Effects of grain size on the corrosion resistance of wrought magnesium alloys containing neodymium

被引：411
作者：
Argade, G. R. [2 ,3 ]
Panigrahi, S. K. [2 ,3 ]
Mishra, R. S. [1 ,2 ,3 ]
机构：
[1] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA
[2] Missouri Univ Sci & Technol, Ctr Frict Stir Proc, Rolla, MO 65409 USA
[3] Missouri Univ Sci & Technol, Dept Mat Sci & Engn, Rolla, MO 65409 USA
来源：
CORROSION SCIENCE | 2012年 / 58卷
关键词：
Magnesium; Weight loss; SEM; Intergranular corrosion; BEHAVIOR; MICROCRYSTALLIZATION; ECAP;
D O I：
10.1016/j.corsci.2012.01.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A range of grain size from 70 mu m to 0.7 mu m was studied for corrosion resistance of Mg-Y-RE magnesium alloy using electrochemical and constant immersion testing in 3.5 wt.% NaCl solution. The linear polarization resistance (R-p) showed a clear trend of increasing R-p value with grain refinement. The ultrafine grained sample showed the most positive pitting potential as compared to coarse grained samples. One order of magnitude decrease in corrosion rate was observed between coarsest and ultrafine grained microstructure. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：145 / 151
页数：7
相关论文
共 32 条
  • [1] Effect of grain size and twins on corrosion behaviour of AZ31B magnesium alloy
    Aung, Naing Naing
    Zhou, Wei
    [J]. CORROSION SCIENCE, 2010, 52 (02) : 589 - 594
  • [2] Corrosion resistance of ultra fine-grained Ti
    Balyanov, A
    Kutnyakova, J
    Amirkhanova, NA
    Stolyarov, VV
    Valiev, RZ
    Liao, XZ
    Zhao, YH
    Jiang, YB
    Xu, HF
    Lowe, TC
    Zhu, YT
    [J]. SCRIPTA MATERIALIA, 2004, 51 (03) : 225 - 229
  • [3] Grain character influences on corrosion of ECAPed pure magnesium
    Birbilis, N.
    Ralston, K. D.
    Virtanen, S.
    Fraser, H. L.
    Davies, C. H. J.
    [J]. CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2010, 45 (03) : 224 - 230
  • [4] Effect of the number of ECAP pass time on the electrochemical properties of 1050 Al alloys
    Chung, MK
    Choi, YS
    Kim, JG
    Kim, YM
    Lee, JC
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 366 (02): : 282 - 291
  • [5] General and localized corrosion of magnesium alloys: A critical review
    Ghali, E
    Dietzel, W
    Kainer, KU
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2004, 13 (01) : 7 - 23
  • [6] THE DEFORMATION AND AGEING OF MILD STEEL .3. DISCUSSION OF RESULTS
    HALL, EO
    [J]. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION B, 1951, 64 (381): : 747 - 753
  • [7] Towards the development of heat-treatable high-strength wrought Mg alloys
    Hono, K.
    Mendis, C. L.
    Sasaki, T. T.
    Oh-ishi, K.
    [J]. SCRIPTA MATERIALIA, 2010, 63 (07) : 710 - 715
  • [8] Corrosion of pure Mg as a function of grain size and processing route
    Hoog, C. op't
    Birbilis, N.
    Estrin, Y.
    [J]. ADVANCED ENGINEERING MATERIALS, 2008, 10 (06) : 579 - 582
  • [9] Hoog CO, 2008, KEY ENG MATER, V384, P229, DOI 10.4028/www.scientific.net/KEM.384.229
  • [10] Comparative effect of grain size and texture on the corrosion behaviour of commercially pure titanium processed by equal channel angular pressing
    Hoseini, Majid
    Shahryari, Arash
    Omanovic, Sasha
    Szpunar, Jerzy A.
    [J]. CORROSION SCIENCE, 2009, 51 (12) : 3064 - 3067
1234