Magnesium has attracted a lot of attention as a new class of biodegradable material. The surface properties of magnesium in simulated body fluid (SBF) were investigated in the current research work. Cast magnesium samples with different surface characteristics were prepared which were then placed in SBF for 2, 4 and 8 days. This led to the formation of hydroxylapatite coating on their surfaces. The solution was changed at regular intervals to maintain a pH of 7.6. Other Mg samples were anodized at 40 V and 60 V to create a uniform layer of oxide on them and then their activity in SBF was compared with the casted samples of Mg. It was found that corrosion rate varies as the immersion time increases. Magnesium undergoes localized corrosion with pits and cracks forming on the surface of the samples. This was due to the aggressive corrosive nature of SBF.

中文翻译：

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在模拟体液中测试的镁的表面降解研究。

镁作为一种新型的可生物降解材料引起了广泛的关注。当前研究工作中研究了模拟体液（SBF）中镁的表面性质。制备了具有不同表面特性的铸镁样品，然后将其置于SBF中2、4和8天。这导致在其表面上形成羟基磷灰石涂层。定期更换溶液以保持pH值为7.6。其他Mg样品在40 V和60 V上进行阳极氧化，在其上形成均匀的氧化物层，然后将其在SBF中的活性与Mg铸造样品进行比较。发现腐蚀速率随浸没时间的增加而变化。镁经过局部腐蚀，在样品表面形成凹坑和裂纹。