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arXiv · 1910.13265

Improvement in corrosion resistance and biocompatibility of AZ31 magnesium alloy by NH+2 ions

Xian Wei·Zhicheng Li·Pinduo Liu·Shijian Li·Xubiao Peng·Rongping Deng·Qing Zhao
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Abstract

Magnesium alloys have been considered to be favorable biodegradable metallic materials used in orthopedic and cardiovascular applications. We introduce NH+2 to the AZ31 Mg alloy surface by ion implantation at the energy of 50 KeV with doses ranging from 1e16 ions/cm2 to 1e17 ions/cm2 to improve its corrosion resistance and biocompatibility. Surface morphology, mechanical properties, corrosion behavior and biocompatibility are studied in the experiments. The analysis confirms that the modified surface with smoothness and hydrophobicity significantly improves the corrosion resistance and biocompatibility while maintaining the mechanical property of the alloy.

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Xian Wei, Zhicheng Li, Pinduo Liu, Shijian Li, Xubiao Peng, Rongping Deng, Qing Zhao. 2019-10-29. Improvement in corrosion resistance and biocompatibility of AZ31 magnesium alloy by NH+2 ions. https://arxiv.org/abs/1910.13265

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