Kinetics of dissolution of copper-nickel alloys. Anodic dissolution of alloy Cu30Ni under steady-state conditions

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Prot. Met. (Engl. Transl.); (United States)

OSTI ID:5930958

Zolotarev, E I; Pchel'nikov, A P; Shuratnik, Ya B; Dembrovskii, M A; Khokhlov, N I; Losev, V V

A radiometric method employing a Co/sup 58/ tracer and double neutron irradiation was developed to determine the partial rates of dissolution of the components of copper-nickel alloys. The applicability of the ..gamma..-isotope of Co/sup 58/ as a foreign tracer for nickel is demonstrated in the anodic dissolution and corrosion of alloy Cu30Ni by comparative measurements with isotopes Ni/sup 65/ and Co/sup 58/. The isotopes Co/sup 58/ and Cu/sup 64/ were used to obtain partial anodic polarization curves of the dissolution of nickel and copper from alloy Cu30Ni in 1 N H/sub 2/SO/sub 4/ under galvanometric conditions. The curves are linear, have a Tafel slope of about 0.04 V, and lie in the region of dissolution of pure copper. Under steady-state conditions, alloy Cu30Ni dissolves uniformly (z/sub Ni/ = 1). Meanwhile, dissolution is determined by the behavior of the copper component. Under nonsteady conditions (E = 0.05 V), nickel is dissolved selectively from the alloy.

• OSTI ID: 5930958
• Journal Information: Prot. Met. (Engl. Transl.); (United States), Vol. 23:6; Other Information: Translated from Zashch. Met.; 23: No. 6, 922-929(Nov-Dec 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER ALLOYS
DISSOLUTION
ELECTROCHEMICAL CORROSION
RADIOMETRIC ANALYSIS
NICKEL ALLOYS
ACTIVATION ANALYSIS
CHEMICAL REACTION KINETICS
COBALT 58
COPPER 64
CORROSIVE EFFECTS
GAMMA RADIATION
GAMMA SPECTRA
IRRADIATION
ISOTOPE RATIO
LI-DRIFTED GE DETECTORS
NAI DETECTORS
NEUTRON REACTIONS
NICKEL 58 TARGET
NICKEL 65
POLARIZATION
SCINTILLATION COUNTING
SULFURIC ACID
ALLOYS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COBALT ISOTOPES
COPPER ISOTOPES
CORROSION
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
GE SEMICONDUCTOR DETECTORS
HADRON REACTIONS
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KINETICS
LI-DRIFTED DETECTORS
MEASURING INSTRUMENTS
NICKEL ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION DETECTORS
RADIATIONS
RADIOISOTOPES
REACTION KINETICS
SCINTILLATION COUNTERS
SEMICONDUCTOR DETECTORS
SOLID SCINTILLATION DETECTORS
SPECTRA
TARGETS
360105* - Metals & Alloys- Corrosion & Erosion
400101 - Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures