Improved Corrosion Behavior of Biodegradable Mg-4Zn-1Mn Alloy Modified by Sr/F co-doped CaP Micro-arc Oxidation Coatings

Weirong LI; Yanfang LI; Qian LI; Xuan XIONG; Fangfei LIU; Ronghui LI; Heng LI; Dong PANG; Jia LU; Xuan ZHANG

doi:10.33142/rams.v5i2.12704

Improved Corrosion Behavior of Biodegradable Mg-4Zn-1Mn Alloy Modified by Sr/F co-doped CaP Micro-arc Oxidation Coatings

LIWeirong (Dongguan Eontec Co., Ltd.), LIYanfang (Dongguan Eontec Co., Ltd.), LIQian (Dongguan Eontec Co., Ltd.), XIONGXuan (Dongguan Eontec Co., Ltd.), LIUFangfei (Dongguan Eontec Co., Ltd.), LIRonghui (Dongguan Eontec Co., Ltd.), LIHeng (Dongguan Eontec Co., Ltd.), PANGDong (Dongguan Eontec Co., Ltd.), LUJia (School of Mechanical Engineering, Tiangong University), ZHANGXuan (School of Mechanical Engineering, Tiangong University)

Abstract

The Sr/F co-doped CaP (Sr/F-CaP) coatings were prepared by micro-arc oxidation (MAO) under different voltages to modify the microstructure and corrosion behavior of Mg-4Zn-1Mn alloy. The surface and interface characteristics investigated using scanning electron microscopy (SEM) and energy dispersive X-ray spectrometer (EDS) showed that the MAO coatings displayed uneven crater-like holes and tiny cracks under lower voltage, while they exhibited relatively homogeneous crater-like holes without cracks under higher voltage. The thickness of MAO coatings increased with increasing voltage. The corrosion behavior of Mg-4Zn-1Mn alloy was improved by the MAO coatings. The MAO coatings prepared under 450 V and 500 V voltages possessed the best corrosion resistance with regard to the electrochemical corrosion tests and immersion corrosion tests, respectively. The MAO coatings fabricated under 450-500 V could provide a better corrosion protection effect for the substrate.

Keywords

Biodegradable Mg alloys; Mg-4Zn-1Mn alloy; Micro-arc oxidation; Sr/F co-doped CaP coatings

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References

Tsakiris V, Tardei C, Clicinschi F M. Biodegradable Mg alloys for orthopedic implants–A review[J]. Journal of Magnesium and Alloys, 2021, 9(6):1884-1905.

Espiritu J, Meier M, Seitz J M. The current performance of biodegradable magnesium-based implants in magnetic resonance imaging: A review[J]. Bioactive Materials, 2021, 6(12):4360-4367.

Song M S, Zeng R C, Ding Y F, et al.. Recent advances in biodegradation controls over Mg alloys for bone fracture management: A review[J]. Journal of materials science & technology, 2019, 35(4): 535-544.

Liang J, Lei Z, Chen Y, et al.. Microstructure evolution of laser powder bed fusion ZK60 Mg alloy after different heat treatment[J]. Journal of Alloys and Compounds, 2022, 898: 163046.

Ling L, Cai S, Li Q, et al.. Recent advances in hydrothermal modification of calcium phosphorus coating on magnesium alloy[J]. Journal of Magnesium and Alloys, 2022,10(1):62-80.

Amukarimi S, Mozafari M. Biodegradable magnesium‐based biomaterials: An overview of challenges and opportunities[J]. MedComm, 2021,2(2):123-144.

Zerankeshi M M, Alizadeh R, Gerashi E, et al.. Effects of heat treatment on the corrosion behavior and mechanical properties of biodegradable Mg alloys[J]. Journal of Magnesium and Alloys, 2022(21):78-82.

Wei X, Liu P, Ma S, et al.. Improvement on corrosion resistance and biocompability of ZK60 magnesium alloy by carboxyl ion implantation[J]. Corrosion Science, 2020(173):108729.

Yiu P, You J D, Wang S T, et al.. Tunable hydrophilicity in a surface nano-textured stainless steel thin film deposited by DC magnetron sputtering[J]. Applied Surface Science, 2021(555):149705.

Jothi V, Adesina A Y, Kumar A M, et al.. Enhancing the biodegradability and surface protective performance of AZ31 Mg alloy using polypyrrole/gelatin composite coatings with anodized Mg surface[J]. Surface and Coatings Technology, 2020(381):125139.

Rahman M, Li Y, Wen C. HA coating on Mg alloys for biomedical applications: A review[J]. Journal of Magnesium and Alloys, 2020,8(3):929-943.

Li W, Su Y, Ma L, et al.. Sol-gel coating loaded with inhibitor on ZE21B Mg alloy for improving corrosion resistance and endothelialization aiming at potential cardiovascular application[J]. Colloids and Surfaces B: Biointerfaces, 2021(207): 111993.

Wang T, Xu Y, Zhang Q, et al.. Enhancing the antibacterial properties of magnesium alloys with copper-doped anhydrous calcium phosphate nanoparticles embedded into the polycaprolactone coating for medical implants[J]. ACS Applied Nano Materials, 2022,5(12):18965-18976.

