ACTION OF DEUTERON IRRADIATION UPON THE ELECTRIC RESISTANCE OF ALLOYS UNDERGOING ORDERING AND AGING

Journal Article · Thu Jan 01 00:00:00 EST 1959 · Sb. Tr. Tsentr. Nauchn.-Issled. Inst. Chernoi Met.

OSTI ID:4778343

Artsishevskii, M A; Vasil'yev, S S; Koshelyayev, G V; Selisskii, Ya P

The effect of deuteron irradiation on the electric resistance of alloys Ni/sub 3/Fe, Fe/sub 3/Al undergoing ordering and of an alloy of Fe with 35% Ni and 4.5% Ti undergoing aging was investigated. The specimens were irradiated in a cyclotron with deuterons having an energy of 4 Mev. The electric resistance measurement was carried out by the potentiometric method. Because of the small dimensions of the specimens the voltage and the current leads constituted a single whole with the working part. The specimens of Ni/sub 3/Fe and of Fe/sub 3/ Al were investigated in the ordered and the unordered states; the specimens of Fe- Ni-Ti were studied in the aged and hardened states. It was established that when the ordered Fe/sub 3/Al alloy is irradiated its electric resistance was increased considerably, The electric resistance of the hardened alloy dropped, Bombarding of the Ni/sup 3/Fe alloy caused a considerable decrease in the electric resistance in both states. In all cases of irradiation with fluxes up to 5 x 10/ sup 17/ deuterons per 1 cm/sup 2/ causes a sharp change in electric resistance at a further increase of the total flux the rate of change dropped. The effects uncovered in the Fe-Ni-Ti alloy did not exceed the limits of experimental errors. It was concluded that the most probable process causing the reduction in electric resistance is the ordering. A considerable drop in the electric resistance of the alloy Ni/sub 3/Fe was noted, whose degree of ordering corresponded to a temperature of 250 to 300 deg C. In this alloy a further occurrence of ordering under irradiation was possible. The shape of the electric resistance curves of the irradiated specimens tempered at 250 deg C confirmed the hypothesis of the attainment of an intermediate degree of ordering as result of the irradiation. In tempering the Ni/sub 3/Fe the soaking time of the specimens at the respective temperatures was insufficient to obtain an equilibrium. (Ref. Zh. Met., No. 3,

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-000597
• OSTI ID: 4778343
• Journal Information: Sb. Tr. Tsentr. Nauchn.-Issled. Inst. Chernoi Met., Vol. Vol: No. 22; Other Information: Orig. Receipt Date: 31-DEC-63
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
ALLOYS
ALUMINUM ALLOYS
CYCLOTRONS
DEUTERONS
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
HARDNESS
HEAT TREATMENTS
INTERMETALLIC COMPOUNDS
IRON ALLOYS
IRRADIATION
LATTICES
MEASURED VALUES
NICKEL ALLOYS
ORDER-DISORDER TRANSFORMATION
QUALITATIVE ANALYSIS
RADIATION DOSES
RADIATION EFFECTS
SOLID SOLUTIONS
STABILITY
TEMPERATURE
TEMPERING
TITANIUM ALLOYS