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U.S. Department of Energy
Office of Scientific and Technical Information

EFFECT OF 1200 F SODIUM ON AUSTENITIC AND FERRITIC STEELS. PHYSICAL PROPERTIES OF MATERIALS. Progress Report No. 25, September 1962

Technical Report ·
DOI:https://doi.org/10.2172/4764155· OSTI ID:4764155
Results are of a prelimnary nature at this time, but the sodium and air stress-to-rupture tests with 316 stainless steel specimens show excellent agreement indicating no noticeable effect of sodium. The creep tests of 316 stainless steel specimens resulted in higher creep rates in sodium than in air, which may indicate the shape of the creep curve to be differert in sodium than in air. The fatigue tests are not complete but preliminary results indicate Type 318 stainless steel has a longer fatigue life in helium and sodium than in air, especially under lower cyciic strain. The Cr-Mo steel stress rupture results show a slight difference between the air and sodium tests with indications that sodium might be expected to shorten the stress rupture life of 21/4 Cr--1 Mo steel at these high temperatures. Higher creep rates were also experienced in sodium than in air, indicating the possibility of differert shaped creep curves in sodium than in air. The fatigue tests show no difference between sodium and helium tests but both show longer fatigue life than tests in air. (R.J.S.)
Research Organization:
MSA Research Corp., Callery, Penna. (US)
Sponsoring Organization:
US Atomic Energy Commission (AEC)
NSA Number:
NSA-17-003425
OSTI ID:
4764155
Report Number(s):
MSAR-62-126
Country of Publication:
United States
Language:
English