IMPROVEMENTS IN METHODS OF HYDRIDING ZIRCONIUM AND ZIRCONIUM ALLOYS

Patent · Wed May 15 04:00:00 EDT 1963

OSTI ID:4702097

A method of uniformly hydriding solid pieces of Zr and Zr alloys of substantial size without cracking is patented. Solid metal containing at least 50% by weight of Zr is heated in an evacuated chamber tc a temperature of at least 700 deg C. Hydrogen is introduced into the chamber in very small increments and at a very slow rate of pressure build-up, so that hydriding in a given phase of the H-Zr system is essentially completed before substantial hydriding in the next succeesive phase is obtained. Hydriding is completed in the gamma Zr phase, and the hydriding temperature is lowered while H is still being introduced in small increments. The resulting hydrided pieces of predetermined size and shape are ready for immediate use without shaping operations. (M.P.G.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-029274
• OSTI ID: 4702097
• Report Number(s): GB 925916
• Country of Publication: United Kingdom
• Language: English

Related Subjects

CRACKS
HEATING
HIGH TEMPERATURE
HYDROGENATION
METALS, CERAMICS, AND OTHER MATERIALS
PHASE DIAGRAMS
PLANNING
PRESSURE
QUANTITY RATIO
SOLIDS
VOLUME
ZIRCONIUM
ZIRCONIUM ALLOYS