Refinement of TiB2 in Al-Ti-B grain refiner alloys by ultrasound and the effect on Al grain size

Shu, Da; Sun, Bao De; Mi, Jia Wei; Grant, Patrick S.

Abstract

High-intensity ultrasound was applied during the preparation of an Al-5Ti-1B master alloy when reacting fluoride salts with molten Al. The reaction rate was significantly increased with TiB2 particles of much reduced mean diameter and narrow width spread produced in ~4 minutes. The improved grain refining performance of the TiB2 in a commercial purity Al was studied and modelled using free growth model. The increased number and reduced size of TiB2 particles provided an enhanced grain refining capability.

Citation

Shu, D., Sun, B. D., Mi, J. W., & Grant, P. S. (2010). Refinement of TiB2 in Al-Ti-B grain refiner alloys by ultrasound and the effect on Al grain size. Materials Science Forum, 654-656, 958-961. https://doi.org/10.4028/www.scientific.net/msf.654-656.958

• Journal Article Type: Article
• Acceptance Date: Aug 2, 2010
• Publication Date: Aug 2, 2010
• Journal: Materials Science Forum
• Print ISSN: 0255-5476
• Publisher: Trans Tech Publications
• Peer Reviewed: Peer Reviewed
• Volume: 654-656
• Pages: 958-961
• DOI: https://doi.org/10.4028/www.scientific.net/msf.654-656.958
• Public URL: https://hull-repository.worktribe.com/output/405398