The effects of 5 wt.-% Al and 10 wt.-% Al on the sulfidation behaviour of the Fe-25Cralloy in H<sub>2</sub>S-H<sub>2</sub> gas mixtures in the temperature range of 700～900 C has been studied.T...The effects of 5 wt.-% Al and 10 wt.-% Al on the sulfidation behaviour of the Fe-25Cralloy in H<sub>2</sub>S-H<sub>2</sub> gas mixtures in the temperature range of 700～900 C has been studied.Thesulfidation resistance of Fe-25Cr was improved and the sulfide scale morphologies,compositionand structure of Fe-25Cr changed remarkably.The sulfidation kinetics of the alloys with alu-minium obeyed basically the parabolic law after an initial period of reaction time.The sulfida-tion mechanism of the Fe-Cr-Al alloy has been proposed.展开更多
基金Financially supported by the National Natural Science Foundation of China and the Chinese Corrosion Science Laboratory
文摘The effects of 5 wt.-% Al and 10 wt.-% Al on the sulfidation behaviour of the Fe-25Cralloy in H<sub>2</sub>S-H<sub>2</sub> gas mixtures in the temperature range of 700～900 C has been studied.Thesulfidation resistance of Fe-25Cr was improved and the sulfide scale morphologies,compositionand structure of Fe-25Cr changed remarkably.The sulfidation kinetics of the alloys with alu-minium obeyed basically the parabolic law after an initial period of reaction time.The sulfida-tion mechanism of the Fe-Cr-Al alloy has been proposed.
