NSUF 15-543: Microstructural and nanomechanical characterization of a lanthana-bearing nanostructured ferritic steel irradiated with high dose iron irons

The project aims to investigate the microstructure and mechanical properties of the self-ion irradiated 14LMT alloy. The 14LMT alloy has been developed as a lanthanum-bearing nanostructured ferritic steel for fast reactor fuel cladding materials applications. A mechanical alloying followed by spark plasma sintering was used to create this alloy. In the past, significant research has been conducted in understanding the microstructure and hardness properties of the unirradiated and ion irradiated (up to 100 dpa) 14LMT alloy. The proposed project plans to study the microstructure and nanohardness properties of the 14LMT alloy specimens (iron)ion irradiated up to 400 dpa. The characterization instruments available at the CAES-MaCS facility such as the FIB-SEM, LEAP and STEM will be utilized to accomplish the objectives of the project. Particular emphasis will be placed to understand the damage evolution and their consequent influence on the mechanical property. The instrument-usage part of the research is expected to complete within two weeks.

Additional Info

Field Value
Awarded Institution University of Idaho
Embargo End Date 2026-02-27
Facility Tech Lead Mukesh Bachhav, Noé Morales
NSUF Call FY 2015 RTE 1st Call
PI Indrajit Charit
Project Member Indrajit Charit, Associate Professor - University of Idaho (https://orcid.org/0000-0002-3854-2900)
Project Member Professor Lin Shao, Professor - Texas A&M University (https://orcid.org/0000-0002-5703-1153)
Project Type RTE
Publication Sintering Behavior of Lanthana-Bearing Nanostructured Ferritic Steel Consolidated via Spark Plasma Sintering Darryl Butt, Indrajit Charit, James Cole, Somayeh Pasebani, Yaqiao Wu Advanced Engineering Materials 18 2015-08-03 http://onlinelibrary.wiley.com/doi/10.1002/adem.201500294/abstract ; https://doi.org/10.1002/adem.201500294
Publication Lanthana-bearing nanostructured ferritic steels via spark plasma sintering SULTAN ALSAGABI, Darryl Butt, Indrajit Charit, James Cole, Somayeh Pasebani, Yaqiao Wu Journal of Nuclear Materials 470 2016-03-01 http://www.sciencedirect.com/science/article/pii/S0022311515304049
Publication Microstructural stability of a self-ion irradiated lanthana-bearing nanostructured ferritic steel SULTAN ALSAGABI, Darryl Butt, Indrajit Charit, James Cole, Somayeh Pasebani, Lin Shao Journal of Nuclear Materials 462 2015-07-01 https://www.sciencedirect.com/science/article/pii/S0022311515001877
Publication A Preliminary Investigation of High Dose Ion Irradiation Response of a Lanthana-Bearing Nanostructured Ferritic Steel Processed via Spark Plasma Sintering Somayeh Pasebani, Indrajit Charit, Yaqiao Wu, Darryl Butt, James Cole, Lin Shao Journal of Nuclear Materials 495 2017-08-07 https://doi.org/10.1016/j.jnucmat.2017.08.010
Publication Mechanical Alloying of Lanthana-Bearing Nanostructured Ferritic Steels Darryl Butt, James Cole, Somayeh Pasebani, Yaqiao Wu, Indrajit Charit Acta Materialia 61 2013-07-01 http://www.sciencedirect.com/science/article/pii/S1359645413004230
RTE Number 543