Spheroidization mechanism of primary silicon in hypereutectic Al–Si alloys with Eu addition
Henan University of Science and Technology · Luoyang Institute of Science and Technology · +2 more institutions
Abstract
Abstract In this study, the effects of Eu addition on the microstructures and mechanical properties of A390 alloy were investigated, along with the spheroidization mechanism of primary silicon with Eu. The results showed that when the Eu addition reached 0.6 wt%, both refinement and spheroidization of primary silicon, alongside fibrous eutectic silicon can be obtained. Owing to such a microstructural modification, the ultimate tensile strength and elongation were increased by 24.9% and 101.2%, respectively. While in the unmodified alloy, the octahedral, plate‐like, and five‐star primary silicon particles exhibited few Σ3 twin boundaries, whereas in the Eu‐modified alloy, spheroidal primary silicon displayed…
Citation impact
- FWCI
- 271.07
- Percentile
- 100%
- References
- 58
Authors
10- FMFeng MaoCorresponding
Henan University of Science and Technology, Luoyang Institute of Science and Technology
- JGJunliang Guo
Henan University of Science and Technology, Luoyang Institute of Science and Technology
- SLSonghao Liu
Henan University of Science and Technology, Luoyang Institute of Science and Technology
- LZLongbo Zhang
Henan University of Science and Technology, Luoyang Institute of Science and Technology
- AGAnzu Guo
Henan University of Science and Technology, Luoyang Institute of Science and Technology
Topics & keywords
- Materials science
- Mechanism (biology)
- Silicon
- Metallurgy
- Primary (astronomy)