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Investigation of the metal dusting attack on the temperature range 500−700 °C using X-ray tomography

Mathieu, Stéphane and Le Pivaingt, Lena and Ferry, Olivier and Vilasi, Michel and Stuppfler, Alexandre and Guichard, Jean-louis and Vande Put, Aurélie and Monceau, Daniel Investigation of the metal dusting attack on the temperature range 500−700 °C using X-ray tomography. (2021) Corrosion Science, 192. 109863. ISSN 0010-938X

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Official URL: https://doi.org/10.1016/j.corsci.2021.109863

Abstract

A test rig consisting of a quartz tube placed in a horizontal furnace made of five independently regulated heating zones allowed the evaluation of the metal dusting attack of a FeNiCr alloy. Fifteen samples were exposed in a temperature gradient from 504° to 704°C, 1.1 bar, to a highly carburizing atmosphere for 1500 h. Below 561 °C the high density of pits led to uniform corrosion whereas localized pits developed at higher temperatures. In depth pit growth rate raised to a maximum at 632 °C, then decreased showing that it depends both on temperature and on the carbon activity gradient.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > ICAR - CM2T (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université de Lorraine (FRANCE)
Laboratory name:
Funders:
French Environment Agency ADEME
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Deposited On:16 Nov 2021 12:53

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