| SAFARPOUR, Masoud, S. Alireza HOSSEINI, Fateme AHADANI-TARGHI, Petr VAŠINA and Mostafa ALISHAHI. A transition from petal-state to lotus-state in AZ91 magnesium surface by tailoring the microstructure. Surface and Coatings Technology. Lausanne: Elsevier Science SA, 2020, vol. 383, FEB 15 2020, p. 1-10. ISSN 0257-8972. Available from: https://dx.doi.org/10.1016/j.surfcoat.2019.125239. |
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@article{1677976,
author = {Safarpour, Masoud and Hosseini, S. Alireza and AhadaniandTarghi, Fateme and Vašina, Petr and Alishahi, Mostafa},
article_location = {Lausanne},
article_number = {FEB 15 2020},
doi = {http://dx.doi.org/10.1016/j.surfcoat.2019.125239},
keywords = {AZ91 Mg alloy; Superhydrophobicity; Petal-state; Lotus-state; beta-Precipitates; Chemical etching},
language = {eng},
issn = {0257-8972},
journal = {Surface and Coatings Technology},
title = {A transition from petal-state to lotus-state in AZ91 magnesium surface by tailoring the microstructure},
url = {https://doi.org/10.1016/j.surfcoat.2019.125239},
volume = {383},
year = {2020}
}
TY - JOUR
ID - 1677976
AU - Safarpour, Masoud - Hosseini, S. Alireza - Ahadani-Targhi, Fateme - Vašina, Petr - Alishahi, Mostafa
PY - 2020
TI - A transition from petal-state to lotus-state in AZ91 magnesium surface by tailoring the microstructure
JF - Surface and Coatings Technology
VL - 383
IS - FEB 15 2020
SP - 1-10
EP - 1-10
PB - Elsevier Science SA
SN - 02578972
KW - AZ91 Mg alloy
KW - Superhydrophobicity
KW - Petal-state
KW - Lotus-state
KW - beta-Precipitates
KW - Chemical etching
UR - https://doi.org/10.1016/j.surfcoat.2019.125239
L2 - https://doi.org/10.1016/j.surfcoat.2019.125239
N2 - This study explores the microstructural tuning of the AZ91 magnesium alloy subjecting to different heat-treatment procedures to produce the superhydrophobic surface with different adhesive properties. In this regard, a two-step chemical etching process was used to form hierarchical nano/microstructure, during which various phases were corroded with different rates. The surface morphology of samples was characterized using fieldemission scanning electron microscopy (FE-SEM) equipped with energy dispersive spectroscopy (EDS) and confocal laser microscopy (CLSM). In addition, the power spectral density (PSD) analysis was employed to evaluate the nano-scale and micro-scale components of the surfaces. The results revealed that the preferential dissolution of the matrix in favor of primary precipitates during etching treatment formed a hierarchical nano/microstructure on the surface of as-cast AZ91 sample and provided petal-type superhydrophobicity. Employing a combination of annealing and aging treatments resulted in a transition from petal to lotus-type superhydrophobicity by redistributing of the beta-precipitates in the alpha-Mg matrix. The mechanism of this transition was discussed in detail, and a direct correlation between the microstructure and the wettability behaviors of AZ91 Mg alloy was established.
ER -
SAFARPOUR, Masoud, S. Alireza HOSSEINI, Fateme AHADANI-TARGHI, Petr VAŠINA and Mostafa ALISHAHI. A transition from petal-state to lotus-state in AZ91 magnesium surface by tailoring the microstructure. \textit{Surface and Coatings Technology}. Lausanne: Elsevier Science SA, 2020, vol.~383, FEB 15 2020, p.~1-10. ISSN~0257-8972. Available from: https://dx.doi.org/10.1016/j.surfcoat.2019.125239.
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