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Title: Effects of sulfur pressure on the sulfidation behavior of 310 stainless steel
Authors: W. Kai
C. T. Leu
P. Y. Lee
Contributors: 國立臺灣海洋大學:材料工程研究所
Keywords: corrosion
310 stainless steel
(Fe, Ni)9S8
Date: 1996-10
Issue Date: 2018-10-25T02:40:16Z
Publisher: Oxidation of Metals
Abstract: Abstract: High-temperature sulfidation behavior of 310 stainless steel was studied over the temperature range of 700–900°C above a pure sulfur pool with the sulfurvapor range of 10−4–10−1 atm. The corrosion kinetics followed the parabolic rate law in all cases. The corrosion rates increased with increasing temperature and sulfur pressure. The scales formed on 310 stainless steel were complex and multilayered. The outer scale consisted of iron sulfide (with dissolved Cr), (Fe, Ni)9S8 and chromium sulfides (Cr2S3 and Cr3S4 with dissolved Fe), while the inner layer was a heterophasic mixture of Cr2S3, Cr3S4, NiCr2S4, and Fe1−xS. Platinum markers were found to be located at the interface between the inner and outer scales, suggesting that the outer scale grew by the outward transport of cations (Fe, Ni, and Cr), and the inner scale grew by the inward transport of sulfur. The formation of Cr2S3, Cr3S4, and NiCr2S4 partly blocked the transport of iron through the inner scale, resulting in a reduction of the corrosion rates as compared with the results in the literature.
Relation: 46(3-4) pp.185-211
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50802
Appears in Collections:[材料工程研究所] 期刊論文

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