Influence of yttrium as a minority alloying element on the corrosion behavior in Fe-based bulk metallic glasses

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	Influence of yttrium as a minority alloying element on the corrosion behavior in Fe-based bulk metallic glasses
	Z. M. Wang; Y. T. Ma; J. Zhang; W. L. Hou; X. C. Chang; J. Q. Wang
	2008
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	54 期号:2 页码:261-269
摘要	The role of yttrium in corrosion behavior in an HCl solution was studied systematically by comparing bulk FeCrMoCB metallic glasses with and without yttrium. The corrosion resistance was very sensitive to minor yttrium addition. The material exhibits a detrimental effect on corrosion resistance at 0.5 at.% yttrium addition while a beneficial effect at more yttrium additions. Such effects are argued to be associated with variations of the semiconductor properties of passive film (i.e. defects concentration and band structure of passive film), induced by minority yttrium alloying element doping. It was shown that there exhibits a bi-layer structure of passive film on Fe-based metallic glasses. The outer layer with high valence cations is responsible for the dissolution behavior of the passive film, whereas the inner layer with doped oxides connects with the semiconductor properties. This result presents us an important hint that the corrosion resistance of metallic glasses can be improved by elaborately tailoring the defect structure of passive film via proper additions of minor alloying elements. (c) 2008 Elsevier Ltd. All rights reserved.
部门归属	[wang, z. m.; zhang, j.; hou, w. l.; chang, x. c.; wang, j. q.] cas, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [ma, y. t.] cas, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;wang, jq (reprint author), cas, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;jqwang@imr.ac.cn
关键词	Amorphous Steel Yttrium Minor Addition Passive Film Semiconductor Properties 8.5 Buffer Solution Passive Films b Alloys In-situ Mo Fe-20cr Steel Spectroscopy Dissolution Alpha-al2o3
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WOS记录号	WOS:000263282400017
引用统计	被引频次：96[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/321006/33177
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. M. Wang,Y. T. Ma,J. Zhang,et al. Influence of yttrium as a minority alloying element on the corrosion behavior in Fe-based bulk metallic glasses[J]. Electrochimica Acta,2008,54(2):261-269.
APA	Z. M. Wang,Y. T. Ma,J. Zhang,W. L. Hou,X. C. Chang,&J. Q. Wang.(2008).Influence of yttrium as a minority alloying element on the corrosion behavior in Fe-based bulk metallic glasses.Electrochimica Acta,54(2),261-269.
MLA	Z. M. Wang,et al."Influence of yttrium as a minority alloying element on the corrosion behavior in Fe-based bulk metallic glasses".Electrochimica Acta 54.2(2008):261-269.