Results 201 to 210 of about 17,377 (263)

Hot Corrosion of Metals and Alloys

Oxidation of Metals, 2011
When metals and alloys are used at high temperatures, especially in combustion processes, deposits often accumulate on the metal surfaces and affect the oxidation processes. This paper is concerned with deposit-induced accelerated corrosion, or hot corrosion, of metals and alloys.
exaly   +2 more sources

Hot corrosion of alumina

Journal of Materials Research, 1993
The hot corrosion of single crystal and polycrystalline aluminas has been investigated in SO2–SO3–O2 environments and in the presence of molten Na2SO4-based deposits at temperatures of 700 and 1000 °C. The effect of microstructure and impurities on the corrosion has been emphasized.
M.G. Lawson, F.S. Pettit, J.R. Blachere
openaire   +1 more source

Hot Corrosion of Silica

Journal of the American Ceramic Society, 1990
The high‐temperature corrosion of bulk silica glass was studied in pure oxygen and in SO 3 ‐containing oxygen atmospheres in the presence of liquid sulfate deposits at temperatures of 700° and 1000°C. No reaction and devitrification were observed without Na 2
Mark G. Lawson   +3 more
openaire   +1 more source

Hot Corrosion of Materials

Pure and Applied Chemistry, 1989
Alloys and ceramics may experience accelerated corrosion at high temperatures when their surfaces are coated by a thin film of fused salt in an oxidizing environment. Because of their high thermodynamic stabilities, fused alkali sulfates are frequently deposited or condensed onto hot substrates from the combustion product gases or else by the oxidation
openaire   +1 more source

Hot corrosion of Fe3Al

Journal of Materials Science, 2002
The oxidation and hot corrosion behavior of the binary iron aluminide, Fe-25Al (at.%), has been studied at 1100 K, 1225 K and 1330 K. Hot corrosion studies were conducted by coating the specimen surfaces with 2.5 ± 0.2 mg/cm2 of Na2SO4 prior to exposure in pure oxygen. Parabolic rate constants were obtained from weight gain data. The faster kinetics in
D. Das   +2 more
openaire   +1 more source

Hot corrosion in a temperature gradient

Materials and Corrosion, 1999
Abstract Hot corrosion is the accelerated attack of materials at elevated temperatures that is induced by a thin film of fused salt. Many materials that experience hot corrosion are exposed to high heat fluxes and temperature gradients. The hot corrosion of metals can be described by the dissolution of a protective metal oxide into the ...
openaire   +1 more source

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