The Effect of Solidification Time and Solution-Treatment Time on the Tensile Properties of a Cast 319-T7 Aluminum Alloy

2007-01-1224

04/16/2007

Event
SAE World Congress & Exhibition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2007-01-1224
Pages
13
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.
Additional Details
Publisher
Published
Apr 16, 2007
Product Code
2007-01-1224
Content Type
Technical Paper
Language
English