for assessing the effect of solution and aging treatment conditions subjected to the modified and grain-refined A354 alloys. It is also observed that the quality index, Q, is more sensitive to variations in the tensile ductility than to tensile strength.

• Periodical: Materials Science Forum (Volumes 794-796)
• Pages: 489-494
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.794-796.489
• Online since: June 2014
• Authors: J.H. Sandoval, Adel M.A. Mohamed*, S. Valtierra, F.H. Samuel
• Keywords: Artificial Aging, Cast A354 Aluminum Alloy, Quality Index, Tensile Properties

References

[1] C.H. Cáceres, M.B. Djurdjevic, T.J. Stockwell and J.H. Sokolowski, The effect of Cu content on the level of microporosity in Al-Si-Cu-Mg casting alloys, Scripta Materialia, 40(1999) 631-637.

DOI: 10.1016/s1359-6462(98)00492-8

[2] E. Sjölander,S. Seifeddine, The heat treatment of Al-Si-Cu-Mg casting alloys, Materials Processing Technology, 210(2010) 1249-4259.

DOI: 10.1016/j.jmatprotec.2010.03.020

[3] A.M.A. Mohamed, A.M. Samuel, F.H. Samuel, H.W. Doty, Influence of additives on the microstructure and tensile properties of near-eutectic Al–10. 8%Si cast alloy, Materials and Design, 30(2009) 3943–3957.

DOI: 10.1016/j.matdes.2009.05.042

[4] C.H. Cáceres, I.L. Svensson, J.A. Taylor, Strength-ductility behaviour of Al-SiCuMg casting alloys in T6 temper, International Journal of Cast Metals Research, 15(2003) 531-543.

DOI: 10.1080/13640461.2003.11819539

[5] M. Drouzy, S. Jacob, M. Richard, Interpretation of tensile results by means of quality index and probable yield strength, AFS International Cast Metals Journal, 5(1980) 43-50.

[6] C.H. Caceres, T. Din, A.K.M.B. Rashid, J. Campbell, Effect of ageing on quality index of an Al-Cu casting alloys, Journal of Materials Science and Technology, 15(1999) 711-716.

DOI: 10.1179/026708399101506319

[7] C.H. Cáceres, Microstructure design and heat treatment selection for casting alloys using the quality index", ASM-IMS Meeting, October 1-4, Cincinnati, (1999).

[8] C.H. Caceres, Economical and environmental factors in light alloys automotive applications, Metallurgical and Materials Transactions A, 38A(2007) 1649-1662.

DOI: 10.1007/s11661-007-9156-z

[9] C.H. Cáceres, Transient environmental effects of light alloy substitutions in transport vehicles, Materials and Design, 30(8)(2009) 2813-2822.

DOI: 10.1016/j.matdes.2009.01.027

[10] W. Reif, J. Dutkiewiewicz, R. Ciach, Effect of precipitates in Al-Si-Cu-Mg alloys, Materials Science and Engineering A, 234(1997) 165-168.