| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10635099 | Scripta Materialia | 2005 | 5 Pages |
Abstract
Metal-matrix composites based on boride reinforcements in a titanium base matrix have been deposited in situ from a powder feedstock consisting of a blend of Ti-alloy and elemental boron powders using the laser engineered net-shaping (LENSâ¢) process. These composites exhibit a homogeneous multi-scale microstructure consisting of micron to sub-micron as well as nanometer scale TiB precipitates in a metal matrix. While the coarser precipitates result from rapid solidification of the liquid, the nanometer-scale precipitates are likely to form from the solid-state decomposition of a boron supersaturated Ti-base matrix. Such nanometer-scale TiB precipitates can play a prominent role in determining the mechanical properties of these composites.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R. Banerjee, A. Genç, D. Hill, P.C. Collins, H.L. Fraser,