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

Muralidharan, Govindarajan

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

Patent · Tue Mar 28 00:00:00 EDT 2017

OSTI ID:1348374

Muralidharan, Govindarajan

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.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-BATTELLE, LLC

Patent Number(s):: 9,605,565

Application Number:: 14/307,733

OSTI ID:: 1348374

Country of Publication:: United States

Language:: English

References (11)

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