Skip to Content
Find More Like This
Return to Search

Creep-Resistant, Cobalt-Containing Alloys for High Temperature, Liquid-Salt Heat Exchanger Systems

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
An essentially Fe-free alloy consists essentially of, in terms of weight percent: 4 to 11 Co, 6.5 to 7.5 Cr, 0 to 0.15 Al, 0.5 to 0.85 Mn, 11 to 20 Mo, 1 to 3.5 Ta, 0.05 to 9 W, 0.03 to 0.08 C, 0 to 0.001 B, 0.0005 to 0.005 N, balance Ni, the alloy being characterized by, at C., a yield strength of at least 25 Ksi, a tensile strength of at least 45 Ksi, a creep rupture life at 12 Ksi of at least 10 hours, and a corrosion rate, expressed in weight loss [g(cm.sup.2sec)]10.sup.-11 during a 1000 hour immersion in liquid FLiNaK at C., in the range of 5 to 20.
Holcomb, David E. (Oak Ridge, TN), Muralidharan, Govindarajan (Knoxville, TN), Wilson, Dane F. (Oak Ridge, TN)
13/ 958,672
August 5, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] The United States Government has rights in this invention pursuant to contract no. DE-ACO5-000R22725 between the United States Department of Energy and UT-Battelle, LLC.