Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
Effect of PbO on High Temperature Air Oxidation of Fe
Ken-ichiro OtaHiroyuki KounoMituo FujitaNobuyuki Kamiya
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1992 Volume 41 Issue 2 Pages 96-100

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Abstract

In the production processes of lead glass, the corrosion of furnace materials causes serious problems, because lead and lead oxides melt at relatively low temperature. Anomalous corrosion occurs when ferrous metals such as seel and stainless steel are in contact with lead oxides at high temperature. This phenomenon was analysed gravimetrically. The oxidation rate of the iron coated with lead oxide powder has been measured. The oxidation rate at the temperature above 1023K was proportional to the thickness of powder lead oxide layer. In contrast, the oxidation rate reaches a maximum at certain thickness below 1023K. This corrosion behavior was explained by the formation of eutectic mixture composed of a few oxides of iron and lead.

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© Japan Society of Corrosion Engineering
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