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The Effect of Solidification Time and Solution-Treatment Time on the Tensile Properties of a Cast 319-T7 Aluminum Alloy
Technical Paper
2007-01-1224
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
A study was conducted to examine the effect of solidification time and solution treatment time on the tensile properties of a 319-type aluminum alloy. Tensile samples with solidification times ranging from 0.3 to 35.5 minutes were solution-treated at 495 C for 8 hours and for 240 hours. All samples were then water-quenched and aged at 260 C for 4 hours. The tensile results show that solidification time and solution treatment time can have significant effects on the tensile properties. In general, as the solidification time increased, the ultimate strength, yield strength, and ductility decreased; increasing the solution-treatment time from 8 to 240 hours improved only the tensile strengths. The amount of Cu available in solid solution to precipitate during aging is found to be a key factor. Additionally, coarse microstructures require very long (and commercially-impractical) solution-treatment times to significantly improve the tensile strengths.
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Authors
- K. A. Kofeldt - Ford Motor Company Powertrain Operations
- J. M. Boileau - Ford Motor Company Research and Innovation Center
- J. W. Zindel - Ford Motor Company Research and Innovation Center
- L. A. Godlewski - Ford Motor Company Research and Innovation Center
- J. E. Allison - Ford Motor Company Research and Innovation Center
Citation
Boileau, J., Zindel, J., Godlewski, L., Allison, J. et al., "The Effect of Solidification Time and Solution-Treatment Time on the Tensile Properties of a Cast 319-T7 Aluminum Alloy," SAE Technical Paper 2007-01-1224, 2007, https://doi.org/10.4271/2007-01-1224.Also In
Advances in Lightweight Materials: Casting and Aluminum and Achieving Lightweight Vehicles
Number: SP-2105; Published: 2007-04-16
Number: SP-2105; Published: 2007-04-16
References
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