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Article

New Zn3Mg-xY Alloys: Characteristics, Microstructural Evolution and Corrosion Behavior

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Faculty of Materials Science and Engineering, “Gh. Asachi” Technical University from Iasi, 700050 Iasi, Romania
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Faculty of Mechanical Engineering, “Gh. Asachi” Technical University from Iasi, 700050 Iasi, Romania
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Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
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Authors to whom correspondence should be addressed.
Academic Editors: Guang-Ling Song, Mikhail Zheludkevich, Frank Czerwinski and Raman Singh
Materials 2021, 14(10), 2505; https://doi.org/10.3390/ma14102505
Received: 12 April 2021 / Revised: 4 May 2021 / Accepted: 11 May 2021 / Published: 12 May 2021
(This article belongs to the Special Issue Corrosion Resistance Enhancement of the Materials Surface)
Zinc biodegradable alloys attracted an increased interest in the last few years in the medical field among Mg and Fe-based materials. Knowing that the Mg element has a strengthening influence on Zn alloys, we analyze the effect of the third element, namely, Y with expected results in mechanical properties improvement. Ternary ZnMgY samples were obtained through induction melting in Argon atmosphere from high purity (Zn, Mg, and Y) materials and MgY (70/30 wt%) master alloys with different percentages of Y and keeping the same percentage of Mg (3 wt%). The corrosion resistance and microhardness of ZnMgY alloys were compared with those of pure Zn and ZnMg binary alloy. Materials were characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), linear and cyclic potentiometry, and immersion tests. All samples present generalized corrosion after immersion and electro-corrosion experiments in Dulbecco solution. The experimental results show an increase in microhardness and indentation Young Modulus following the addition of Y. The formation of YZn12 intermetallic phase elements with a more noble potential than pure Zinc is established. A correlation is obtained between the appearance of new Y phases and aggressive galvanic corrosion. View Full-Text
Keywords: biodegradable alloy; ZnMgY; corrosion; immersion test; 10xDPBS; SEM; XRD; EDS biodegradable alloy; ZnMgY; corrosion; immersion test; 10xDPBS; SEM; XRD; EDS
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MDPI and ACS Style

Panaghie, C.; Cimpoeșu, R.; Istrate, B.; Cimpoeșu, N.; Bernevig, M.-A.; Zegan, G.; Roman, A.-M.; Chelariu, R.; Sodor, A. New Zn3Mg-xY Alloys: Characteristics, Microstructural Evolution and Corrosion Behavior. Materials 2021, 14, 2505. https://doi.org/10.3390/ma14102505

AMA Style

Panaghie C, Cimpoeșu R, Istrate B, Cimpoeșu N, Bernevig M-A, Zegan G, Roman A-M, Chelariu R, Sodor A. New Zn3Mg-xY Alloys: Characteristics, Microstructural Evolution and Corrosion Behavior. Materials. 2021; 14(10):2505. https://doi.org/10.3390/ma14102505

Chicago/Turabian Style

Panaghie, Catalin, Ramona Cimpoeșu, Bogdan Istrate, Nicanor Cimpoeșu, Mihai-Adrian Bernevig, Georgeta Zegan, Ana-Maria Roman, Romeu Chelariu, and Alina Sodor. 2021. "New Zn3Mg-xY Alloys: Characteristics, Microstructural Evolution and Corrosion Behavior" Materials 14, no. 10: 2505. https://doi.org/10.3390/ma14102505

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