Next Article in Journal
Digestion of Alumina from Non-Magnetic Material Obtained from Magnetic Separation of Reduced Iron-Rich Diasporic Bauxite with Sodium Salts
Next Article in Special Issue
Superior Strength of Austenitic Steel Produced by Combined Processing, including Equal-Channel Angular Pressing and Rolling
Previous Article in Journal
Effect of Surface Texturing on Stresses during Rapid Changes in Temperature
Open AccessArticle

Corrosion of Fe-(9~37) wt. %Cr Alloys at 700–800 °C in (N2, H2O, H2S)-Mixed Gas

School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea
Author to whom correspondence should be addressed.
Academic Editor: Robert Tuttle
Metals 2016, 6(11), 291;
Received: 18 October 2016 / Revised: 14 November 2016 / Accepted: 15 November 2016 / Published: 23 November 2016
(This article belongs to the Special Issue Alloy Steels)
Fe-(9, 19, 28, 37) wt. %Cr alloys were corroded at 700 and 800 °C for 70 h under 1 atm of N2, 1 atm of N2/3.2%H2O mixed gas, and 1 atm of N2/3.1%H2O/2.42%H2S mixed gas. In this gas composition order, the corrosion rate of Fe-9Cr alloy rapidly increased. Fe-9Cr alloy was always non-protective. In contrast, Fe-(19, 28, 37) wt. %Cr alloys were protective in N2 and N2/3.2%H2O mixed gas because of the formation of the Cr2O3 layer. They, however, became nonprotective in N2/3.1%H2O/2.42%H2S mixed gas because sulfidation dominated to form the outer FeS layer and the inner Cr2S3 layer containing some FeCr2S4. View Full-Text
Keywords: Fe-Cr alloy; oxidation; sulfidation; H2S corrosion Fe-Cr alloy; oxidation; sulfidation; H2S corrosion
Show Figures

Figure 1

MDPI and ACS Style

Kim, M.J.; Abro, M.A.; Lee, D.B. Corrosion of Fe-(9~37) wt. %Cr Alloys at 700–800 °C in (N2, H2O, H2S)-Mixed Gas. Metals 2016, 6, 291.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop