Microstructures and growth rates of FeS on pure and not-so-pure iron

Journal Article · Sun Apr 01 04:00:00 EST 1984 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2115713· OSTI ID:6037628

McKee, R A; Druschel, R E

The sulfidation rates of iron to Fe/sub 1-xs/ have been measured for three batches of nominally pure iron, and rather significant differences in microstructures and growth rates have been observed. The measurements were made at 700/sup 0/C over the sulfur pressure range of 1-10/sup 3/ Pa as part of a study of the general aspects of the microstructures and growth rates of this highly nonstoichiometric sulfide of iron. Apparently due to rather small differences in silicon content, 0-40 ppm, the scale microstructure, scale adhesion, and growth rate vary significantly. Silicon that is dissolved as small Fe/sub 2/SiO/sub 4/ particles in the iron accumulates at the scale/metal interface during the sulfidation reaction causing a layered growth. The overall reaction rate is reduced at the lowest pressures, but remains unchanged at higher pressures. 7 references, 7 figures, 1 table.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6037628
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 131:4; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTAL GROWTH
CRYSTAL STRUCTURE
DATA
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
IRON
IRON COMPOUNDS
IRON SULFIDES
METALS
MICROSTRUCTURE
NUMERICAL DATA
PRESSURE DEPENDENCE
SULFIDATION
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS