Applications of scanning electrochemical microscopy (SECM) for local characterization of AZ31 surface during corrosion in a buffered media

被引：68
|
作者：
Jamali, Sina S. [1 ]
Moulton, Simon E. [1 ]
Tallman, Dennis E. [2 ]
Forsyth, Maria [3 ]
Weber, Jan [4 ]
Wallace, Gordon G. [1 ]
机构：
[1] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Intelligent Polymer Res Inst, AIIM Facil, Wollongong, NSW 2522, Australia
[2] N Dakota State Univ, Dept Coatings & Polymer Mat, Fargo, ND 58108 USA
[3] Deakin Univ, Inst Frontier Mat, ARC Ctr Excellence Electromat Sci, Burwood, Vic 3125, Australia
[4] Boston Sci, NL-6229 GS Maastricht, Netherlands
来源：
CORROSION SCIENCE | 2014年 / 86卷
基金：
澳大利亚研究理事会;
关键词：
Magnesium; Electrochemical calculation; Passive films; Hydrogen absorption; Interfaces; MAGNESIUM ALLOY; AC-SECM; IMPEDANCE SPECTROSCOPY; KELVIN PROBE; IN-VIVO; BEHAVIOR; VISUALIZATION; MG; CHLORIDE; PERFORMANCE;
D O I：
10.1016/j.corsci.2014.04.035
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Different modes of scanning electrochemical mapping (SECM) such as surface generation/tip collection (SG/TC), amperometry, AC-SECM and potentiometry were employed to characterize the active/passive domains, hydrogen gas (H-2) evolution and local pH on a corroding surface of AZ31 in simulated biological fluid (SBF). It was found that the main domains of H-2 evolution are associated with lower insulating properties of the surface as well as higher local pH. The near surface pH was found to be highly alkaline indicating that, even in a buffered solution such as SBF, the local pH on a corroding AZ31 surface can be significantly different to the bulk pH. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：93 / 100
页数：8
相关论文
共 27 条
  • [1] Applications of Scanning Electrochemical Microscopy (SECM) for the investigation of local corrosion processes
    Santana, Juan J.
    Gonzalez, Sergio
    Izquierdo, Javier
    Souto, Ricardo M.
    AFINIDAD, 2011, 68 (551) : 44 - 49
  • [2] Atomic force microscopy - Scanning electrochemical microscopy (AFM-SECM) for nanoscale topographical and electrochemical characterization: Principles, applications and perspectives
    Shi, Xiaonan
    Qing, Weihua
    Marhaba, Taha
    Zhang, Wen
    ELECTROCHIMICA ACTA, 2020, 332
  • [3] z Scanning Electrochemical Microscopy (SECM) Study of the Electrochemical Behavior of Anodized AZ31B Magnesium Alloy in Simulated Body Fluid
    de Oliveira, Leandro Antonio
    Pereira da Silva, Rejane Maria
    Antunes, Renato Altobelli
    MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, 2019, 22 (05):
  • [4] The corrosion behavior of AZ31 alloy in chloride and sulfate media - A comparative study through electrochemical investigations
    Acharya, M. Gururaj
    Shetty, A. Nityanansda
    JOURNAL OF MAGNESIUM AND ALLOYS, 2019, 7 (01) : 98 - 112
  • [5] Effect of laser shock processing on surface morphology and electrochemical corrosion resistance of AZ31 and AZ91 alloys
    Zhang, Qing-Lai
    Bao, Shi-Xi
    Wang, Rong
    Qian, Yang
    Zhang, Yong-Kang
    Li, Xing-Cheng
    Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2014, 24 (10): : 2465 - 2473
  • [6] Surface microstructure and corrosion characterization of AZ31 magnesium alloys fabricated by laser surface-modification
    Luo, Yiming
    Huang, Jiankang
    Yu, Xiaoquan
    Xie, Yuhang
    Zhang, Jia
    Yu, Shurong
    Fan, Ding
    Liu, Jian
    JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 994
  • [7] Surface Characterization and Corrosion Resistance of Biomedical AZ31 Mg Alloy Treated by Microarc Fluorination
    Sun, Lin
    Zhao, Bing Cheng
    Wang, Teng
    Cui, Jia Yi
    Zhang, ShuXin
    Li, Feng
    Zhang, Qianqian
    Cai, HongXin
    Jiang, Heng Bo
    Lee, Eui-Seok
    SCANNING, 2020, 2020
  • [8] In situ electrochemical deposition enables dense polypyrrole grown on AZ31 surface for improving corrosion resistance
    Huang, Hao
    Hou, Lifeng
    Du, Huayun
    Wei, Huan
    Liu, Xiaoda
    Wang, Qian
    Wei, Yinghui
    MATERIALS LETTERS, 2024, 362
  • [9] Local surface patterning by chitosan-stabilized gold nanoparticles using the direct mode of scanning electrochemical microscopy (SECM)
    Tamar Danieli
    Daniel Mandler
    Journal of Solid State Electrochemistry, 2013, 17 : 2989 - 2997
  • [10] Degradation of AZ31 and AZ91 magnesium alloys in different physiological media: Effect of surface layer stability on electrochemical behaviour
    Mena-Morcillo, Emmanuel
    Veleva, Lucien
    JOURNAL OF MAGNESIUM AND ALLOYS, 2020, 8 (03) : 667 - 675
123