Effect of Hydrostatic Pressure on the Corrosion Behavior of a Low Alloy Steel

IMR OpenIR

	Effect of Hydrostatic Pressure on the Corrosion Behavior of a Low Alloy Steel
	H. J. Sun; L. Liu; Y. Li; F. H. Wang
	2013
发表期刊	Journal of the Electrochemical Society
ISSN	0013-4651
卷号	160 期号:3 页码:C89-C96
摘要	The effect of hydrostatic pressure (HP) on the corrosion behavior of low alloy steel in 3.5% NaCl was studied in a pressure vessel using gravimetric, electrochemical and imaging techniques. The results indicate that HP influences the corrosion behavior of steel to different extents all through the immersion period: in the initial immersion (first 5 days), the corrosion rate at 35 atm is obviously higher than that at 1 atm; which is followed by a period of no obvious difference between the two pressures; and after 15 days, the corrosion rate at 35 atm is only slightly higher than that at 1 atm. Generally, it stimulates the corrosion process, especially during the initial immersion. Further study reveals that the increased corrosion rate at high HP during the initial immersion could be related to the enhanced Cl- adsorption. After, the formation of integrated rust layer, HP affects the chemical and physical properties of rust layer. Consequently, it is more conducive for the transport of Cl- at high HP, which further gives rise to the accelerated corrosion. This study aims to be conducive to the fundamental understanding of the corrosion behavior of steel in deep ocean environments. (C) 2013 The Electrochemical Society. [DOI: 10.1149/2.040303jes] All rights reserved.
部门归属	[sun, haijing ; liu, li ; li, ying ; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; sun, hj (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; liliu@imr.ac.cn ; liying@imr.ac.cn
关键词	Slightly Alkaline-solutions Sea-water Protective Ability Passive Film Carbon Steel Mild-steel Layer Iron Environments Temperature
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71477
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. J. Sun,L. Liu,Y. Li,et al. Effect of Hydrostatic Pressure on the Corrosion Behavior of a Low Alloy Steel[J]. Journal of the Electrochemical Society,2013,160(3):C89-C96.
APA	H. J. Sun,L. Liu,Y. Li,&F. H. Wang.(2013).Effect of Hydrostatic Pressure on the Corrosion Behavior of a Low Alloy Steel.Journal of the Electrochemical Society,160(3),C89-C96.
MLA	H. J. Sun,et al."Effect of Hydrostatic Pressure on the Corrosion Behavior of a Low Alloy Steel".Journal of the Electrochemical Society 160.3(2013):C89-C96.