The present invention addresses the need for new austenitic steel compositions with higher creep strength and higher upper temperatures. The new austenitic steel compositions retain desirable phases, such as austenite, M.sub.23C.sub.6, and MC in its microstructure to higher temperatures. The present invention also discloses a methodology for the development of new austenitic steel compositions with higher creep strength and higher upper temperatures.
STATEMENT OF FEDERAL FUNDING
The United States government has rights to this invention pursuant to contract no. DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC. This invention was made under Cooperative Research and Development Agreement ("CRADA") ORNL 02-0632 between Duraloy Technologies, Inc. and UT-Battelle, LLC.