Method of increasing the phase stability and the compressive yield strength of uranium-1 to 3 wt. % zirconium alloy
A method is described for increasing the phase stability and the compressive yield strength of a corrosion resistant uranium-1 to 3 wt.% zirconium alloy comprising the steps of reducing the thickness of a homogeneous ingot of the alloy by upset forging, rolling the forged ingot into a plate, heating the plate in vacuum to a temperature about the gamma transformation temperature and water quenching the plate to ambient temperature with the alloy exhibiting alpha prime and equilibrium alpha plus delta phases. The improvement described here consists of the steps of cold rolling the plate after the quenching to further reduce the thickness of the plate, aging the cold rolled plate at a first temperature, thereafter aging the cold rolled plate at a second temperature higher than the first temperature for converting alpha prime phase into additional equilibrium alpha and delta phases, and cooling the plate to ambient temperatures.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4604148
- OSTI ID:
- 5247401
- Country of Publication:
- United States
- Language:
- English
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Method for improving the mechanical properties of uranium-1 to 3 wt % zirconium alloy
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Related Subjects
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ACTINIDE ALLOYS
AGING
ALLOYS
AMBIENT TEMPERATURE
COLD WORKING
COMPRESSION STRENGTH
CORROSION RESISTANCE
EQUILIBRIUM
FABRICATION
FORGING
HEATING
HYDROGEN COMPOUNDS
MATERIALS WORKING
MECHANICAL PROPERTIES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
QUENCHING
ROLLING
STABILITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
URANIUM ALLOYS
URANIUM BASE ALLOYS
WATER
YIELD STRENGTH
ZIRCONIUM ALLOYS