Accelerated corrosion of Fe-xCr-10Al alloys containing 0-20 at.% Cr induced by sulfur and chlorine in a reducing atmosphere at 600 degrees C

IMR OpenIR

	Accelerated corrosion of Fe-xCr-10Al alloys containing 0-20 at.% Cr induced by sulfur and chlorine in a reducing atmosphere at 600 degrees C
	W. M. Lu; T. J. Pan; Y. Niu
	2008
发表期刊	Oxidation of Metals
ISSN	0030-770X
卷号	69 期号:1-2 页码:63-76
摘要	The corrosion behavior of five Fe-xCr-Al alloys with a constant Al content of 10 at.% and Cr contents ranging from 0 at.% to 20 at.% was examined at 600 degrees C in a H-2-HCl-H2S-CO2 gas mixture providing 3.7 x 10(-22) atm O-2, 2.4 x 10(-14) atm Cl-2 and 3.9 x 10(-9) stop atm S-2. All the alloys formed duplex scales containing an outermost layer of iron oxide plus an inner layer composed of mixtures of the oxides of all the alloy components. Besides, a region of internal attack of Al or Al + Cr, whose depth decreased with increasing Cr content, formed in all the alloys. The simultaneous presence of chlorine and sulfur in the gas mixture significantly accelerated the corrosion of all the alloys with respect to their oxidation in a simpler H-2-CO2 mixture providing the same oxygen pressure, by forming thick and cracked scales. The effect was particularly large for the high-Cr alloys due to their inability to form external protective alumina scales in the present gas mixture.
部门归属	[lu, w. m.; pan, t. j.; niu, y.] inst met sci & technol, state key lab corros & protect, shenyang 110016, peoples r china. [pan, t. j.] jiangsu polytech univ, dept mat sci & engn, changzhou, jiangsu, peoples r china.;niu, y (reprint author), inst met sci & technol, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;yniu@imr.ac.cn
关键词	Fe-xcr-10al Oxidation Chlorine And Sulfur Effect High-oxidant Pressures Al-y Alloys High-temperature Corrosion Most-reactive Components Internal Oxidation Hydrogen-chloride External Oxidation Ternary Alloys Iron Oxygen
URL	查看原文
WOS记录号	WOS:000252158000004
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/321006/33000
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. M. Lu,T. J. Pan,Y. Niu. Accelerated corrosion of Fe-xCr-10Al alloys containing 0-20 at.% Cr induced by sulfur and chlorine in a reducing atmosphere at 600 degrees C[J]. Oxidation of Metals,2008,69(1-2):63-76.
APA	W. M. Lu,T. J. Pan,&Y. Niu.(2008).Accelerated corrosion of Fe-xCr-10Al alloys containing 0-20 at.% Cr induced by sulfur and chlorine in a reducing atmosphere at 600 degrees C.Oxidation of Metals,69(1-2),63-76.
MLA	W. M. Lu,et al."Accelerated corrosion of Fe-xCr-10Al alloys containing 0-20 at.% Cr induced by sulfur and chlorine in a reducing atmosphere at 600 degrees C".Oxidation of Metals 69.1-2(2008):63-76.