Manufacturing process to reduce large grain growth in zirconium alloys

Patent · Tue Mar 03 00:00:00 EST 1987

OSTI ID:6718954

Rosecrans, P M

A method is described of treating cold worked zirconium alloys to reduce large grain growth during thermal treatment above its recrystallization temperature. The method comprises heating the zirconium alloy at a temperature of about 1300/sup 0/F. to 1350/sup 0/F. for about 1 to 3 hours subsequent to cold working the zirconium alloy and prior to the thermal treatment at a temperature of between 1450/sup 0/-1550/sup 0/F., the thermal treatment temperature being above the recrystallization temperature.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4647317
• OSTI ID: 6718954
• Resource Relation: Patent File Date: Filed date 1 Aug 1984
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ZIRCONIUM ALLOYS
GRAIN GROWTH
HEAT TREATMENTS
RECRYSTALLIZATION
COLD WORKING
HIGH TEMPERATURE
MANUFACTURING
TIME DEPENDENCE
VERY HIGH TEMPERATURE
ALLOYS
FABRICATION
MATERIALS WORKING
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies