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Optimizing the Melt Treatment of Piston Alloys Using Thermal Analysis Technique
Technical Paper
2004-01-1023
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The effects of Cu-P and Al-Sr master alloys as strong modifiers have been investigated on the microstructure of commercial Al-Si (12-13%Si) alloys. Thermal analysis has been employed to examine the morphological changes of Si particles and identify the optimum concentration of P and Sr to achieve fine and well-distributed eutectic and primary silicon structures.
Additions of 0.05% to 0.075% P or Sr have been found to yield the most optimum modification and refining of the structure. The results show that the variation in nucleation temperature of primary phase and the eutectic temperature are the most important parameters.
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Authors
- Shahrooz Nafisi - Center for University Research on Aluminum, CURAL, University of Quebec at Chicoutimi
- Reza Ghomashchi - Center for University Research on Aluminum, CURAL, University of Quebec at Chicoutimi
- Jalal Hedjazi - Iran University of Science and Technology, Material and Metallurgical Dept.
- S. M. A. Boutorabi - Iran University of Science and Technology, Material and Metallurgical Dept.
Citation
Nafisi, S., Ghomashchi, R., Hedjazi, J., and Boutorabi, S., "Optimizing the Melt Treatment of Piston Alloys Using Thermal Analysis Technique," SAE Technical Paper 2004-01-1023, 2004, https://doi.org/10.4271/2004-01-1023.Also In
Advances in Lightweight Automotive Castings and Wrought Aluminum Alloys
Number: SP-1838; Published: 2004-03-08
Number: SP-1838; Published: 2004-03-08
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