Corrosion effect of allylthiourea on bulk nanocrystalline ingot iron in diluted acidic sulphate solution

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	Corrosion effect of allylthiourea on bulk nanocrystalline ingot iron in diluted acidic sulphate solution
	C. B. Shen; S. G. Wang; H. Y. Yang; K. Long; F. H. Wang
	2007
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	52 期号:12 页码:3950-3957
摘要	The effect of allylthiourea (ATU) on the corrosion behaviors of bulk nanocrystalline ingot iron (BNII) fabficated from conventional polycrystalline ingot iron (CPII) by severe rolling technique was studied. In the corrosive solution-0.1 mol L-1 H2SO4 + 0.25 mol L-1 Na2SO4 inhibited by ATU at ambient temperature, for CPII, when immersed for as short as 5 min, an inductive loop appears at different concentrations at the Nyquist complex planes; for BNII only a simple capacitance loop appears in the Nyqusit plot at the same period. This difference on the time effect is attributed to the higher volume fractions of defects, which are caused by severe rolling technique compared with its coarse counterpart-CPII. With the elongation of the immersion time, for BNII, two time constants appear in the Nyquist plot; for CPII, the impedance spectrum shows a slightly depressed semicircular shape, and a critical concentration is observed. The corrosion effect of ATU for BNII is really negative in comparison with CPII. (c) 2006 Elsevier Ltd. All rights reserved.
部门归属	dalian jiaotong univ, sch mat sci & engn, dalian 116028, peoples r china. chinese acad sci, inst met res, state key lab corros & protect met, shenyang 110016, peoples r china. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, inst met res, int ctr mat phys, shenyang 110016, peoples r china.;shen, cb (reprint author), dalian jiaotong univ, sch mat sci & engn, 794 huanghe rd,post box 392, dalian 116028, peoples r china;shencb@djtu.edu.cn
关键词	Bulk Nanocrystalline Ingot Iron (Bnii) Allylthiourea (Atu) Corrosion Effect Acidic Sulphate Solution Electrochemical Techniques Impedance Data Mild-steel Pure Iron Inhibition Hcl Environments Electrodes Dispersion Interface
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WOS记录号	WOS:000245365900009
引用统计	被引频次：18[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/321006/33802
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. B. Shen,S. G. Wang,H. Y. Yang,et al. Corrosion effect of allylthiourea on bulk nanocrystalline ingot iron in diluted acidic sulphate solution[J]. Electrochimica Acta,2007,52(12):3950-3957.
APA	C. B. Shen,S. G. Wang,H. Y. Yang,K. Long,&F. H. Wang.(2007).Corrosion effect of allylthiourea on bulk nanocrystalline ingot iron in diluted acidic sulphate solution.Electrochimica Acta,52(12),3950-3957.
MLA	C. B. Shen,et al."Corrosion effect of allylthiourea on bulk nanocrystalline ingot iron in diluted acidic sulphate solution".Electrochimica Acta 52.12(2007):3950-3957.