Chemical composition of passive films on AISI 304 stainless steel

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2059338· OSTI ID:6589773

Lorang, G; Da Cunha Belo, M ^[1]; Simoes, A M.P.; Ferreira, M G.S. ^[2]

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1. Centre E'Etudes de Chimie Metallurgique du CNRS, Vitry-Sur-Seine (France)
2. Inst. Superior Tecnico, Lisboa (Portugal). Dept. de Engenharia Quimica

Chemical characterization of passive films formed on AISI 304 austenitic stainless steel, in a borate/boric acid solution at pH 9.2, under various conditions of potential, temperature, and polarizations time, was made by Auger electron spectroscopy combined with ion sputtering, and x-ray photoelectron spectroscopy (XPS). The depth chemical composition, thickness, and duplex character of the passive layers were determined after processing AES sputter profiles by their quantitative approach based on the sequential layer sputtering model. Moreover, separated contributions of elements in their oxidized and unoxidized state could be disclosed from part to part of the oxide-alloy interface. The XPS study specified the chemical bondings which take placed inside the film, between Fe and oxygen (and water).

• OSTI ID: 6589773
• Journal Information: Journal of the Electrochemical Society; (United States), Vol. 141:12; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PROTECTIVE COATINGS
CHEMICAL COMPOSITION
STAINLESS STEEL-304
PASSIVATION
BORATES
BORIC ACID
CHEMICAL BONDS
EXPERIMENTAL DATA
MEASURING METHODS
ALLOYS
AUSTENITIC STEELS
BORON COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
COATINGS
CORROSION RESISTANT ALLOYS
DATA
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NICKEL ALLOYS
NUMERICAL DATA
OXYGEN COMPOUNDS
STAINLESS STEELS
STEEL-CR19NI10
STEELS
360105* - Metals & Alloys- Corrosion & Erosion