Zhang K, Yu S. Preparation of wear and corrosion resistant micro-arc oxidation coating on 7N01 aluminum alloy[J]. Surface and Coatings Technology, 2020(388): 125453.

Sankara Narayanan T S N , Il Song Park, Min Ho Lee. Strategies to improve the corrosion resistance of microarc oxidation (MAO) coated magnesium alloys for degradable implants: Prospects and challenges[J]. Progress in Materials Science, 2014, 60: 1.

Xi K, Wu H, Zhou C, et al.. Improved corrosion and wear resistance of micro-arc oxidation coatings on the 2024 aluminum alloy by incorporation of quasi-two-dimensional sericite microplates[J]. Applied Surface Science, 2022(585):152693.

Lin Z, Wang T, Yu X, et al.. Functionalization treatment of micro-arc oxidation coatings on magnesium alloys: A review[J]. Journal of Alloys and Compounds, 2021(879):160453.

He R Y, Wang B Y, Xiang J H, et al.. Effect of copper additive on microstructure and anti-corrosion performance of black MAO films grown on AZ91 alloy and coloration mechanism[J]. Journal of Alloys and Compounds, 2021(889):161501.

Ly X N, Yang S. Influence of current mode on microstructure and corrosion behavior of micro-arc oxidation (MAO) biodegradable Mg-Zn-Ca alloy in Hank's solution[J]. Surface and Coatings Technology, 2019(358):331-339.

Lin Xiao, Tan Lili, Zhang Qiang, et al.. The in vitro degradation process and biocompatibility of a ZK60 magnesium alloy with a forsterite-containing micro-arc oxidation coating[J]. Acta Biomaterialia, 2019,9(10):8631–8642.

Zhu H, Li X, Guan X, et al.. Effect of molybdate conversion coating of magnesium alloy reinforced by micro-arc oxidation[J]. Metals and Materials International, 2021(27):3975-3982.

Chaharmahali R, Fattah-alhosseini A, Babaei K. Surface characterization and corrosion behavior of calcium phosphate (Ca-P) base composite layer on Mg and its alloys using plasma electrolytic oxidation (PEO): A review[J]. Journal of Magnesium and Alloys, 2021,9(1):21-40.

Liu P, Wang J M, Yu X T, et al.. Corrosion resistance of bioinspired DNA-induced Ca–P coating on biodegradable magnesium alloy[J]. Journal of Magnesium and Alloys, 2019, 7(1): 144-154.

Zhang Z Y, Huang T Y, Zhai D J, et al.. Study on strontium doped bioactive coatings on titanium alloys surfaces by micro-arc oxidation[J]. Surface and Coatings Technology, 2022(451):129045.

Yu W, Sun R, Guo Z, et al.. Novel fluoridated hydroxyapatite/MAO composite coating on AZ31B magnesium alloy for biomedical application[J]. Applied Surface Science, 2019(464):708-715.

Zheng Y, Zang L, Bi Y, et al.. Corrosion behavior of Fe/Zr composite coating on ZK60 Mg alloy by ion implantation and deposition[J]. Coatings, 2018,8(8):261.

Küçükosman R, Şüküroğlu E E, Totik Y, et al.. Investigation of wear behavior of graphite additive composite coatings deposited by micro arc oxidation-hydrothermal treatment on AZ91 Mg alloy[J]. Surfaces and Interfaces, 2021(22): 100894.

Yao J, Wang Y, Wu G, et al.. Growth characteristics and properties of micro-arc oxidation coating on SLM-produced TC4 alloy for biomedical applications[J]. Applied Surface Science, 2019(479):727-737.

Jiang S, Zhang Z, Wang D, et al.. ZIF-8-based micro-arc oxidation composite coatings enhanced the corrosion resistance and superhydrophobicity of a Mg alloy[J]. Journal of Magnesium and Alloys, 2021(233):480-485.

Xue K, Liang L X, Cheng S C, et al.. Corrosion resistance, antibacterial activity and drug release of ciprofloxacin-loaded micro-arc oxidation/silane coating on magnesium alloy AZ31[J]. Progress in Organic Coatings, 2021(158):106357.

Kaseem M, Hussain T, Rehman Z U, et al.. Stabilization of AZ31 Mg alloy in sea water via dual incorporation of MgO and WO3 during micro-arc oxidation[J]. Journal of Alloys and Compounds, 2021(853):157036.

H Wu Z, Shi X Zhang, A M Qasim, et al.. Achieving an acid resistant surface on magnesium alloy via bio-inspired design[J]. Applied Surface Science, 2019 (4789):150-161.

Shang W, Wu F, Jiang S, et al.. Effect of hydrophobicity on the corrosion resistance of microarc oxidation/self-assembly/nickel composite coatings on magnesium alloys[J]. Journal of Molecular Liquids, 2021(330):115606.

Xu W, Liu Z, Li B, et al.. Effects of magnetic field force in preparation of plasma electrolytic oxidation coatings: A novel method to improve the corrosion resistance of magnesium[J]. Journal of Alloys and Compounds, 2022(906):162642.