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.

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Abstract 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.
Award Announced Date 2014-12-04T00:00:00
Awarded Institution Idaho National Laboratory
Facility ATR Critical Facility
Facility Tech Lead Alina Zackrone, Yaqiao Wu
Irradiation Facility None
PI Indrajit Charit
PI Email [email protected]
Project Type RTE
RTE Number 543