Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing

V. Beura; D. Zhang; N. Overman; J. Darsell; D. R. Herling; K. Solanki; V. V. Joshi

doi:10.1016/j.corsci.2021.110074

Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing

V. Beura, D. Zhang, N. Overman, J. Darsell, D. R. Herling, K. Solanki, V. V. Joshi

Engineering, Ira A. Fulton Schools of (IAFSE)

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

In this work, a novel solid-phase processing; namely, shear assisted processing and extrusion (ShAPE) was used to modify the microstructure of AZ31 magnesium alloy, which simultaneously improved corrosion resistance along with mechanical properties compared to wrought AZ31 alloys. A noble breakdown potential, higher polarization resistance, and a smaller film thickness after immersion was observed after ShAPE processing. The improved corrosion resistance of ShAPE processed alloy was attributed to grain refinement, homogenized distribution of second phases, and low residual strain in the matrix. Similarly, a tilted basal texture along the ShAPE processed direction contributed towards enhanced ductility and eliminated the tension-compression asymmetry.

Original language	English (US)
Article number	110074
Journal	Corrosion Science
Volume	197
DOIs	https://doi.org/10.1016/j.corsci.2021.110074
State	Published - Apr 1 2022

Keywords

Ductility
Electrochemical impedance spectroscopy
Magnesium alloys
Second phase particles
X-ray photoelectron spectroscopy

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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10.1016/j.corsci.2021.110074

Cite this

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title = "Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing",

abstract = "In this work, a novel solid-phase processing; namely, shear assisted processing and extrusion (ShAPE) was used to modify the microstructure of AZ31 magnesium alloy, which simultaneously improved corrosion resistance along with mechanical properties compared to wrought AZ31 alloys. A noble breakdown potential, higher polarization resistance, and a smaller film thickness after immersion was observed after ShAPE processing. The improved corrosion resistance of ShAPE processed alloy was attributed to grain refinement, homogenized distribution of second phases, and low residual strain in the matrix. Similarly, a tilted basal texture along the ShAPE processed direction contributed towards enhanced ductility and eliminated the tension-compression asymmetry.",

keywords = "Ductility, Electrochemical impedance spectroscopy, Magnesium alloys, Second phase particles, X-ray photoelectron spectroscopy",

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T1 - Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing

AU - Beura, V.

AU - Zhang, D.

AU - Overman, N.

AU - Darsell, J.

AU - Herling, D. R.

AU - Solanki, K.

AU - Joshi, V. V.

PY - 2022/4/1

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N2 - In this work, a novel solid-phase processing; namely, shear assisted processing and extrusion (ShAPE) was used to modify the microstructure of AZ31 magnesium alloy, which simultaneously improved corrosion resistance along with mechanical properties compared to wrought AZ31 alloys. A noble breakdown potential, higher polarization resistance, and a smaller film thickness after immersion was observed after ShAPE processing. The improved corrosion resistance of ShAPE processed alloy was attributed to grain refinement, homogenized distribution of second phases, and low residual strain in the matrix. Similarly, a tilted basal texture along the ShAPE processed direction contributed towards enhanced ductility and eliminated the tension-compression asymmetry.

AB - In this work, a novel solid-phase processing; namely, shear assisted processing and extrusion (ShAPE) was used to modify the microstructure of AZ31 magnesium alloy, which simultaneously improved corrosion resistance along with mechanical properties compared to wrought AZ31 alloys. A noble breakdown potential, higher polarization resistance, and a smaller film thickness after immersion was observed after ShAPE processing. The improved corrosion resistance of ShAPE processed alloy was attributed to grain refinement, homogenized distribution of second phases, and low residual strain in the matrix. Similarly, a tilted basal texture along the ShAPE processed direction contributed towards enhanced ductility and eliminated the tension-compression asymmetry.

KW - Ductility

KW - Electrochemical impedance spectroscopy

KW - Magnesium alloys

KW - Second phase particles

KW - X-ray photoelectron spectroscopy

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Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing

Abstract

Keywords

ASJC Scopus subject areas

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