Accelerated corrosion of pure Fe induced by gaseous ZnCl2 at high tempreratures

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	Accelerated corrosion of pure Fe induced by gaseous ZnCl2 at high tempreratures
	H. T. Ma; L. Wang; Y. S. Li
	2003
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	19 期号:5 页码:456-458
摘要	ZnCl2 is one of the dominant aggressive species in waste incinerators or other advanced combustion power generation systems. In this study, the influence of minor amount of gaseous ZnCl2 on the corrosion behavior of pure iron was examined at 600similar to800degreesC in a pure oxygen environment. The corrosion rate usually increased markedly with increasing temperatures at a fixed ZnCl2 content or with increased ZnCl2 contents at a constant temperature. The corrosion products were composed of a thin outer layer of ZnFe2O4 spinel and an inner zone with a much thicker layer of Fe2O3, which exhibited a serious separation from the matrix. Moreover, a molten FeCl2 layer was observed at the scale substrate interface. The accelerated corrosion of pure iron was attributed to the existence of FeCl2 with low melting point on the metal surface, which destroyed the cohesion and adhesion of the oxide scale. The results are discussed in relation to the thermodynamic factors and the presence of volatile compounds in the reaction system.
部门归属	dalian univ technol, dept mat engn, dalian 116024, peoples r china. cas, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;ma, ht (reprint author), dalian univ technol, dept mat engn, dalian 116024, peoples r china, peoples r china
关键词	High Temperature Corrosion Oxidation Chlorination Fe Gaseous Zncl2 Environments Chlorine Steels Alloys
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WOS记录号	WOS:000185818700023
引用统计	被引频次：3[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/321006/35961
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. T. Ma,L. Wang,Y. S. Li. Accelerated corrosion of pure Fe induced by gaseous ZnCl2 at high tempreratures[J]. Journal of Materials Science & Technology,2003,19(5):456-458.
APA	H. T. Ma,L. Wang,&Y. S. Li.(2003).Accelerated corrosion of pure Fe induced by gaseous ZnCl2 at high tempreratures.Journal of Materials Science & Technology,19(5),456-458.
MLA	H. T. Ma,et al."Accelerated corrosion of pure Fe induced by gaseous ZnCl2 at high tempreratures".Journal of Materials Science & Technology 19.5(2003):456-458.