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.
Bao De Sun
Professor Jiawei Mi J.Mi@hull.ac.uk
Professor of Materials
Patrick S. Grant
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.
|Journal Article Type||Article|
|Publication Date||Aug 2, 2010|
|Journal||Materials Science Forum|
|Publisher||Trans Tech Publications|
|Peer Reviewed||Peer Reviewed|
|APA6 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. doi:10.4028/www.scientific.net/msf.654-656.958|