The use of microcapillary techniques to study the corrosion resistance of AZ91 magnesium alloy at the microscale

被引：58
|
作者：
Krawiec, H. [1 ]
Stanek, S. [1 ]
Vignal, V. [2 ]
Lelito, J. [1 ]
Suchy, J. S. [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Foundry Engn, PL-30059 Krakow, Poland
[2] Univ Bourgogne, CNRS, UMR 5209, ICB Lab Interdisciplinaire Carnot Bourgogne, F-21078 Dijon, France
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 10期
关键词：
Magnesium; Polarization; AFM; Pitting corrosion; Eutectic; LOCALIZED CORROSION; ELECTROCHEMICAL-BEHAVIOR; MECHANICAL-PROPERTIES; PITTING CORROSION; PURE MAGNESIUM; DIE-CAST; MICROSTRUCTURE; MG; PHASE; ADDITIONS;
D O I：
10.1016/j.corsci.2011.05.054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The AZ91 alloy is composed of Mg-17(Al, Zn)(12) precipitates, an eutectic phase around these precipitates, AlMn intermetallic particles and an alpha-Mg solid solution (matrix). The corrosion behaviour of AZ91 was investigated at the microscale by means of the electrochemical microcell technique, which uses extremely small capillaries (diameters between 5 and 10 mu m). Experiments were conducted in 0.1 M NaClO4 at 25 degrees C. The beta-Mg-17(Al, Zn)(12) precipitates were found to have the highest corrosion resistance, whereas the eutectic phase was very active (pitting potential of approximately -1400 mV vs. Ag/AgCl). The alpha-Mg solid solution displayed better corrosion resistance than the eutectic phase. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3108 / 3113
页数：6
相关论文
共 50 条
  • [1] The use of micro-capillary techniques to study the corrosion resistance of AZ91 magnesium alloy at the micro-scale
    Krawiec, Halina
    Stanek, Slawomir
    Vignal, Vincent
    Lelito, Janusz
    Suchy, Jozef Szczepan
    [J]. OCHRONA PRZED KOROZJA, 2009, 52 (11): : 458 - 460
  • [2] Corrosion Behavior of AZ91 Magnesium Alloy
    Yim, Chang Dong
    Kim, Young Min
    Park, Sung Hyuk
    You, Bong Sun
    [J]. KOREAN JOURNAL OF METALS AND MATERIALS, 2012, 50 (09): : 619 - 627
  • [3] Corrosion resistance of titanium ion implanted AZ91 magnesium alloy
    Liu, Chengiong
    Xin, Yunchang
    Tian, Xiubo
    Zhao, J.
    Chu, Paul K.
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2007, 25 (02): : 334 - 339
  • [4] Effect of neodymium on microstructure and corrosion resistance of AZ91 magnesium alloy
    Y. L. Song
    Yao Hui Liu
    S. R. Yu
    X. Y. Zhu
    S. H. Wang
    [J]. Journal of Materials Science, 2007, 42 : 4435 - 4440
  • [5] Effect of Er on microstructure and corrosion resistance of AZ91 magnesium alloy
    Liu, Chu-Ming
    Ge, Wei-Wei
    Li, Hui-Zhong
    Chen, Zhi-Yong
    Wang, Rong
    Gao, Yan-Rui
    [J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2009, 19 (05): : 847 - 853
  • [6] An Effect of Heat Treatment on Corrosion Resistance of AZ91 Magnesium Alloy
    Polis-Olejniczak, Anna
    Malik, Marcin A.
    [J]. OCHRONA PRZED KOROZJA, 2010, 53 (11): : 657 - 657
  • [7] Effect of neodymium on microstructure and corrosion resistance of AZ91 magnesium alloy
    Song, Y. L.
    Liu, Yao Hui
    Yu, S. R.
    Zhu, X. Y.
    Wang, S. H.
    [J]. JOURNAL OF MATERIALS SCIENCE, 2007, 42 (12) : 4435 - 4440
  • [8] Susceptibility of AZ91 magnesium alloy to pitting corrosion
    Polis-Olejniczak, Anna
    Malik, Marcin A.
    [J]. OCHRONA PRZED KOROZJA, 2009, 52 (11): : 572 - 572
  • [9] Corrosion characteristics of AZ91 magnesium alloy weldments
    Xu, R. Z.
    Song, G.
    Wang, Z.
    [J]. MATERIALS RESEARCH INNOVATIONS, 2009, 13 (04) : 441 - 447
  • [10] Influence of Cerium on Corrosion of AZ91 Magnesium Alloy
    刘生发
    康柳根
    刘林艳
    黄尚宇
    韩辉
    吕亚清
    [J]. Journal of Rare Earths, 2006, (S2) : 222 - 227
12345