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Article Dans Une Revue Corrosion Science Année : 2021

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

Résumé

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.

Domaines

Matériaux
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Dates et versions

hal-03426060 , version 1 (30-05-2023)

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Citer

S. Mathieu, L. Le Pivaingt, O. Ferry, M. Vilasi, A. Stuppfler, et al.. Investigation of the metal dusting attack on the temperature range 500−700 °C using X-ray tomography. Corrosion Science, 2021, 192, pp.109863. ⟨10.1016/j.corsci.2021.109863⟩. ⟨hal-03426060⟩
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