The influence of copper additions and aging on the microstructure and metastable pitting of Al-Mg-Si alloys

S.K. Kairy; P.A. Rometsch; C.H.J. Davies; N. Birbilis

doi:10.5006/1840

The influence of copper additions and aging on the microstructure and metastable pitting of Al-Mg-Si alloys

S.K. Kairy, P.A. Rometsch, C.H.J. Davies, N. Birbilis

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Abstract

The metastable pitting of 6xxx series aluminum alloys (Al-Mg-Si-(Cu)) as a function of Cu content and aging was studied. Potentiodynamic polarization and potentiostatic transients were performed to determine the electrochemical response of a family of 6xxx alloys based on a similar Si:Mg ratio. Additionally, the evolution of microstructure in all samples studied was also determined using transmission electron microscopy. The refinement in thickness of precipitates with the addition of Cu was shown to decrease the propensity for metastable pitting.

Original language	English
Pages (from-to)	1304 - 1307
Number of pages	4
Journal	Corrosion
Volume	71
Issue number	11
DOIs	https://doi.org/10.5006/1840
Publication status	Published - 2015

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10.5006/1840

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abstract = "The metastable pitting of 6xxx series aluminum alloys (Al-Mg-Si-(Cu)) as a function of Cu content and aging was studied. Potentiodynamic polarization and potentiostatic transients were performed to determine the electrochemical response of a family of 6xxx alloys based on a similar Si:Mg ratio. Additionally, the evolution of microstructure in all samples studied was also determined using transmission electron microscopy. The refinement in thickness of precipitates with the addition of Cu was shown to decrease the propensity for metastable pitting.",

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T1 - The influence of copper additions and aging on the microstructure and metastable pitting of Al-Mg-Si alloys

AU - Kairy, S.K.

AU - Rometsch, P.A.

AU - Davies, C.H.J.

AU - Birbilis, N.

PY - 2015

Y1 - 2015

N2 - The metastable pitting of 6xxx series aluminum alloys (Al-Mg-Si-(Cu)) as a function of Cu content and aging was studied. Potentiodynamic polarization and potentiostatic transients were performed to determine the electrochemical response of a family of 6xxx alloys based on a similar Si:Mg ratio. Additionally, the evolution of microstructure in all samples studied was also determined using transmission electron microscopy. The refinement in thickness of precipitates with the addition of Cu was shown to decrease the propensity for metastable pitting.

AB - The metastable pitting of 6xxx series aluminum alloys (Al-Mg-Si-(Cu)) as a function of Cu content and aging was studied. Potentiodynamic polarization and potentiostatic transients were performed to determine the electrochemical response of a family of 6xxx alloys based on a similar Si:Mg ratio. Additionally, the evolution of microstructure in all samples studied was also determined using transmission electron microscopy. The refinement in thickness of precipitates with the addition of Cu was shown to decrease the propensity for metastable pitting.

UR - http://www.corrosionjournal.org/doi/abs/10.5006/1840? journalCode=corr

U2 - 10.5006/1840

DO - 10.5006/1840

M3 - Article

SN - 0010-9312

VL - 71

SP - 1304

EP - 1307

JO - Corrosion

JF - Corrosion

IS - 11

ER -

The influence of copper additions and aging on the microstructure and metastable pitting of Al-Mg-Si alloys

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The influence of copper additions and aging on the microstructure and metastable pitting of Al-Mg-Si alloys

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