Process for fabricating articles of tungsten-nickel-iron alloy
Patent
·
OSTI ID:862633
A high density W--Ni--Fe alloy of composition 85-96% by weight W and the remainder Ni and Fe in a wt. ratio of 5:5-8:2 having enhanced mechanical properties is prepared by compacting the mixed powders, sintering the compact in reducing atmosphere to near theoretical density followed by further sintering at a temperature where a liquid phase is present, vacuum annealing, and cold working to achieve high uniform hardness.
- Research Organization:
- UNION CARBIDE CORP
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Number(s):
- US 3979234
- OSTI ID:
- 862633
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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5-8
85-96
achieve
alloy
annealing
articles
atmosphere
cold
compact
compacting
composition
density
enhanced
enhanced mechanical
fabricating
followed
hardness
iron alloy
liquid
liquid phase
mechanical
mechanical properties
mixed
near
phase
powders
prepared
process
properties
ratio
reducing
reducing atmosphere
remainder
sintering
temperature
theoretical
theoretical density
tungsten-nickel-iron
tungsten-nickel-iron alloy
uniform
vacuum
w--ni--fe
weight
wt
5-8
85-96
achieve
alloy
annealing
articles
atmosphere
cold
compact
compacting
composition
density
enhanced
enhanced mechanical
fabricating
followed
hardness
iron alloy
liquid
liquid phase
mechanical
mechanical properties
mixed
near
phase
powders
prepared
process
properties
ratio
reducing
reducing atmosphere
remainder
sintering
temperature
theoretical
theoretical density
tungsten-nickel-iron
tungsten-nickel-iron alloy
uniform
vacuum
w--ni--fe
weight
wt