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Corrosion behavior of ion beam mixed amorphous NiNb coating

Journal Article · · J. Electrochem. Soc.; (United States)
DOI:https://doi.org/10.1149/1.2100467· OSTI ID:6870720
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The above study has demonstrated the relative passivity and pitting resistance of amorphous NiNb films as well as of pure Ni and pure Nb, in 1N HNO/sub 3/ and 0.1N NaCl solutions. In 1N HNO/sub 3/, Ni, Nb, and NiNb show passivity with breakdown only at high anodic potentials. The amorphous films have more noble open-circuit potentials and higher resistance to corrosion. In 0.1N NaCl, Ni shows anodic dissolution with formation of large pits. The amorphous films exhibit excellent corrosion resistance and strong passivity, with breakdown occurring only at high anodic potentials. Their corrosion potential was also higher than those of both Ni and Nb.
Research Organization:
Universal Energy Systems, Inc., Dayton, OH
OSTI ID:
6870720
Journal Information:
J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 134:2; ISSN JESOA
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ALKALI METAL COMPOUNDS
ALLOYS
AMORPHOUS STATE
ANODIZATION
BACKSCATTERING
BEAMS
CHEMICAL COATING
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COATINGS
CORROSION
CORROSION PROTECTION
CORROSION RESISTANCE
DEPOSITION
ELECTROCHEMICAL COATING
ELECTROCHEMICAL CORROSION
ELECTROLYSIS
ELECTRON MICROSCOPY
FABRICATION
FILMS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ION BEAMS
LYSIS
MICROSCOPY
MIXING
NICKEL ALLOYS
NIOBIUM ALLOYS
NITRIC ACID
POLARIZATION
POTENTIOMETRY
PROTECTIVE COATINGS
SCATTERING
SODIUM CHLORIDES
SODIUM COMPOUNDS
STRUCTURAL CHEMICAL ANALYSIS
SUBSTRATES
SURFACE COATING
TITRATION
TRANSMISSION ELECTRON MICROSCOPY