Microstructure and corrosion behavior of laser surface-treated AZ31B Mg bio-implant material

作者: Tso-Chang Wu , Yee-Hsien Ho , Sameehan S. Joshi , Ravi S. Rajamure , Narendra B. Dahotre

DOI: 10.1007/S10103-017-2174-1

关键词:

摘要: Although magnesium and alloys are considered biocompatible biodegradable, they suffer from poor corrosion performance in the human body environment. In light of this, surface modification via rapid melting AZ31B Mg alloy using a continuous-wave Nd:YAG laser was conducted. Laser processing performed with energy ranging 1.06 to 3.18 J/mm2. The behavior simulated fluid surface-treated untreated samples evaluated electrochemical technique. effect treatment on phase microstructure evolution X-ray diffraction scanning electron microscopy. Microstructure examination revealed grain refinement as well formation uniform distribution Mg17Al12 along boundary for samples. Evolution such unique during indicated enhancement resistance compared alloy.

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