| Full text | |
| Author(s): |
Silva, Cassio
;
Barros, Andre
;
Rodrigues, Adilson Vitor
;
Kakitani, Rafael
;
Soares, Thiago
;
Garcia, Amauri
;
Cheung, Noe
Total Authors: 7
|
| Document type: | Journal article |
| Source: | SUSTAINABILITY; v. 14, n. 21, p. 20-pg., 2022-11-01. |
| Abstract | |
One of the greatest challenges facing the recycling of Al-based alloys is handling Fe incorporation. The formation of Fe-rich phases has negative impacts on the mechanical behavior and may limit the usage of recycled alloys. In this context, V addition is regarded as a potential solution since it can inhibit the formation of such phases. However, the microstructure evolution of V-modified Al-based alloys is not fully understood, especially when different solidification cooling regimes are considered. Thus, this work investigates the microstructure and tensile properties of an Al-7Si-1Fe [wt.%] alloy modified with a 0.5 wt.%V addition. Directionally solidified samples were produced and subjected to microstructure analysis and tensile tests. It was found that the addition of V reduces the fraction of beta-AlFeSi particles because of the formation of new V-rich phases. This was determinant to improve the tensile properties for faster cooling conditions during solidification. For moderate and slow cooling regimes, however, the V-containing alloy had a less favorable mechanical behavior due to the formation of larger beta-AlFeSi particles. Finally, quantitative relationships are proposed for the prediction of tensile properties from microstructural parameters using multiple linear regression analysis. (AU) | |
| FAPESP's process: | 21/11439-0 - Interrelationships between thermal parameters/solidification microstructures with wear resistance and hydrogen generation of Al-Sn-(Mg;Zn) alloys |
| Grantee: | Noe Cheung |
| Support Opportunities: | Regular Research Grants |