NSUF 23-4567: Dual Ion Beam Irradiation and Post-Irradiation-Examinations of Alumina Coating on Stainless Steel

Development of high-performance nuclear components is a crucial objective to achieve the lifetime extension of the existing nuclear fleet and boost the deployment of emerging advanced reactor technologies. Austenitic stainless steels, particularly type 316, have been used extensively as a structural material for nuclear reactors because of their relatively low cost and high corrosion resistance, excellent processability, and high temperature stability. However, they suffer from severe corrosion attack in liquid metals and molten salts above 500oC. To improve their corrosion resistance, surface modification of the steel surface with Al2O3 is promising. Therefore, there is a strong need to evaluate the irradiation tolerance of Al-based coatings. For this purpose, the proposed project is designed to perform the irradiation of Al2O3-coating formed on stainless steel 316L through a combined electrodeposition and subsequent thermal treatment approach, and to conduct post-irradiation-examination (PIE) studies. The dual beam high-dose irradiation based on aluminum ions and helium ions, is likely to produce significant structural changes within the coating layer and across the coating-substrate interface. The formation of dislocation loops, cavities, or component precipitation, and the mechanical property changes of the samples can be disclosed through the advanced characterization of the control sample and irradiated samples with state-of-the-art techniques. Furthermore, the changes of the corrosion resistance to corrosive media for the irradiated samples will also be evaluated in this project.

Допълнителна информация

Поле	Стойност
Awarded Institution	Idaho National Laboratory
Embargo End Date	2024-11-08
Facility Tech Lead	Lin Shao, Mukesh Bachhav
Irradiation Facilities	Accelerator Laboratory
NSUF Call	FY 2023 RTE 1st Call
PI	Junhua Jiang
PIE Facilities	Microscopy and Characterization Suite
Project Member	Professor Lin Shao, Professor - Texas A&M University (https://orcid.org/0000-0002-5703-1153)
Project Member	Dr. Yaqiao Wu, Research Professor - Boise State University
Project Member	Dr. Junhua Jiang - Savannah River National Laboratory (https://orcid.org/0000-0003-2437-9812)
Project Type	RTE
RTE Number	4567