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Effects of magnesium chloride-based multicomponent salts on atmospheric corrosion of aluminum alloy 2024
B. B. Wang; Z. Y. Wang; W. Han; C. Wang; W. Ke
2013
Source PublicationTransactions of Nonferrous Metals Society of China
ISSN1003-6326
Volume23Issue:4Pages:1199-1208
AbstractAtmospheric corrosion of aluminum alloy 2024 (AA2024) with salt lake water was simulated through a laboratory-accelerated test of cyclic wet-dry and electrochemical techniques. Effects of the soluble magnesium salt contained in the salt water were investigated by scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive spectrometer (EDS), electron probe micro analyzer (EPMA), X-ray diffraction (XRD), infrared transmission spectroscope (IR), and atmospheric corrosion monitor (ACM). The results showed that, with the deposition, atmospheric corrosion of AA2024 could occur when the relative humidity (RH) was lower than 30%. A main crystalline component of corrosion products, layered double hydroxides (LDH), [Mg1-xAlx(OH)(2)]Cl-x+(x)-center dot mH(2)O (LDH-Cl), was determined, which meant that magnesium ion played an important role in the corrosion process. It not only facilitated the corrosion as a result of deliquescence, but also was involved in the corrosion process as a reactant.
description.department[wang, bin-bin ; wang, zhen-yao ; han, wei ; wang, chuan ; ke, wei] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; wang, zy (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; zhywang@imr.ac.cn
KeywordAluminum Alloy 2024 Atmospheric Corrosion Magnesium Chloride Relative Humidity Corrosion Products Lake Atmosphere Carbon-steel Behavior Environment Products Deposits Nacl
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71512
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
B. B. Wang,Z. Y. Wang,W. Han,et al. Effects of magnesium chloride-based multicomponent salts on atmospheric corrosion of aluminum alloy 2024[J]. Transactions of Nonferrous Metals Society of China,2013,23(4):1199-1208.
APA B. B. Wang,Z. Y. Wang,W. Han,C. Wang,&W. Ke.(2013).Effects of magnesium chloride-based multicomponent salts on atmospheric corrosion of aluminum alloy 2024.Transactions of Nonferrous Metals Society of China,23(4),1199-1208.
MLA B. B. Wang,et al."Effects of magnesium chloride-based multicomponent salts on atmospheric corrosion of aluminum alloy 2024".Transactions of Nonferrous Metals Society of China 23.4(2013):1199-1208.
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