Published January 2016 | Version v1
Journal article Metadata-only

Corrosion of thin, magnetron sputtered Nb2O5 films

Creators

  • 1. Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), Centro de Ciência e Tecnologia de Materiais (CCTM), 05508-000 São Paulo, SP (Brazil)
  • 2. Departamento de Engenharia Mecânica, Universidade Federal de Pernambuco (UFPE), 50670-901 Recife, PE (Brazil)
  • 3. Electrocell Ind. Com. Equip. Elet. LTDA, Centro de Inovação, Empreendedorismo e Tecnologia (CIETEC), 05508-000 São Paulo, SP (Brazil)
  • 4. Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS), Universidade Federal do ABC (UFABC), 09210-580 Santo André, SP (Brazil)

Description

Highlights: • Niobium oxide based films were obtained by DC magnetron sputtering. • Different deposition times were tested. • The best corrosion resistance was obtained for the Nb2O5 film produced at 15′. • Film porosity determines the corrosion resistance. - Abstract: Niobium oxide based thin films were deposited on AISI 316 stainless steel substrates using reactive DC magnetron sputtering. Structure, composition and corrosion resistance of the niobium oxide films were studied. The corrosion behavior of the specimens was evaluated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The concentration of niobium and oxygen in the films was obtained by Rutherford backscattering spectroscopy (RBS). The film structure was analyzed by X-ray diffractometry. The corrosion resistance of the substrate was improved by the Nb2O5 layers. The best protective performance was achieved for the deposition time of 15 min.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.corsci.2015.10.023

Additional details

Identifiers

DOI
10.1016/j.corsci.2015.10.023;
PII
S0010-938X(15)30122-0;

Publishing Information

Journal Title
Corrosion Science
Journal Volume
102
Journal Page Range
p. 317-325
ISSN
0010-938X
CODEN
CRRSAA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48012470
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
COATINGS; CONCENTRATION RATIO; CORROSION; CORROSION RESISTANCE; DEPOSITION; ELECTROCHEMISTRY; IMPEDANCE; LAYERS; NIOBIUM; NIOBIUM OXIDES; OXYGEN; POLARIZATION; POROSITY; RUTHERFORD BACKSCATTERING SPECTROSCOPY; SPUTTERING; STAINLESS STEEL-316; SUBSTRATES; THIN FILMS; X-RAY DIFFRACTION
Descriptors DEC
ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-MOLYBDENUM STEELS; CHROMIUM-NICKEL STEELS; CHROMIUM-NICKEL-MOLYBDENUM STEELS; COHERENT SCATTERING; CORROSION RESISTANT ALLOYS; DIFFRACTION; DIMENSIONLESS NUMBERS; ELEMENTS; FILMS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; METALS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NIOBIUM COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; SCATTERING; SPECTROSCOPY; STAINLESS STEELS; STEEL-CR17NI12MO3; STEELS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.