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Title: Low-cost Fe--Ni--Cr alloys for high temperature valve applications

An Fe--Ni--Cr alloy is composed essentially of, in terms of weight percent: 1 to 3.5 Al, up to 2 Co, 15 to 19.5 Cr, up to 2 Cu, 23 to 40 Fe, up to 0.3 Hf, up to 4 Mn, 0.15 to 2 Mo, up to 0.15 Si, up to 1.05 Ta, 2.8 to 4.3 Ti, up to 0.5 W, up to 0.06 Zr, 0.02 to 0.15 C, 0.0001 to 0.007 N, balance Ni, wherein, in terms of atomic percent: 6.5.ltoreq.Al+Ti+Zr+Hf+Ta.ltoreq.10, 0.33.ltoreq.Al/(Al+Ti+Zr+Hf+Ta).ltoreq.0.065, 4.ltoreq.(Fe+Cr)/(Al+Ti+Zr+Hf+Ta).ltoreq.10, the alloy being essentially free of Nb and V.
Inventors:
Issue Date:
OSTI Identifier:
1348374
Assignee:
UT-BATTELLE, LLC ORNL
Patent Number(s):
9,605,565
Application Number:
14/307,733
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2014 Jun 18
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Works referenced in this record:

Microstructural and microchemical mechanisms controlling intergranular stress corrosion cracking in light-water-reactor systems
journal, October 1994

Vibrational Spectra of Fluoro and Oxofluoro Complexes of Nb(V) and Ta(V)
journal, January 1991

Electrochemical Study of Tantalum in Fluoride and Oxofluoride Melts
journal, January 1994
  • Polyakova, L.
  • Journal of The Electrochemical Society, Vol. 141, Issue 11, p. 2982-2988
  • DOI: 10.1149/1.2059269

Processing of Ta2O5 powders for electronic applications
journal, December 2001

An experimental test facility to support development of the fluoride-salt-cooled high-temperature reactor
journal, February 2014

Alloys compatibility in molten salt fluorides Kurchatov Institute related experience
journal, October 2013

Corrosion characteristics of reduced activation ferritic steel, JLF-1 (8.92Cr–2W) in molten salts Flibe and Flinak
journal, June 2009

Investigation on corrosion behavior of Ni-based alloys in molten fluoride salt using synchrotron radiation techniques
journal, September 2013

Corrosion of 316 stainless steel in high temperature molten Li2BeF4 (FLiBe) salt
journal, June 2015

Impact of Corrosion Test Container Material in Molten Fluorides
journal, October 2015
  • Olson, Luke; Fuentes, Roderick; Martinez-Rodriguez, Michael
  • Journal of Solar Energy Engineering, Vol. 137, Issue 6, Article No. 061007
  • DOI: 10.1115/1.4031682