Surface modification and corrosion of magnesium and its alloys

She has reported a new synthesis method of hydroxyapatite (HAp) on the surface of magnesium and its alloys in an aqueous solution. She demonstrated that the synthesized HAp coatings drastically improved the corrosion resistance of magnesium in the sea and physiological environments. Additionally, the nanostructure of HAp crystals on magnesium can be controlled. Since the poor corrosion resistance of magnesium alloys has been prohibited their practical application not only to reduce the weight of vehicles, aircrafts, electronics etc. but also to adjust the corrosion rate of bioabsorbable magnesium alloys in the human body, this environment friendly anticorrosion coating for magnesium alloys provides a solution for these issues. She has also reported that the electrochemical surface treatment, such as anodization, of magnesium is effective to control the corrosion rate of bioabsorbable magnesium alloys.

Corrosion of metallic biomaterials

She investigated the interaction between metallic biomaterials and cells adhering on them using electrochemical techniques. She demonstrated that the presence of cells retards the mass diffusion on the surface, which causes the decrease in the protectiveness of passive film of stainless steels and the decrease in pH on the surface. The findings can lead to develop new evaluation method of the corrosion resistance of metallic biomaterials in the environment which simulates the environment in the body.