skip to main content

DOE PAGESDOE PAGES

Title: Characterization of Localized Filament Corrosion Products at the Anodic Head on a Model Mg-Zn-Zr Alloy Surface

In this study, localized filament corrosion products at the anodic head on a model Mg-1%Zn-0.4%Zr alloy surface were characterized by electron microscopy techniques of site-specific lamella prepared by focused ion beam milling. It is revealed that the anodic head propagates underneath a largely intact thin and dense MgO surface film and comprises dense aggregates of nano-crystalline MgO within a nano-porous Mg(OH) 2 network. In conclusion, the findings contribute new supportive direct imaging insight into the source of the enhanced H 2 evolution that accompanies anodic dissolution of Mg and its alloys.
Authors:
 [1] ;  [1] ;  [2] ;  [2] ;  [1] ;  [1]
  1. McMaster University, Hamilton, ON (Canada). Department of Materials Science and Engineering
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Corrosion
Additional Journal Information:
Journal Volume: 73; Journal Issue: 5; Journal ID: ISSN 0010-9312
Publisher:
NACE International
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; corrosion; filaments; magnesium alloy; transmission electron microscopy
OSTI Identifier:
1358000

Rossouw, David, Fu, Dong, Leonard, Donovan N., Brady, Michael P., Botton, Gianluigi A., and Kish, Joseph R.. Characterization of Localized Filament Corrosion Products at the Anodic Head on a Model Mg-Zn-Zr Alloy Surface. United States: N. p., Web. doi:10.5006/2268.
Rossouw, David, Fu, Dong, Leonard, Donovan N., Brady, Michael P., Botton, Gianluigi A., & Kish, Joseph R.. Characterization of Localized Filament Corrosion Products at the Anodic Head on a Model Mg-Zn-Zr Alloy Surface. United States. doi:10.5006/2268.
Rossouw, David, Fu, Dong, Leonard, Donovan N., Brady, Michael P., Botton, Gianluigi A., and Kish, Joseph R.. 2017. "Characterization of Localized Filament Corrosion Products at the Anodic Head on a Model Mg-Zn-Zr Alloy Surface". United States. doi:10.5006/2268. https://www.osti.gov/servlets/purl/1358000.
@article{osti_1358000,
title = {Characterization of Localized Filament Corrosion Products at the Anodic Head on a Model Mg-Zn-Zr Alloy Surface},
author = {Rossouw, David and Fu, Dong and Leonard, Donovan N. and Brady, Michael P. and Botton, Gianluigi A. and Kish, Joseph R.},
abstractNote = {In this study, localized filament corrosion products at the anodic head on a model Mg-1%Zn-0.4%Zr alloy surface were characterized by electron microscopy techniques of site-specific lamella prepared by focused ion beam milling. It is revealed that the anodic head propagates underneath a largely intact thin and dense MgO surface film and comprises dense aggregates of nano-crystalline MgO within a nano-porous Mg(OH)2 network. In conclusion, the findings contribute new supportive direct imaging insight into the source of the enhanced H2 evolution that accompanies anodic dissolution of Mg and its alloys.},
doi = {10.5006/2268},
journal = {Corrosion},
number = 5,
volume = 73,
place = {United States},
year = {2017},
month = {2}
}