| Issue |
E3S Web Conf.
Volume 185, 2020
2020 International Conference on Energy, Environment and Bioengineering (ICEEB 2020)
|
|
|---|---|---|
| Article Number | 04060 | |
| Number of page(s) | 6 | |
| Section | Chemical Engineering and Food Biotechnology | |
| DOI | https://doi.org/10.1051/e3sconf/202018504060 | |
| Published online | 01 September 2020 | |
Study on refine and morphology change of AlFeSi phase in A380 alloy by K addition
School of Mechanical and Electrical Engineering, Shenzhen Polytechnic, Shenzhen 518055 China
* Corresponding author’s e-mail: wangmeng04@szpt.edu.cn
Aluminum-Silicon (Al-Si) alloys are one of the most widely used aluminum alloys. But iron can severely deteriorate the mechanical property of Al-Si diecasting alloy because its presence leads to the precipitation of different AlFeSi intermetallic phases which damage the ductility of alloys. Thus controlling the fraction and morphology of AlFeSi phase, especially the β-AlFeSi phase is important way to refine the ductility of Al-Si die casting alloys. In this article, K element was added into A380 alloys to study the effect of K on the morphology change of AlFeSi phase. The results show that a certain level of K addition 0.05-0.1 wt% will refine β-AlFeSi and transform β-AlFeSi phase to α-AlFeSi. In addition, K addition can better refine AlFeSi at high ccoling rates. The mechanism of refinement of K on AlFeSi phase is analyzed.
© The Authors, published by EDP Sciences, 2020
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