Effect of CeO2 and Y2O3 on microstructure, bioactivity and degradability of laser cladding CaO-SiO2 coating on titanium alloy

- The cross-section microstructure of cladding layer from top to bottom is different.
- CeO2 and Y2O3 can refine the microstructure of the cladding surface layer.
- The grain refinement effect is related to the kinds of additives and their content.
- The coating has the ability to form calcium phosphate in simulated body fluid.
- The addition of CeO2 or Y2O3 improves the degradability of laser cladding samples.