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Initial stages of the HCl-induced high-temperature corrosion of alloy 310

Nicklas Folkeson (Institutionen för kemi- och bioteknik, Oorganisk miljökemi) ; Lars-Gunnar Johansson (Institutionen för kemi- och bioteknik, Oorganisk miljökemi) ; Jan-Erik Svensson (Institutionen för kemi- och bioteknik, Oorganisk miljökemi)
JOURNAL OF THE ELECTROCHEMICAL SOCIETY 154 (9): ( 0013-4651 ). p. 515-521. (2007)
[Artikel, refereegranskad vetenskaplig]

Polished 310 stainless steel coupons were exposed isothermally in a horizontal tube furnace at 500 C for 1-168 h. The exposure gas consisted of N-2 with 5% O-2 and 500 ppm HCl(g). The corroded samples were analyzed by X-ray diffraction, focused ion beam microanalysis, scanning electron microscopy with energy-dispersive X-ray analysis, and by Auger electron spectroscopy. Mass gain was recorded. As expected, HCl (g) is a corrosion accelerator, the dominating corrosion products being FeCl2, Fe2O3, and Cr2O3. A tentative mechanism for the initial stages of the HCl-induced corrosion of stainless steel is presented. (c) 2007 The Electrochemical Society.

Denna post skapades 2008-01-14.
CPL Pubid: 65961


Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Oorganisk miljökemi (2005-2014)



Chalmers infrastruktur

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