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THE PHASE DIAGRAM OF THE VANDIUM-CERIUM SYSTEM

E.M. Savitskii, V.V. Baron, Yu.V. Efimov

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Abstract

The alloys containing up to 50 wt% cerium were prepared in an arc furnace having a non-consumable tungsten electrode in a purified helium atmosphere. Microstructural analysis showed the appearance of a second layer rich in cerium at 0.2 to 0.3% Ce. The maximum solubility of cerium in vanadium is 0.1%. The microhardness of pure vanadium increases from 150 to 165-170 kg/mm/ sup 2/ on addition of 0.05 to 0.1% Ce. No intermediate phases are formed in the system. X-ray analyses of the 50%, Ce alloy shows only line of vanadium and cerium. The lattice parameters of vanadium (a = 3.029 A) do not changc on fusion with cerium. The phase diagram for the V-Ce system is presented. (TTT)

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The alloys containing up to 50 wt% cerium were prepared in an arc furnace having a non-consumable tungsten electrode in a purified helium atmosphere. Microstructural analysis showed the appearance of a second layer rich in cerium at 0.2 to 0.3% Ce. The maximum solubility of cerium in vanadium is 0.1%. The microhardness of pure vanadium increases from 150 to 165-170 kg/mm/ sup 2/ on addition of 0.05 to 0.1% Ce. No intermediate phases are formed in the system. X-ray analyses of the 50%, Ce alloy shows only line of vanadium and cerium. The lattice parameters of vanadium (a = 3.029 A) do not changc on fusion with cerium. The phase diagram for the V-Ce system is presented. (TTT)

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Available abstract

The alloys containing up to 50 wt% cerium were prepared in an arc furnace having a non-consumable tungsten electrode in a purified helium atmosphere. Microstructural analysis showed the appearance of a second layer rich in cerium at 0.2 to 0.3% Ce. The maximum solubility of cerium in vanadium is 0.1%. The microhardness of pure vanadium increases from 150 to 165-170 kg/mm/ sup 2/ on addition of 0.05 to 0.1% Ce. No intermediate phases are formed in the system. X-ray analyses of the 50%, Ce alloy shows only line of vanadium and cerium. The lattice parameters of vanadium (a = 3.029 A) do not changc on fusion with cerium. The phase diagram for the V-Ce system is presented. (TTT)

Key concepts: Cerium, Vanadium, Materials science, Phase diagram, Alloy, Metallurgy, Tungsten, Phase (matter)

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