Advanced STEM/EDX investigation on an oxide scale thermally grown on a high-chromium iron–nickel alloy under very low oxygen partial pressure

L. Latu-Romain (1) , Y. Madi , S. Mathieu (2) , F. Robaut (3) , J.-P. Petit (1) , Y. Wouters (1)

1 SIMaP - Science et Ingénierie des Matériaux et Procédés
2 UL - Université de Lorraine
3 CMTC - Consortium des Moyens Technologiques Communs

A thermal oxide scale has been grown on a high-chromium iron-nickel alloy under very low oxygen partial pressure (1050 degrees C, 10(-10) Pa). In this paper, a special attention has been paid to morphological and chemical characterizations of the scale by scanning transmission electron microscopy and energy dispersive X-ray analysis at high resolution on a cross-section thin lamella beforehand prepared by using a combined focused ion beam/scanning electron microscope instrument. The complexity of the oxide layer is highlighted, and the correlation between the present results and the ones of a photoelectrochemical study is discussed. (C) 2015 Elsevier Ltd. All rights reserved.

Domaines: Matériaux

L. Latu-Romain, Y. Madi, S. Mathieu, F. Robaut, J.-P. Petit, et al.. Advanced STEM/EDX investigation on an oxide scale thermally grown on a high-chromium iron–nickel alloy under very low oxygen partial pressure. Corrosion Science, 2015, 101, pp.193-200. ⟨10.1016/j.corsci.2015.09.021⟩. ⟨hal-01263538⟩