Abstract
Nucleation and growth of alpha precipitates during low-temperature annealing of Ti-10 at.% Mo-10 at.% Al alloy was investigated using direct coupling of transmission electron microscopy and atom probe tomography. The initial stages of annealing at 400 C showed structurally well-defined alpha precipitates that were depleted in Mo as well as Al, and were confined within the Ti-rich beta phase separated pockets. The Al-enriched alpha phase was only observed after further annealing at 600°C.
| Original language | English |
|---|---|
| Pages (from-to) | 513-516 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 69 |
| Issue number | 7 |
| DOIs | |
| State | Published - Oct 2013 |
| Externally published | Yes |
Funding
The National Science Foundation (Grant Nos. 6701956 , 0700828 , and 0846444 ) and a US Air Force Research Laboratory ISES contract funded this work. The authors gratefully acknowledge the use of experimental facilities at the Center for Advanced Research and Technology (CART) at the University of North Texas. A portion of this research was conducted at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOE’s Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL), and is part of the Chemical Imaging Initiative conducted under the Laboratory Directed Research and Development Program at PNNL. PNNL is operated by Battelle for the DOE under contract DE-AC05-76RLO1830.
| Funders | Funder number |
|---|---|
| National Science Foundation | 0700828, 0846444, 6701956 |
| U.S. Department of Energy | |
| Biological and Environmental Research | |
| Air Force Research Laboratory | |
| Pacific Northwest National Laboratory | DE-AC05-76RLO1830 |
Keywords
- Atom probe tomography
- Phase transformations
- Three-dimensional atom probe (3DAP)
- Titanium alloys
- Transmission electron microscopy (TEM)