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Peer-reviewedCC BY 4.0Nanomaterials

Recrystallization Behavior of MgAl Layered Double Hydroxide Films on Anodized Magnesium Alloys During Phytic Acid Loading

  • Jiahao Wu1,2
  • Wenjun Ci3
  • Yuanfang Deng4
  • Jiajia Yuan1,2
  • Junlan Li1,2
  • Xu Dai5
5 affiliations
  1. 1Basalt Fiber and Composite Key Laboratory of Sichuan Province, School of Modern Industry for Basalt Fiber Composite Materials, Sichuan University of Arts and Science, Dazhou 635000, China
  2. 2Dazhou Key Laboratory of Advanced Technology for Fiber Materials, School of Modern Industry for Basalt Fiber Composite Materials, Sichuan University of Arts and Science, Dazhou 635000, China
  3. 3School of Intelligent Manufacturing Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, China
  4. 4Dazhou Market Supervision and Administration Bureau, Dazhou 635000, China
  5. 5Electric Power Research Institute CSG EHV Power Transmission Company, Guangzhou 510663, China
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Abstract

MgAl layered double hydroxides (LDHs) films were prepared via an in-situ growth method on anodized AZ31 magnesium alloy. Subsequently, phytic acid (PA) was loaded as a corrosion inhibitor through an anion-exchange process. The structural evolution of the LDHs nanosheets during the loading process was systematically investigated. The structure, morphology, and composition of the films were characterized using field-emission scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and glow discharge optical emission spectroscopy. The corrosion behavior was evaluated using potentiodynamic polarization curves and electrochemical impedance spectroscopy. The results revealed that during the first four hours of ion exchange in the PA solution, the LDHs nanosheets underwent a fragmentation–recrystallization process. The incorporation of the corrosion inhibitor significantly enhanced both the stability of the LDHs nanosheets and the long-term corrosion protection of the substrate. Furthermore, a recrystallization mechanism for the LDHs nanosheets on the anodized AZ31 Mg alloy is proposed.

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Cite

BibTeXRIS
BibTeX
@article{wu2026recrystallization,
  title = {{Recrystallization Behavior of MgAl Layered Double Hydroxide Films on Anodized Magnesium Alloys During Phytic Acid Loading}},
  author = {Jiahao Wu and Wenjun Ci and Yuanfang Deng and Jiajia Yuan and Junlan Li and Xu Dai},
  journal = {Nanomaterials},
  year = {2026},
  month = oct,
  doi = {10.3390/nano16201292},
  url = {https://www.mdpi.com/2079-4991/16/20/1292},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Recrystallization Behavior of MgAl Layered Double Hydroxide Films on Anodized Magnesium Alloys During Phytic Acid Loading
AU  - Jiahao Wu
AU  - Wenjun Ci
AU  - Yuanfang Deng
AU  - Jiajia Yuan
AU  - Junlan Li
AU  - Xu Dai
PY  - 2026
DA  - 2026/10/01
JO  - Nanomaterials
DO  - 10.3390/nano16201292
UR  - https://www.mdpi.com/2079-4991/16/20/1292
AB  - MgAl layered double hydroxides (LDHs) films were prepared via an in-situ growth method on anodized AZ31 magnesium alloy. Subsequently, phytic acid (PA) was loaded as a corrosion inhibitor through an anion-exchange process. The structural evolution of the LDHs nanosheets during the loading process was systematically investigated. The structure, morphology, and composition of the films were characterized using field-emission scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and glow discharge optical emission spectroscopy. The corrosion behavior was evaluated using potentiodynamic polarization curves and electrochemical impedance spectroscopy. The results revealed that during the first four hours of ion exchange in the PA solution, the LDHs nanosheets underwent a fragmentation–recrystallization process. The incorporation of the corrosion inhibitor significantly enhanced both the stability of the LDHs nanosheets and the long-term corrosion protection of the substrate. Furthermore, a recrystallization mechanism for the LDHs nanosheets on the anodized AZ31 Mg alloy is proposed.
SN  - 2079-4991
ER  -