Corrosion of Y, Fe and Fe-15Y in H-2-H2S mixture under 10(-3) Pa S-2 at 600 similar to 800 degrees C

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	Corrosion of Y, Fe and Fe-15Y in H-2-H2S mixture under 10(-3) Pa S-2 at 600 similar to 800 degrees C
	Y. Niu; W. T. Wu; C. L. Zeng; F. Gesmundo; F. Viani
	1996
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	12 期号:5 页码:321-328
摘要	The corrosion of an Fe-based alloy containing 15 wt pet Y in H-2-H2S mixtures under 10(-3) Pa S-2 was studied at 600 similar to 800 degrees C in an attempt to find materials with improved sulphidation resistance with respect to pure Fe. The presence of Y has been shown to be beneficial, but not sufficient to the level expected. In fact, the alloy is able to form at all tested temperatures an external FeS layer, beneath which a zone containing a mixture of the two sulphides is also present. Thus, Fe can still diffuse through this region to form the outer FeS layer with non-negligible rate. The corrosion rate of Fe is considerably reduced by the Y addition, but the alloy corrodes still much more rapidly than Y. The sulphidation kinetics is generally rather irregular for both the pure metals, while the corrosion rate of the alloy decreases with time and tends to become parabolic after an initial period of 12 similar to 17 h. The sulphidation behaviour of the alloys is discussed by taking into account the presence of an intermetallic compound Fe17Y2 and the limited solubility of Y in Fe.
部门归属	univ genoa,fac ingn,ist chim,i-16129 genoa,italy.;niu, y (reprint author), acad sinica,inst corros & protect met,state key lab corros & protect,shenyang 110015,peoples r china
关键词	High-temperature Sulfidation Most-reactive Component Ni-nb Alloys H2-h2s Mixtures Behavior 600-degrees-c-800-degrees-c Oxidation
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38372
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Niu,W. T. Wu,C. L. Zeng,et al. Corrosion of Y, Fe and Fe-15Y in H-2-H2S mixture under 10(-3) Pa S-2 at 600 similar to 800 degrees C[J]. Journal of Materials Science & Technology,1996,12(5):321-328.
APA	Y. Niu,W. T. Wu,C. L. Zeng,F. Gesmundo,&F. Viani.(1996).Corrosion of Y, Fe and Fe-15Y in H-2-H2S mixture under 10(-3) Pa S-2 at 600 similar to 800 degrees C.Journal of Materials Science & Technology,12(5),321-328.
MLA	Y. Niu,et al."Corrosion of Y, Fe and Fe-15Y in H-2-H2S mixture under 10(-3) Pa S-2 at 600 similar to 800 degrees C".Journal of Materials Science & Technology 12.5(1996):321-328.