NSUF 12-381: Studying the role of alloying elements on the microstructure of nanostructured ferritic steels fabricated via pulsed electric current sintering
Nanostructured ferritic steels (NFS) have shown outstanding high temperature tensile and creep strength, and great potential for enhanced radiation damage tolerance. The excellent properties of NFS primarily derive from the presence of fine Y-Ti-O based nanofeatures. A new NFS alloy form based on lanthana (lanthanum oxide) has been developed under a project funded by INL/CAES-LDRD, using a processing route involving mechanical alloying followed by pulsed electric current sintering (PECS). The goal of the proposed research is to examine the effect of lanthana and PECS parameters on the alloy microstructure. In order to meet the objective, it is essential to characterize the alloy to a fine detail that requires the use of state-of-the-art characterization tools available at CAES microscopy suite. The microstructure of the alloys will be characterized using STEM and APT to understand the formation of La-Ti-O based nanofeatures. SEM/EBSD technique will be used to study the grain structure and microtexture. The proposed project is expected to be completed within a period of 2 months. If successful, this will lead to the development of a new breed of lanthana containing NFS for advanced reactor use. The data generated in this work will be disseminated widely through journal and conference publications.
ข้อมูลเพิ่มเติม
| ฟิลด์ | ค่า |
|---|---|
| Awarded Institution | University of Idaho |
| Embargo End Date | 2026-02-27 |
| Facility Tech Lead | Mukesh Bachhav |
| NSUF Call | FY 2012 RTE Solicitation |
| PI | Indrajit Charit |
| Project Member | Indrajit Charit, Associate Professor - University of Idaho (https://orcid.org/0000-0002-3854-2900) |
| Project Member | Dr. Darryl Butt, Dean - University of Utah |
| Project Type | RTE |
| Publication | Effect of alloying elements on the microstructure and mechanical properties of nanostructured ferritic steels produced by spark plasma sintering Indrajit Charit, Somayeh Pasebani Journal of Alloys and Compounds 599 2014-06-25 http://www.sciencedirect.com/science/article/pii/S0925838814003351#ak005 |
| RTE Number | 381 |