The corrosion behavior of a sputtered micrograin film on Fe-5Cr-5Si alloy in H2-CO2-H2S mixture at 700 °C
Abstract
The corrosion behaviors of as-cast Fe-5Cr-5Si alloy with and without sputtered Fe-5Cr-5Si film in H2-CO2-H2S mixture at 700 °C are studied. The corrosion scale forming on the as-cast alloy is non-protective and mainly composed of FeS outer layer and FeS + FeCr2O4 + Fe2SiO4 inner layer. However, a continuous Cr2O3 + SiO2 layer which possesses favorable protectiveness forms at the coating/alloy interface for the coated alloy, even though FeS layer and FeS + FeCr2O4 + Fe2SiO4 mixed layer also form. The formation mechanism of the Cr2O3 + SiO2 layer on the coated alloy is discussed thoroughly.
Citation
Liu , L L , Li , W B , Guo , Q Q , Ni , C S & Niu , Y 2017 , ' The corrosion behavior of a sputtered micrograin film on Fe-5Cr-5Si alloy in H 2 -CO 2 -H 2 S mixture at 700 °C ' , Corrosion Science , vol. 111 , pp. 446-453 . https://doi.org/10.1016/j.corsci.2016.05.017
Publication
Corrosion Science
Status
Peer reviewed
ISSN
0010-938XType
Journal article
Description
Financial support from the NSFC (Projects NO. 59071129 & 51501135) is acknowledged.Collections
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