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Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content

Authorized Users Only
2002
Authors
Popović, Miljana
Romhanji, Endre
Article (Published version)
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Abstract
Slow strain rate testing (SSRT) was used to study the effect of the microstructure on the stress corrosion cracking (SCC) susceptibility of Al-Mg alloy sheet containing 6.8 wt.% Mg. In the cold-rolled and fully annealed conditions, high SCC susceptibility was experienced. In those cases the ductility was strongly affected by the presence of corrosive environment (for hard temper: El(air) = 13.6%, El(SCC) = 0.6%; for annealed condition: El(air), = 24.1-25.3%, El(SCC) = 3.2-4.2%) and the elongation loss was great, E-loss = 81.7-95.6%. It is supposed that the high SCC susceptibility results from a continuous network of the P-phase (Mg5Al8) precipitate at grain boundaries for the annealed temper, and heavy precipitation of P-phase along the planes of localized deformation for the hard temper. High SCC resistance attained after thermal exposure at the temperature range 225-285 degreesC (stabilized condition). The ductility was almost unaffected by the presence of corrosive environment (El(a...ir), = 12.8-23.2%, El(SCC) = 12.8-22%) and the elongation loss was small, E-loss lt 7%. High SCC resistance was related to the stabilized structure, which causes discontinuous P-phase (Mg5Al8) precipitation in a globular form, uniformly distributed throughout the structure.

Keywords:
Al-Mg alloy / stress corrosion cracking (SCC) / slow strain rate testing (SSRT)
Source:
Journal of Materials Processing Technology, 2002, 125, 275-280
Publisher:
  • Elsevier Science Sa, Lausanne

DOI: 10.1016/S0924-0136(02)00398-9

ISSN: 0924-0136

WoS: 000178405200037

Scopus: 2-s2.0-15344351296
[ Google Scholar ]
66
47
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/455
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Popović, Miljana
AU  - Romhanji, Endre
PY  - 2002
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/455
AB  - Slow strain rate testing (SSRT) was used to study the effect of the microstructure on the stress corrosion cracking (SCC) susceptibility of Al-Mg alloy sheet containing 6.8 wt.% Mg. In the cold-rolled and fully annealed conditions, high SCC susceptibility was experienced. In those cases the ductility was strongly affected by the presence of corrosive environment (for hard temper: El(air) = 13.6%, El(SCC) = 0.6%; for annealed condition: El(air), = 24.1-25.3%, El(SCC) = 3.2-4.2%) and the elongation loss was great, E-loss = 81.7-95.6%. It is supposed that the high SCC susceptibility results from a continuous network of the P-phase (Mg5Al8) precipitate at grain boundaries for the annealed temper, and heavy precipitation of P-phase along the planes of localized deformation for the hard temper. High SCC resistance attained after thermal exposure at the temperature range 225-285 degreesC (stabilized condition). The ductility was almost unaffected by the presence of corrosive environment (El(air), = 12.8-23.2%, El(SCC) = 12.8-22%) and the elongation loss was small, E-loss  lt  7%. High SCC resistance was related to the stabilized structure, which causes discontinuous P-phase (Mg5Al8) precipitation in a globular form, uniformly distributed throughout the structure.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Materials Processing Technology
T1  - Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content
EP  - 280
SP  - 275
VL  - 125
DO  - 10.1016/S0924-0136(02)00398-9
ER  - 
@article{
author = "Popović, Miljana and Romhanji, Endre",
year = "2002",
abstract = "Slow strain rate testing (SSRT) was used to study the effect of the microstructure on the stress corrosion cracking (SCC) susceptibility of Al-Mg alloy sheet containing 6.8 wt.% Mg. In the cold-rolled and fully annealed conditions, high SCC susceptibility was experienced. In those cases the ductility was strongly affected by the presence of corrosive environment (for hard temper: El(air) = 13.6%, El(SCC) = 0.6%; for annealed condition: El(air), = 24.1-25.3%, El(SCC) = 3.2-4.2%) and the elongation loss was great, E-loss = 81.7-95.6%. It is supposed that the high SCC susceptibility results from a continuous network of the P-phase (Mg5Al8) precipitate at grain boundaries for the annealed temper, and heavy precipitation of P-phase along the planes of localized deformation for the hard temper. High SCC resistance attained after thermal exposure at the temperature range 225-285 degreesC (stabilized condition). The ductility was almost unaffected by the presence of corrosive environment (El(air), = 12.8-23.2%, El(SCC) = 12.8-22%) and the elongation loss was small, E-loss  lt  7%. High SCC resistance was related to the stabilized structure, which causes discontinuous P-phase (Mg5Al8) precipitation in a globular form, uniformly distributed throughout the structure.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Materials Processing Technology",
title = "Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content",
pages = "280-275",
volume = "125",
doi = "10.1016/S0924-0136(02)00398-9"
}
Popović, M.,& Romhanji, E.. (2002). Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content. in Journal of Materials Processing Technology
Elsevier Science Sa, Lausanne., 125, 275-280.
https://doi.org/10.1016/S0924-0136(02)00398-9
Popović M, Romhanji E. Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content. in Journal of Materials Processing Technology. 2002;125:275-280.
doi:10.1016/S0924-0136(02)00398-9 .
Popović, Miljana, Romhanji, Endre, "Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content" in Journal of Materials Processing Technology, 125 (2002):275-280,
https://doi.org/10.1016/S0924-0136(02)00398-9 . .

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