beta-TCP particles additive synergistically improves corrosion resistance and biocompatibility of micro-arc oxide coated magnesium alloy

Optimizing micro-arc oxidation (MAO) coating by introducing functional particles has attracted increasing attention in fields about surface modification of magnesium alloys. However, the incorporation of particles usually destroys the integrity of the coating and resulting in the decreased corrosion resistance. In this work, beta-tricalcium phosphate (beta-TCP), a degradable calcium phosphate, was introduced in the MAO coating on magnesium surface. The results show that the introduction of beta-TCP simultaneously enhances the long-term corrosion resistance and biocompatibility of MAO coating. This work provides a strategy to synergistically improve the corrosion resistance and biocompatibility of magnesium alloy for orthopedic applications.

Automated summary

Incorporating degradable calcium phosphate beta-TCP in the MAO coating enhances the corrosion resistance and biocompatibility, providing a strategy to improve the properties of magnesium alloy for orthopedic applications.