INFLUENCE OF Y,Ce AND La ON HIGH TEMPERATURE SULFIDATION OF Fe-25Cr-40Ni SUPERALLOY |
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| Authors: | HUANG Yuanwei HAN Yong SUN Lanxiang XU Zhiqiang SHI Shengtai S. T. Shih |
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| Affiliation: | HUANG Yuanwei,HAN Yong,SUN Lanxiang,XU Zhiqiang,SHI Shengtai S. T. Shih Shanghai Institute of Metallurgy,Academia Sinica |
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| Abstract: | The effects of Y, Ce and La on the sulfidation of alloy Fe-25Cr-40Nihave been investigated. The sulfidation rate of the alloys with RE more than 0.1wt-% is lower than that of the base alloy. The addition of Y is more effectivethan La and Ce in lowering the sulfidation rate. Based on the analyses of the struc-ture and composition of the sulfide scales. The sulfidation mechanism of the al1oyswith RE has been proposed. |
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| Keywords: | sulfidation rare-earth sulfide scale sulfidation rate |
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