Abstract

The corrosion resistance of Mg–Al–Zn magnesium alloy with coarse-grained and ultrafine-grained structures before and after the treatment of the surface of the alloy with pulsed nanosecond laser irradiation is studied. It is found that this treatment significantly increases the resistance of the alloy to its dissolution in a 0.9% NaCl saline only under the condition of preliminary formation of a uniform ultrafine-grained structure in the bulk of the sample. The observed effect can be considered as a promising method for the treatment of the surface of medical devices made of biodegradable magnesium alloys.

中文翻译：

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脉冲纳秒激光辐照对Mg-Al-Zn镁合金耐蚀性的影响

摘要

研究了脉冲纳秒激光辐照处理Mg-Al-Zn镁合金的粗晶和超细晶组织表面的耐蚀性。已经发现，只有在样品的大部分中初步形成均匀的超细晶粒结构的条件下，这种处理才显着提高合金在0.9％NaCl盐水中溶解的抵抗力。观察到的效果可以被认为是治疗由可生物降解的镁合金制成的医疗器械表面的有前途的方法。