Ductile long range ordered alloys with high critical ordering temperature and wrought articles fabricated therefrom

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863307

Liu, Chain T ^[1]; Inouye, Henry ^[1]

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1. Oak Ridge, TN

Malleable long range ordered alloys having high critical ordering temperatures exist in the V(Fe, Co).sub.3 and V(Fe, Co, Ni).sub.3 systems. These alloys have the following compositions comprising by weight: 22-23% V, 14-30% Fe, and the remainder Co or Co and Ni with an electron density no more than 7.85. The maximum combination of high temperature strength, ductility and creep resistance are manifested in the alloy comprising by weight 22-23% V, 14-20% Fe and the remainder Co and having an atomic composition of V(Fe .sub.0.20-0.26 C Co.sub.0.74-0.80).sub.3. The alloy comprising by weight 22-23% V, 16-17% Fe and 60-62% Co has excellent high temperature properties. The alloys are fabricable into wrought articles by casting, deforming, and annealing for sufficient time to provide ordered structure.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4144059
• OSTI ID: 863307
• Country of Publication: United States
• Language: English

Related Subjects

ductile
range
alloys
critical
temperature
wrought
articles
fabricated
therefrom
malleable
temperatures
exist
systems
following
compositions
comprising
weight
22-23
14-30
remainder
electron
density
85
maximum
combination
strength
ductility
creep
resistance
manifested
alloy
14-20
atomic
composition
20-0
26
74-0
80
16-17
60-62
excellent
properties
fabricable
casting
deforming
annealing
sufficient
time
provide
structure
creep resistance
temperature strength
alloy comprising
sufficient time
electron density
compositions comprising
temperatures exist
atomic composition
following compositions
fabricated therefrom
following composition
/420/148/