Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1500584 | Scripta Materialia | 2009 | 4 Pages |
Abstract
Trace boron additions to the β titanium alloy Ti–15Mo–2.6Nb–3Al–0.2Si (wt.%) lead to significant grain refinement of the as-cast microstructure and precipitation of TiB whiskers along the grain boundaries. The TiB is very effective in restricting the β grain boundary mobility by Zener pinning. A model is developed to predict the maximum grain size as a function of TiB size, orientation and volume fraction. Good agreement between model predictions and experimental results was obtained.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
B. Cherukuri, R. Srinivasan, S. Tamirisakandala, D.B. Miracle,