OXIDATION OF MILD AND LOW-ALLOY STEELS IN CO2 BASED ATMOSPHERES

被引:49
作者
ANTILL, JE
PEAKALL, KA
WARBURTON, JB
机构
[1] Metallurgy Division, A.E.R.E., Didcot, Berks. England
关键词
D O I
10.1016/S0010-938X(68)80103-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The behaviour of pure Fe, a rimming steel and three low-alloy steels has been fully characterized in CO2 containing small amounts of CO and H2O at 500 °C. Emphasis has been given to the provision of basic data to assist in the identification of the mechanisms responsible for the formation of non-protective oxide together with linear oxidation rates. Essential conditions for non-protective oxidation are the presence of water vapour and a high pressure of CO2. The adverse influence of water vapour is enhanced by deposits of Au, C, and Pt on the metal. C may be transferred from the gas phase as several per cent of the O transfer by the Boudouard or a similar reaction, utilizing CO produced by prior oxidation of the metal with CO2. Two tentative mechanisms are advanced to explain non-protective oxidation. © 1968.
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页码:689 / +
页数:1
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