TRANSFORMATION CHARACTERISTICS OF U-Mo AND U-Mo-Ti ALLOYS
Isothermal transformation kinetics are described for four uranium-base alloys: U--8 Mo, U--10 Mo, U--8 Mo-1/2 Ti, and U-- 8 Mo-- 1 Ti. The time- temperaturetransformation (TTT) diagrams presented are based on metallographic, dilatometric, microhardness, and x-ray-diffraction data. For the alloys under investigation, the transformation behavior may be divided conveniently into high- and low-temperature regions. At high temperatures the metastable bcc gamma phase decomposed by either a cellular mechanism or by a combination of cellular and Widmanstatten mechanisms. Isothermal transformation at low temperatures involved a different mechanism or mechanisms, but the transformation structures could not be revealed metallographically. X-ray-diffraction and hardness measurements were utilized to follow the course of transformation at these temperatures. Decomposition in the low-temperature range was initiated by precipitation of gamma homogeneously throughout the gamma matrix. (auth)
- Research Organization:
- Case Inst. of Tech., Cleveland
- NSA Number:
- NSA-18-018405
- OSTI ID:
- 4033717
- Journal Information:
- Trans. Am. Soc. Metals, Journal Name: Trans. Am. Soc. Metals Vol. Vol: 57
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
ISOTHERMAL TRANSFORMATION OF U-14 AND U-16 WT % Mo ALLOYS AT 550 C. Interim Report
THE TRANSFORMATION KINETICS OF URANIUM-ZIRCONIUM ALLOYS CONTAINING 50 AND 60 WT PCT URANIUM