Abstract：Magnesium and its alloy as hard tissue implants have attracted more and more attention. This paper reports that heat treatment can improve the corrosion resistance of pure magnesium in simulated body fluid environment. Micro-electrochemical analysis system is used to test the corrosion rate of pure magnesium and orthogonal experiment is also used to optimize the parameters of heat treatment process. The results indicate that under condition of this experiment, the heat treatment with 773 K×14 h can effectively improve the corrosion behavior of pure magnesium in simulated body fluid, and the corrosion current density can reduce from 3.5 116×10-3 mA/cm2 to 9.8 593×10-5 mA/cm2.
2006, Vol. 24 
