Abstract
Using atom probe tomography, the three-dimensional morphology and composition of nanoscale omega precipitates in a simple binary titanium-molybdenum alloy have been uniquely determined. The results include the average composition of the omega precipitates and the partitioning of Mo across the ω/β interfaces. These investigations also revealed compositional inhomogeneity within the nanoscale precipitates, with the presence of a Mo-rich core, presumably arising from the relatively slow rate of Mo rejection during isothermal growth of these omega precipitates.
| Original language | English |
|---|---|
| Pages (from-to) | 701-704 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 61 |
| Issue number | 7 |
| DOIs | |
| State | Published - Oct 2009 |
Funding
This work was supported in part by the National Science Foundation, Division of Materials Research, under award number 6701956. The authors gratefully acknowledge the use of experimental facilities at the Center for Advanced Research and Technology (CART) at the University of North Texas and the Center for the Accelerated Maturation of Materials (CAMM) at the Ohio State University.
Keywords
- Atom probe tomography
- Mo-rich core
- Omega
- Titanium-molybdenum alloy