2012 ACCOMPLISHMENTS - TRITIUM AGING STUDIES ON STAINLESS STEELS

Morgan, M.

关键词: Mechanical Properties;    Type 304L Stainless Steel;    Type 316L Stainless Steel;    Type 21-6-9 Stainless Steel;    Hydrogen Embrittlement;    J-Integral;    Helium Embrittlement;   

DOI  :  10.2172/1062173
RP-ID  :  SRNL-STI-2013-00048
PID  :  OSTI ID: 1062173

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This report summarizes the research and development accomplishments during FY12 for the tritium effects on materials program. The tritium effects on materials program is designed to measure the long-term effects of tritium and its radioactive decay product, helium-3, on the structural properties of forged stainless steels which are used as the materials of construction for tritium reservoirs. The FY12 R&D accomplishments include: (1) Fabricated and Thermally-Charged 150 Forged Stainless Steel Samples with Tritium for Future Aging Studies; (2) Developed an Experimental Plan for Measuring Cracking Thresholds of Tritium-Charged-and-Aged Steels in High Pressure Hydrogen Gas; (3) Calculated Sample Tritium Contents For Laboratory Inventory Requirements and Environmental Release Estimates; (4) Published report on ???Cracking Thresholds and Fracture Toughness Properties of Tritium-Charged-and-Aged Stainless Steels???; and, (5) Published report on ???The Effects of Hydrogen, Tritium, and Heat Treatment on the Deformation and Fracture Toughness Properties of Stainless Steels???. These accomplishments are highlighted here and references given to additional reports for more detailed information.