Abstract
The Al-Si alloy ingots used for the study were produced by diluting an Al-Si master alloy containing impurity Fe with pure Al. A type of micron-sized AlFeSi spherical microstructure was observed in the diluted alloy ingot. These spherical particles have an overall diameter range of 2.8â6.1 ”m, with polyhedral Al9Fe2Si2 particles inside and clusters of fine Si particles with sizes concentrated at 200â250 nm outside. During solidification, the AlFeSi atomic clusters in the alloy melt firstly form the polyhedral Al9Fe2Si2 and then a shell of fine Si particles. The internal polyhedral Al9Fe2Si2 particles and the external fine Si particles have different formation mechanisms, with the polyhedral Al9Fe2Si2 particles being dominated by faceted growth and the fine Si particles being dominated by finite growth after nucleation.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
