Corrosion properties of bioresorbable Mg-Zn-Zr-Ce alloy in coarse-grained and ultrafine-grained states

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY Russian Physics Journal Pub Date : 2025-02-12 DOI:10.1007/s11182-025-03369-4

N. A. Luginin, A. Yu. Eroshenko, K. A. Prosolov, A. D. Kashin, M. A Khimich, Yu. P. Sharkeev

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Abstract

The results of the study of corrosion properties of a bioresorbable Mg-Zn-Zr-Ce magnesium alloy in coarse-grained (CG) and ultrafine-grained (UFG) states are presented. A solution of 0.9 wt.% NaCl (NaCl) and phosphate-buffered saline (PBS) is used as the corrosion medium. An ambiguous corrosion behavior of the alloy depending on its structural state and type of corrosion medium is revealed. The most favorable corrosion performance is observed for the UFG state of the Mg-Zn-Zr-Ce alloy held in the PBS solution for a period of 14 days. The mass gain of UFG alloy samples in this solution is 0.2%, while the mass loss of CG alloy samples is 0.5%. In the NaCl solution, the mass loss of UFG and CG alloy samples is comparable, being 0.3%. A distinctive feature of the corrosion behavior of the Mg-Zn-Zr-Ce alloy in both CG and UFG states in NaCl is the uneven dissolution of the samples compared to their dissolution in PBS. It is shown that the corrosion layer of the UFG alloy after tests in both PBS and NaCl twice as thin as the corrosion layer of the CG alloy, which is attributed to the formation of a passivation layer on the surface of the UFG samples due to the defect structure.

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生物可吸收Mg-Zn-Zr-Ce合金粗晶态和超细晶态的腐蚀性能

介绍了生物可吸收Mg-Zn-Zr-Ce镁合金粗晶态和超细晶态腐蚀性能的研究结果。0.9 wt的解。采用% NaCl （NaCl）和磷酸盐缓冲盐水（PBS）作为腐蚀介质。结果表明，合金的腐蚀行为与合金的结构状态和腐蚀介质类型有关。Mg-Zn-Zr-Ce合金在PBS溶液中放置14天，UFG状态下的腐蚀性能最好。UFG合金样品在该溶液中的质量增益为0.2%，而CG合金样品的质量损失为0.5%。在NaCl溶液中，UFG和CG合金样品的质量损失相当，均为0.3%。Mg-Zn-Zr-Ce合金在CG和UFG状态下的腐蚀行为的一个显著特征是试样在NaCl中的溶解不均匀，而在PBS中的溶解不均匀。结果表明，在PBS和NaCl条件下，UFG合金的腐蚀层厚度是CG合金的2倍，这是由于UFG样品的缺陷结构在表面形成了钝化层。

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.