Influence of annealing temperature on beta-(Al3Mg2) phase precipitation and corrosion properties of sensitised Al-6.8wt% Mg alloy is investigated. Sensitisation of specimens annealed at 320 degrees C results in IGC and SCC susceptibility. Microstructural characterization shows fine precipitation of Mg-rich phase forming nearly continuous film at grain boundaries, despite small precipitated fraction (0.5%), and grain boundary faceting. Sensitised specimens annealed at 265 degrees C are IGC susceptible, but SCC resistant. Precipitation at grain boundaries is discrete, although the precipitated fraction is greater (3%) than in specimens annealed at 320 degrees C. Potentiodynamic measurements show that of all measured parameters, charge density is in the strongest correlation with the NAMLT and SSRT results.
Keywords:
annealing temperature / corrosion / Microstructural characterization / Potentiodynamic measurements
Source:
Materials and Corrosion-Werkstoffe Und Korrosion, 2016, 67, 8, 867-875
Publisher:
Wiley
Funding / projects:
Ministry of Education, Science and Technological Development, Republic of Serbia
TY - JOUR
AU - Radetić, Tamara
AU - Popović, M.
AU - Jegdić, Bore
AU - Romhanji, E.
PY - 2016
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1919
AB - Influence of annealing temperature on beta-(Al3Mg2) phase precipitation and corrosion properties of sensitised Al-6.8wt% Mg alloy is investigated. Sensitisation of specimens annealed at 320 degrees C results in IGC and SCC susceptibility. Microstructural characterization shows fine precipitation of Mg-rich phase forming nearly continuous film at grain boundaries, despite small precipitated fraction (0.5%), and grain boundary faceting. Sensitised specimens annealed at 265 degrees C are IGC susceptible, but SCC resistant. Precipitation at grain boundaries is discrete, although the precipitated fraction is greater (3%) than in specimens annealed at 320 degrees C. Potentiodynamic measurements show that of all measured parameters, charge density is in the strongest correlation with the NAMLT and SSRT results.
PB - Wiley
T2 - Materials and Corrosion-Werkstoffe Und Korrosion
T1 - Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy
VL - 67
IS - 8
SP - 867
EP - 875
DO - 10.1002/maco.201508709
ER -
@article{
author = "Radetić, Tamara and Popović, M. and Jegdić, Bore and Romhanji, E.",
year = "2016",
abstract = "Influence of annealing temperature on beta-(Al3Mg2) phase precipitation and corrosion properties of sensitised Al-6.8wt% Mg alloy is investigated. Sensitisation of specimens annealed at 320 degrees C results in IGC and SCC susceptibility. Microstructural characterization shows fine precipitation of Mg-rich phase forming nearly continuous film at grain boundaries, despite small precipitated fraction (0.5%), and grain boundary faceting. Sensitised specimens annealed at 265 degrees C are IGC susceptible, but SCC resistant. Precipitation at grain boundaries is discrete, although the precipitated fraction is greater (3%) than in specimens annealed at 320 degrees C. Potentiodynamic measurements show that of all measured parameters, charge density is in the strongest correlation with the NAMLT and SSRT results.",
publisher = "Wiley",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy",
volume = "67",
number = "8",
pages = "867-875",
doi = "10.1002/maco.201508709"
}
Radetić, T., Popović, M., Jegdić, B.,& Romhanji, E.. (2016). Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy. in Materials and Corrosion-Werkstoffe Und Korrosion
Wiley., 67(8), 867-875.
https://doi.org/10.1002/maco.201508709
Radetić T, Popović M, Jegdić B, Romhanji E. Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy. in Materials and Corrosion-Werkstoffe Und Korrosion. 2016;67(8):867-875.
doi:10.1002/maco.201508709 .
Radetić, Tamara, Popović, M., Jegdić, Bore, Romhanji, E., "Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy" in Materials and Corrosion-Werkstoffe Und Korrosion, 67, no. 8 (2016):867-875,
https://doi.org/10.1002/maco.201508709 . .
