The Influence of Al on the High Temperature Sulfidation of An Fe-25Cr Alloy+ in H2S-H2 Gas Mixtures

Zhu Rizhang; Qi Huibin; He Yedong; Huang Zhenzhong

doi:10.13374/j.issn1001-053x.1994.s1.001

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Zhu Rizhang, Qi Huibin, He Yedong, Huang Zhenzhong. The Influence of Al on the High Temperature Sulfidation of An Fe-25Cr Alloy+ in H2S-H2 Gas Mixtures[J]. Chinese Journal of Engineering, 1994, 16(S1): 1-6,21. doi: 10.13374/j.issn1001-053x.1994.s1.001

Citation:

Zhu Rizhang, Qi Huibin, He Yedong, Huang Zhenzhong. The Influence of Al on the High Temperature Sulfidation of An Fe-25Cr Alloy⁺ in H₂S-H₂ Gas Mixtures[J]. Chinese Journal of Engineering, 1994, 16(S1): 1-6,21. doi: 10.13374/j.issn1001-053x.1994.s1.001

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The Influence of Al on the High Temperature Sulfidation of An Fe-25Cr Alloy⁺ in H₂S-H₂ Gas Mixtures

doi: 10.13374/j.issn1001-053x.1994.s1.001

Dept. of Surface Science and Corrosing Engineering

Received Date: 1993-07-10
Available Online: 2021-11-13

Abstract

Abstract

The effects of 5% Al and 10% Al on the sulfidation behaviour of the Fe-25Cr alloy in H₂S-H₂ gas mixtures in the temperature range of 700~900℃ has been studied.The sulfidation resistance of Fe-25Cr was improved and sulfide scale morphologies,composition and structure of Fe-25Cr were changed remarkably.The sulfidation kinetics of the alloys with aluminium obeyed basically the parabolic law after an initial period of reaction time.The sulfidation mechanism of the Fe-Cr-Al alloy has been proposed.
- Al,
- Fe-25Cr,
- H₂S-H₂ gas mixtures,
- sulfidation