In situ synchrotron X-ray diffraction study of surface scale formation during CO2 corrosion of carbon steel at temperatures up to 90°C

Autor:	G. Kear, N.J. Laycock, Justin A. Kimpton, M. Ko, Peter Kappen, David E. Williams, Bridget Ingham
Rok vydání:	2010
Předmět:	Diffraction Materials science Carbon steel General Chemical Engineering General Chemistry engineering.material Synchrotron Corrosion law.invention Anode Crystallography Brine Chemical engineering law X-ray crystallography engineering General Materials Science Crystallite
Zdroj:	Corrosion Science. 52:3052-3061
ISSN:	0010-938X
DOI:	10.1016/j.corsci.2010.05.025
Popis:	In situ synchrotron X-ray diffraction was used to follow the formation of corrosion product scales on carbon steel in CO 2 saturated brine at temperatures from 40 to 90 °C. The corrosion process was accelerated by applying a small anodic current, and in selected tests a scale inhibitor, amino trimethylene phosphonic acid (ATMPA), was added. Siderite was identified as the major phase in the scale formed in all conditions. With increasing temperature, the scale formation rate increased, while the scale thickness and crystallite size decreased. Above 60 °C, the scale became increasingly protective. The scale thickness and crystallite size decreased with increasing ATMPA concentration.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a952b00658092e25ddf98a1119fa6dc https://doi.org/10.1016/j.corsci.2010.05.025 Zobrazit plný text záznamu Full Text from ScienceDirect