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Effect of Ti and Ce Microalloy on Microstructure and Properties of Al-Si-Cu-Zr-Sr Cast Aluminum Alloy.
- Source :
- Journal of Wuhan University of Technology; Jun2023, Vol. 38 Issue 4, p897-902, 6p
- Publication Year :
- 2023
-
Abstract
- The effect of Ti and Ce microalloying on the mechanical properties of Al-9Si-3.5Cu-0.2Zr-0.1Sr cast aluminum alloy was investigated, and it was hoped that the cast aluminum alloy with excellent comprehensive properties could be obtained. On the basis of Zr-Sr microalloyed cast aluminum alloy (Al-9Si-3.5Cu-0.2Zr-0.1Sr), the effects of 0.2Zr-0.1Sr-0.16Ti ternary microalloying and 0.2Zr-0.1Sr-0.16Ti-0.1Ce quaternary microalloying on the microstructure and properties of the alloy were investigated. The experimental results show that compared with Zr-Sr microalloying, Zr-Sr-Ti microalloying and Zr-Sr-Ti-Ce microalloying can effectively refine the microstructure, improve the modification effect of Si phase, and promote the improvement of Al<subscript>2</subscript>Cu phase, thus improving the properties. The higher the degree of microalloying, the hardness is gradually increasing, but the electrical conductivity is gradually decreasing. Zr-Sr-Ti microalloying can increase the tensile strength of the alloy to 400.07 MPa and the elongation to 9.5%. Zr-Sr-Ti-Ce microalloying do not continue to improve the properties of the alloy, and the tensile strength and elongation after fracture decrease to a certain extent due to the addition of Ce. Therefore, the best comprehensive properties can be obtained by Zr-Sr-Ti microalloying (Al-9Si-3.5Cu-0.2Zr-0.1Sr-0.16Ti). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10002413
- Volume :
- 38
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Journal of Wuhan University of Technology
- Publication Type :
- Academic Journal
- Accession number :
- 165050102
- Full Text :
- https://doi.org/10.1007/s11595-023-2774-5