Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy

Radetić, Tamara; Popović, M.; Jegdić, Bore; Romhanji, E.

doi:10.1002/maco.201508709

2016

1919acc.pdf (2.247Mb)

Authors

Radetić, Tamara
Popović, M.
Jegdić, Bore

Romhanji, E.

Article (Accepted Version)

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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.

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
Design of processing and welding of the high strength Al-Mg alloys for road and railway trasportation applications (RS-34018)
Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy - DE-AC02-05CH11231

Note:

This is the peer reviewed version of the following article: 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. Materials and Corrosion-Werkstoffe Und Korrosion. 2016;67(8):867-875, which has been published in final form at https://doi.org/10.1002/maco.201508709 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."
The published version: https://cer.ihtm.bg.ac.rs/handle/123456789/1919

Related info:

Version of
https://cer.ihtm.bg.ac.rs/handle/123456789/1919

DOI: 10.1002/maco.201508709

ISSN: 0947-5117

WoS: 000383643000009

Scopus: 2-s2.0-84956862974

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	6
	4

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, M.
AU  - Jegdić, Bore
AU  - Romhanji, E.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4382
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 . .