Zhihu WANG, Jumei ZHANG, Lijing BAI, Guojun ZHANG. Mg(OH)2 Film on Micro-arc Oxidation Ceramic Coating of AZ31 Magnesium Alloy: Preparation and Corrosion Resistance [J]. Journal of Inorganic Materials, 2020, 35(6): 709

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- Journal of Inorganic Materials
- Vol. 35, Issue 6, 709 (2020)

1. XRD patterns of AZ31 substrate, MAO coating and HT/MAO composite coating

2. Surface morphologies of MAO coating and HT/MAO composite coating

3. EDS spectra and element contents of (a) MAO and (b) HT-2.0/MAO

4. Static contact angles of MAO coating and HT/MAO composite coating

5. Potentiodynamic polarization curves of AZ31 substrate, MAO, HT-0.2/MAO and HT-2.0/MAO

6. Nyquist and Bode plots of bare AZ31 and coated samples as well as equivalent circuit

7. R out, R inn and R total values of three coatings

8. XRD patterns of MAO and HT-0.2/MAO before and after immersion in 3.5wt% NaCl solution

9. Surface morphologies of MAO and HT-0.2 /MAO after immersion in 3.5wt% NaCl solution for 14 d
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Table 1. Fitting parameters derived from the potentiodynamic polarization curves

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