Title
Evaluation of corrosion damage obtained during the combustion process in a boiler. Case study: Ferritic steel ASTM A335 P91
Date Issued
01 January 2018
Access level
metadata only access
Resource Type
journal article
Author(s)
Alviz-Meza A.
Kafarov V.
Peña-Ballesteros D.Y.
Publisher(s)
Italian Association of Chemical Engineering - AIDIC
Abstract
The corrosive effects developed on Fe-9Cr-1Mo steel in a typical combustion environment were evaluated. For this, steel samples were submitted in a pirotubular horizontal boiler, through the design of a coupon holder. With the experimental conditions characterized, the theoretical corrosion products were simulated; which showed similarity with SEM-EDS and DRX analysis, in the formation of hematite, magnetite and chromite. On the other hand, the oxide layers morphology deposited on the substrate, indicated the appearance of multiple efforts in them: cracks, pores, voids and detachments were observed. To complement these observations, the kinetic study was carried out, which allowed to determine a semi-protective behaviour from the oxide layers formed on Fe-9Cr-1Mo steel; where the diffusive processes are partially reduced. Finally, only oxidation and some localized nitridation could be identified. Carburization could not be identified due to the high oxygen potentials in the environment, and to the short-selected exposure times.
Start page
1093
End page
1098
Volume
70
Language
English
OCDE Knowledge area
Ingeniería química Ingeniería del Petróleo, (combustibles, aceites), Energía, Combustibles
DOI
10.3303/CET1870183
Scopus EID
2-s2.0-85051373250
Source
Chemical Engineering Transactions
ISSN of the container
22839216
Source funding
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Sponsor(s)
The authors expressed their acknowledgments to the Administrative Department of Science, Technology and Innovation of Colombia (COLCIENCIAS) and Colombian Network of Knowledge in Energy Efficiency (RECIEE) for financial support of this work that is part of the project “Consolidation of the knowledge network on energy efficiency and its impact on the productive sector under international standards - Design of a methodology for the eco-efficient management of combustion processes, case study: the oil refining industry” code of COLCIENCIAS: 110154332086.
Sources of information: Directorio de Producción Científica Scopus