Combined effect of composition and surface condition on corrosion behaviour of magnesium alloys AZ31 and AZ61

被引：62
作者：
Samaniego, Alejandro [1 ]
Llorente, Irene [1 ]
Feliu, Sebastian, Jr. [1 ]
机构：
[1] Ctr Nacl Invest Met CSIC, Madrid 28040, Spain
来源：
CORROSION SCIENCE | 2013年 / 68卷
关键词：
Magnesium; Alloy; Weight loss; Pitting corrosion; 3.5 WT.PERCENT NACL; ATMOSPHERIC CORROSION; MG; FILMS;
D O I：
10.1016/j.corsci.2012.10.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The work is an attempt to learn more about the role of several experimental variables in the corrosion of magnesium alloys in immersion tests carried out in 0.6 M NaCl. The effect of as-received and polished surface conditions, geometrical characteristics of the exposed area and different aluminium contents in the magnesium based alloys is considered. Results indicated that polished surfaces and AZ61 surfaces tend to develop corrosion slower than the respective as-received and AZ31 surfaces; these tendencies can change by prolonging exposure time. Filiform and localised corrosion are influenced by the presence of cut surfaces and small exposed areas, respectively. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：66 / 71
页数：6
相关论文
共 26 条
[1]   Corrosion of high purity Mg, Mg2Zn0.2Mn, ZE41 and AZ91 in Hank's solution at 37 °C [J].
Abidin, Nor Ishida Zainal ;
Atrens, Aleks D. ;
Martin, Darren ;
Atrens, Andrej .
CORROSION SCIENCE, 2011, 53 (11) :3542-3556
[2]   XPS study of the effect of aluminium on the atmospheric corrosion of the AZ31 magnesium alloy [J].
Feliu, S., Jr. ;
Merino, M. C. ;
Arrabal, R. ;
Coy, A. E. ;
Matykina, E. .
SURFACE AND INTERFACE ANALYSIS, 2009, 41 (03) :143-150
[3]   Effect of naturally formed oxide films and other variables in the early stages of Mg-alloy corrosion in NaCl solution [J].
Feliu, Sebastian, Jr. ;
Maffiotte, C. ;
Samaniego, Alejandro ;
Carlos Galvan, Juan ;
Barranco, Violeta .
ELECTROCHIMICA ACTA, 2011, 56 (12) :4554-4565
[4]   Atmospheric corrosion of magnesium alloys AZ31 and AZ61 under continuous condensation conditions [J].
Feliu, Sebastian, Jr. ;
Maffiotte, C. ;
Carlos Galvan, Juan ;
Barranco, Violeta .
CORROSION SCIENCE, 2011, 53 (05) :1865-1872
[5]   Formation and breakdown of surface films on magnesium and its alloys in aqueous solutions [J].
Hara, Nobuyoshi ;
Kobayashi, Yasuhiro ;
Kagaya, Daisuke ;
Akao, Noboru .
CORROSION SCIENCE, 2007, 49 (01) :166-175
[6]   The initial steps of atmospheric corrosion on magnesium alloy AZ91D [J].
Jonsson, Martin ;
Persson, Dan ;
Gubner, Rolf .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (11) :C684-C691
[7]  
Kayes A.P., 1999, JCSE J CORROSION SCI, V2
[8]   Influence of testing parameters on the corrosion rate of magnesium alloys [J].
Kühlein, M ;
Galovsky, U .
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2004, 55 (06) :444-448
[9]   The influence of carbon dioxide on the atmospheric corrosion of some magnesium alloys in the presence of NaCl [J].
Lindström, R ;
Svensson, JE ;
Johansson, LG .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (04) :B103-B107
[10]   The influence of yttrium (Y) on the corrosion of Mg-Y binary alloys [J].
Liu, Ming ;
Schmutz, Patrik ;
Uggowitzer, Peter J. ;
Song, Guangling ;
Atrens, Andrej .
CORROSION SCIENCE, 2010, 52 (11) :3687-3701
123