Author: O. Norman CarlsonPublisher:
ISBN:
Category : Ternary alloys
Languages : en
Pages : 74
Book Description
Some Studies on the Uranium-thorium-zirconium Ternary Alloy System
Author: O. Norman CarlsonPublisher:
ISBN:
Category : Ternary alloys
Languages : en
Pages : 74
Book Description
SOME STUDIES ON THE URANIUM-THORIUM-ZIRCONIUM TERNARY ALLOY SYSTEM.
Author: The Structure of Alloys of Certain Systems Containing Uranium and Thorium
Author: Institut metallurgii (Akademii︠a︡ nauk SSSR)Publisher:
ISBN:
Category : Thorium alloys
Languages : en
Pages : 480
Book Description
Phase Diagrams of Certain Ternary Systems of Uranium and Thorium
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The results of investigation of alloy structures and phase diagrams of certain ternary systems, including uranium, thorium, and their refractory compounds, which are of interest in the search for materials for reactor fuel elements are presented. The attention was concentrated mainiy on the investigation of those parts of diagrams which referred to solid substance as being the most important for practical applications of alloys. The study of hardness, microstructure, and crystal lattice of alloys affer prolonged annealing at controlled temperatures and quenching was the chief method of the investigation. The general regularity governing the arrangement of typical crystal lattices of metals in the periodic table hold for equilibrium of binary solid solutions based on the alpha, BETA, and alpha modifications of uranium much the same as the binary systems of titanium, iron, and other polymorphous metals. Phase diagrams of ternary systems U-- Cr--Mo, U-- Zr-- Nb, U-- Zr-- Mo, U--Nb--Mo, and isothermic tetrahedrons for 800 and 1000 deg C of the quaternary system U--Zr--Nb--Mo are given to characterize the structure of most important alloys of uranium with the metals notable for their high solubility in gamma uranium and low thermal neutron cross sections. Some regularities of the existence of gamma solid solutions observed in these alloys are due to physical and chemical properties of their components and to the nature of their interaction. The experimental studies of certain thorium systems show that thorium hardly forms solid solutions with other metals due to the large size of its atom. Continuous series of solid solutions are found in binary systems Th--Ce and Th--Zr, and considerable degree of solubility at moderate temperatures is found in the Th--C system. In connection with this the constitution of ternary alloys Th--Zr--U, and Th-- U--C was studied. (auth).
Processing of Uranium-zirconium Alloys
Author: Uranium: Alloys and compounds. 1936-1958
Author: United States Dept. of Commerce. Office of Technical ServicesPublisher:
ISBN:
Category : Uranium
Languages : en
Pages : 16
Book Description
Development of High-strength Ternary and Quaternary Thorium-uranium Base Alloys
Author: R. H. ColePublisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 160
Book Description
The addition of alloying elements to base alloys of Th containing 5 and 10 wt% U was investigated with regard to alloy structures and elevated- temperature mechanical properties. The alloys developed possess elevated temperature tensile and stress-rupture strengths of essentially twice those associated with binary Th-5 and 10 wt% U alloys at 60O to 800 deg C. The greater strength of these alloys should resuit in improved resistance to radiation induced swelling at high temperatures. Noticeable improvement in elevated-temperature mechanical properties resulted from the addition of 2 and 5 wt% Zr to the Th-5 and Th-10 wt% U base alloys. Zr was found to be the most effective additive in improving elevated-temperature mechanical properties, although significant improvement was noted with additions of Nb, Mo, C, Al, and Be. Both solidsolution strengthening and dispersion strengthening of the Th --U base alloys were encountered. It was found that a fine intragranular distribution of the secondary U phase improved the mechanical properties of the alloys studied. Structures with optimum properties were produced by careful control of the arc-melting procedure and by solution heat treating at 1350 deg C followed by aging at 850 deg C. Preliminary testing was performed to determine the elevatedtemperature mechanical properties of Th metal and of the Th --U base alloys. Irradiation specimens of the most promising alloys were prepared. These specimens were encapsulated and are ready for irradiation testing at 800 deg C and for subjection to burnups of 10,000, 20,000 and 30,000 Mwd/ ton. (auth).
Physico-chemical analysis of alloys of uranium, thorium and zirconium
Author: E. M. TararaevaExamination and Properties of Uranium Alloys
Author: Henry A. SallerPublisher:
ISBN:
Category : Uranium
Languages : en
Pages : 26
Book Description
Author: