Accelerated corrosion of pure Fe, Ni, Cr and several Fe-based alloys induced by ZnCl2-KCl at 450 degrees C in oxidizing environment

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	Accelerated corrosion of pure Fe, Ni, Cr and several Fe-based alloys induced by ZnCl2-KCl at 450 degrees C in oxidizing environment
	Y. S. Li; Y. Niu; W. T. Wu
	2003
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	345 期号:1-2 页码:64-71
摘要	Corrosion problems in waste incinerators are usually rather severe, also due to the presence of low-melting point heavy and alkali metal chlorides. In this paper, the corrosion behavior of several Fe-based alloys with different Cr content, as well as three pure metals Fe, Cr, and Ni, was studied at 450 degreesC beneath ZnCl2-KCl deposits in flowing pure oxygen. All the materials suffered from accelerated corrosion characterized by an important separation and spallation of the oxide scales. The Cr-containing alloys did not exhibit better corrosion resistance to this environment due to the poor adherence of the scales to the matrix, while higher Ni content could improve the corrosion resistance. Chlorine was always enriched on the substrate surface beneath the scale, and in some cases chlorine-rich corrosion products were also present within the alloy matrix. For the HP heat-resistant steel, Cr-rich Cr7C3 carbides were preferentially attacked in comparison to the matrix. The effect of Cr is discussed with respect to the nature of the scales. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;li, ys (reprint author), chinese acad sci, inst met res, state key lab corros & protect, south campus, shenyang 110016, peoples r china
关键词	Fe Cr Ni Fe-based Alloy Waste Incineration Chloride Melts Corrosion High-temperature Corrosion Molten Chlorides Plants
URL	查看原文
WOS记录号	WOS:000180537100009
引用统计	被引频次：99[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/321006/35907
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. S. Li,Y. Niu,W. T. Wu. Accelerated corrosion of pure Fe, Ni, Cr and several Fe-based alloys induced by ZnCl2-KCl at 450 degrees C in oxidizing environment[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2003,345(1-2):64-71.
APA	Y. S. Li,Y. Niu,&W. T. Wu.(2003).Accelerated corrosion of pure Fe, Ni, Cr and several Fe-based alloys induced by ZnCl2-KCl at 450 degrees C in oxidizing environment.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,345(1-2),64-71.
MLA	Y. S. Li,et al."Accelerated corrosion of pure Fe, Ni, Cr and several Fe-based alloys induced by ZnCl2-KCl at 450 degrees C in oxidizing environment".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 345.1-2(2003):64-71.