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The effect of PEO parameters on the properties of biodegradable Mg alloys: a review
Surface Innovations ( IF 2.7 ) Pub Date : 2021-06-08 , DOI: 20.00057
Mehdi Esmaeili, Mehran Tadayonsaidi, Babak Ghorbanian

This paper comprehensively reviews recent research carried out in the field of preparation of bioactive coatings on magnesium (Mg)–aluminum (Al)–zinc (Zn) alloys by using the plasma electrolytic oxidation (PEO) method and investigation of factors affecting it. Magnesium–aluminum–zinc alloys (AZ grades) have been developed for use as biodegradation materials because the addition of aluminum and zinc as alloying elements can ameliorate their mechanical properties and increase corrosion resistance over those of pure magnesium alone without decrement in biocompatibility. Among the common methods for improvement of biodegradation, corrosion resistance and biocompatibility of magnesium alloys, surface modification techniques have been more effective. PEO is a relatively novel surface modification technique that provides excellent wear- and corrosion-resistant coatings on lightweight metals, in particular on magnesium and its alloys. The processing parameters of PEO, such as pulse frequencies, applied voltages, oxidation time, electrolyte concentrations and substrate chemical composition, are some of the major factors that determine the quality of the coatings in terms of corrosion resistance and bioactivity in body fluid solutions. Considering the fact that comprehensive review articles on the effect of PEO parameters on the properties of magnesium alloys have not been published in recent years, the aim of the present text is to provide an understanding of all aspects of these process parameters.

中文翻译:

PEO参数对可生物降解镁合金性能的影响:综述

本文全面回顾了近年来在镁(Mg)-铝(Al)-锌(Zn)合金上使用等离子体电解氧化(PEO)方法制备生物活性涂层领域的研究和影响因素的研究。镁-铝-锌合金(AZ 级)已被开发用作生物降解材料,因为添加铝和锌作为合金元素可以改善它们的机械性能,并在不降低生物相容性的情况下增加纯镁的耐腐蚀性。在提高镁合金生物降解性、耐腐蚀性和生物相容性的常用方法中,表面改性技术更为有效。PEO 是一种相对新颖的表面改性技术,可在轻质金属,特别是镁及其合金上提供优异的耐磨和耐腐蚀涂层。PEO 的加工参数,如脉冲频率、施加电压、氧化时间、电解质浓度和基材化学成分,是决定涂层质量的一些主要因素,包括体液溶液中的耐腐蚀性和生物活性。考虑到近年来没有发表关于 PEO 参数对镁合金性能影响的综合评论文章,本文的目的是提供对这些工艺参数的所有方面的理解。PEO 的加工参数,如脉冲频率、施加电压、氧化时间、电解质浓度和基材化学成分,是决定涂层质量的一些主要因素,包括体液溶液中的耐腐蚀性和生物活性。考虑到近年来没有发表关于 PEO 参数对镁合金性能影响的综合评论文章,本文的目的是提供对这些工艺参数的所有方面的理解。PEO 的加工参数,如脉冲频率、施加电压、氧化时间、电解质浓度和基材化学成分,是决定涂层质量的一些主要因素,包括体液溶液中的耐腐蚀性和生物活性。考虑到近年来没有发表关于 PEO 参数对镁合金性能影响的综合评论文章,本文的目的是提供对这些工艺参数的所有方面的理解。是决定涂层质量的一些主要因素,包括体液溶液中的耐腐蚀性和生物活性。考虑到近年来没有发表关于 PEO 参数对镁合金性能影响的综合评论文章,本文的目的是提供对这些工艺参数的所有方面的理解。是决定涂层质量的一些主要因素,包括体液溶液中的耐腐蚀性和生物活性。考虑到近年来没有发表关于 PEO 参数对镁合金性能影响的综合评论文章,本文的目的是提供对这些工艺参数的所有方面的理解。
更新日期:2021-06-08
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