PHASE CHANGE AND HEAT TREATMENT OF U-Fe ALLOYS. PART I

Journal Article · Fri Mar 01 04:00:00 EST 1963 · Nippon Genshiryoku Gakkaishi (Japan)

OSTI ID:4693395

Soeno, Ko

A series of uranium alloys varying in iron content from 0.5 to 1.0 at.% was quenched into water from various BETA and gamma -phase temperatures. Dilatation curves were determined by heating quenched specimens to obtain information about the retention of BETA and gamma uranium. According to the results obtained, gamma -to- BETA transformation is not interrupted by quenching, but BETA -uranium is retained in metastable state at room temperature. In the case of heating the quenched specimens, retained BETA -uranium transforms to alpha -uranium, but the martensitic transformation becomes more sluggish with increasing iron content. In gamma -quenched U - 1.0 at.% Fe alloy, most of the retained BETA -uranium transforms in alpha nucleation and growth mechanism, whose activation energy is 43.0 kcal/g-atom. (auth)

• Research Organization: Hitachi Ltd., Japan
• NSA Number: NSA-17-022184
• OSTI ID: 4693395
• Journal Information: Nippon Genshiryoku Gakkaishi (Japan), Journal Name: Nippon Genshiryoku Gakkaishi (Japan) Vol. Vol: 5; ISSN NGEGA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ADSORPTION
ALLOTROPY
CRYSTALLIZATION
DIAGRAMS
EXCITATION
EXPANSION
HEAT TREATMENTS
HEATING
IRON ALLOYS
LATTICES
MARTENSITE
METALS, CERAMICS, AND OTHER MATERIALS
METASTABLE STATES
NUCLEATE BOILING
QUENCHING
REACTION KINETICS
TEMPERATURE
URANIUM
URANIUM ALLOYS
URANIUM-BETA
URANIUM-GAMMA
WATER