ChemInformVolume 20, Issue 7 Physical Inorganic Chemistry ChemInform Abstract: High-Temperature Corrosion of Fe-Ni-Cr, Fe-Cr-Al, and Fe-Ni-Cr-Al Alloys in Controlled H2/H2O/CH4 Atmospheres. M. K. LOUDJANI, M. K. LOUDJANI Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this authorJ. C. PIVIN, J. C. PIVIN Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this authorA. M. HUNTZ, A. M. HUNTZ Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this authorJ. H. DAVIDSON, J. H. DAVIDSON Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this author M. K. LOUDJANI, M. K. LOUDJANI Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this authorJ. C. PIVIN, J. C. PIVIN Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this authorA. M. HUNTZ, A. M. HUNTZ Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this authorJ. H. DAVIDSON, J. H. DAVIDSON Lab. Metall. Struct., ISMA, CNRS, Univ. Paris-Sud, 91405 Orsay, Fr.Search for more papers by this author First published: February 14, 1989 https://doi.org/10.1002/chin.198907025Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume20, Issue7February 14, 1989 RelatedInformation
Corrosion tests have been carried out at 1200°C in various H2/H2O/CH4 mixtures, for a range of pre-oxidized materials, including an austenitic Fe45Ni25Cr alloy and a series of ferritic, austenitic and two phase alumina-forming grades. The corrosion process has been studied principally by metallographic examination of the scales and of the underlying alloys, together with local chemical and physical analysis. The results are interpreted with the aid of thermodynamic phase-stability diagrams.
AbstractDesigners of industrial plants are often confronted with problems of high temperature corrosion in complex atmospheres. The selection and development of economically and technically viable new materials for such applications requires the use of experimental rigs capable of simulating as closely as possible the real operating conditions.With this aim, a new laboratory installation has been built, which enables precisely defined mixtures of up to four gases to be obtained (plus water vapour, if required). It is thus possible to fix the activities of O, H, C and S at the working temperature. The composition is monitored at various points in the rig, using a chromatograph.The first tests were carried out on three Fe‐Cr‐Ni alloys exposed to complex gas mixtures (CO/CH4/H2/H2S) similar to those encountered in coal‐gasification plant. The observations show that, due to the low oxygen partial pressures, the multi‐layered scales are composed mainly of sulphides. These results are compared with predictions based on calculated thermodynamic phase stability diagrams.
