Corrosion of a Co-15 Ce alloy under 10(-3)Pa S-2 at 700 degrees C

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	Corrosion of a Co-15 Ce alloy under 10(-3)Pa S-2 at 700 degrees C
	G. Y. Fu; Y. Niu; W. T. Wu
	1998
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	8 期号:1 页码:97-101
摘要	The corrosion behaviors of a Co-Ce alloy containing approximately 15 % Ce, pure Co and pure Ce have been studied at 700 degrees C in H-2-H2S mixtures providing a sulfur pressure of 10(-3)Pa. It is shown that the alloy corroded more slowly than pure cobalt, but more rapidly than pure cerium. The corrosion of the alloy produced duplex scales, containing an outermost layer of pure cobalt sulfide and an inner layer of a cerium sulfide mixed with cobalt sulfide and an innermost layer where cerium sulfide was mixed with cobalt metal. The cobalt sulfide formed a continuous CoS layer on the surface of the alloy, even though at rates reduced with respect to pure cobalt. Thus, a cerium content of 15% was not sufficient to prevent the sulfidation of the base metal. These results were interpreted by taking into account the limited solubility of cerium in the base metal and the presence in the alloy of intermetallic compound rich in cerium.
部门归属	chinese acad sci, inst corros & protect met, state key lab corros & protect, shenyang 110015, peoples r china. shenyang inst chem technol, dept chem engn & machinery, shenyang 110021, peoples r china.
关键词	Co-ce Alloy Sulfidation Corrosion 2-phase Binary-alloys Internal Oxidation Oxidant Pressures Nb Alloys 600-800-degrees-c
URL	查看原文
WOS记录号	WOS:000072836300023
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37656
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Y. Fu,Y. Niu,W. T. Wu. Corrosion of a Co-15 Ce alloy under 10(-3)Pa S-2 at 700 degrees C[J]. Transactions of Nonferrous Metals Society of China,1998,8(1):97-101.
APA	G. Y. Fu,Y. Niu,&W. T. Wu.(1998).Corrosion of a Co-15 Ce alloy under 10(-3)Pa S-2 at 700 degrees C.Transactions of Nonferrous Metals Society of China,8(1),97-101.
MLA	G. Y. Fu,et al."Corrosion of a Co-15 Ce alloy under 10(-3)Pa S-2 at 700 degrees C".Transactions of Nonferrous Metals Society of China 8.1(1998):97-101.