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

Patent · Tue Mar 13 00:00:00 EST 1979

OSTI ID:6038432

Liu, C T; Inouye, H

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 to 23% V, 14 to 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 to 23% V, 14 to 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 to 23% V, 16 to 17% Fe and 60 to 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.

• Assignee: Dept. of Energy
• Patent Number(s): US 4144059
• OSTI ID: 6038432
• Resource Relation: Patent File Date: Filed date 14 Mar 1978; Other Information: PAT-APPL-886,379
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COBALT ALLOYS
FABRICATION
HASTELLOY X
COMPARATIVE EVALUATIONS
IRON ALLOYS
NICKEL ALLOYS
VANADIUM ALLOYS
ANNEALING
CASTING
CHEMICAL COMPOSITION
CREEP
DEFORMATION
DUCTILITY
ELONGATION
GRAPHS
HIGH TEMPERATURE
MECHANICAL PROPERTIES
YIELD STRENGTH
ALLOYS
CHROMIUM ALLOYS
DATA FORMS
HASTELLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TREATMENTS
MATERIALS
MOLYBDENUM ALLOYS
TENSILE PROPERTIES
TUNGSTEN ALLOYS
360103* - Metals & Alloys- Mechanical Properties
360101 - Metals & Alloys- Preparation & Fabrication