NSUF 24-5020: Elemental effects on radiation damage in tempered martensitic steels neutron irradiated to high doses at fast reactor relevant temperatures

Embrittlement of tempered martensitic (TM) steels is a key issue for their use in several advanced reactor concepts. PNNL has access to multiple TM steels irradiated in FFTF from 370-500°C with variations in C, Si, Mn, Ni, V, Cr, Mo, and N which all affect microstructure during irradiation. We will analyze mechanical properties and microstructure of selected TM steels to quantify the effects of elemental variations on radiation-induced precipitate formation and mechanical properties.

Tilleggsinformasjon

Felt	Verdi
Awarded Institution	Pacific Northwest National Laboratory
CINR Number	24-31447
Embargo End Date	2032-04-16
Facility Tech Lead	Alex Long, Mukesh Bachhav, Peter Hosemann
NSUF Call	FY 2024 CINR
PI	Mychailo Toloczko
PIE Facilities	Microscopy and Characterization Suite
Project Member	Dr. Stuart Maloy, Senior Nuclear Materials Adviser - Pacific Northwest National Laboratory (https://orcid.org/0000-0001-8037-1319)
Project Member	Mychailo Toloczko, Scientist - Pacific Northwest National Laboratory (https://orcid.org/0000-0003-3878-6101)
Project Member	Professor Peter Hosemann, Professor, - University of California-Berkeley (https://orcid.org/0000-0003-2281-2213)
Project Member	Dr. Donald Brown, Scientist - Los Alamos National Laboratory
Project Member	Dr. Yaqiao Wu, Research Professor - Boise State University
Project Member	Dr. Tarik Saleh, Scientist - Los Alamos National Laboratory (https://orcid.org/0000-0003-2108-4293)
Project Member	Danny Edwards, Scientist - Pacific Northwest National Laboratory (https://orcid.org/0000-0002-7676-490X)
Project Member	Mr. Ramprashad Prabhakaran, Scientist - Pacific Northwest National Laboratory (https://orcid.org/0000-0002-8117-2677)
Project Member	Dr. Kayla Yano, Materials Scientist - Pacific Northwest National Laboratory (https://orcid.org/0000-0002-8182-5439)
Project Type	CINR