The Constant Extension Rate Tensile of AZ31B Magnesium Alloy with Si-contained Coating in Dynamic Simulated Body Fluid

Cytocompatibility and Hemolysis of AZ31B Magnesium Alloy with Si-containing Coating

“…The Sicontaining coating inhibited the degradation of the alloy and controlled the rapid increase of the pH value of the environment. The Si-containing coating is mainly composed of MgO and Mg 2 SiO 4 [22] . The coating reacted with the substances in the solution.…”

“…For fabrication of the Si-containing coating, the alloy samples were firstly etched in a mixed acid solution of oxalic acid and acetic acid at room temperature for surface activation, and subsequently immersed in an electrolyte solution, a mixing solution of NaOH, Na 2 SiO 3 and Na 4 P 2 O 7 , at 60 C for 120 h. The morphology of the cross section and the composition of the coating were reported in our previous work [22] . The composition of PBS (phosphate buffered saline) solution was as follows: NaCl 8 g/l, KCl 0.20 g/l, KH 2 PO 4 0.2 g/l, Na 2 HPO 4 $12H 2 O g/l.…”

“…Our previous study showed that a Sicontaining coating could enhance the corrosion resistance under stress in the simulated human environment [22] . The coating consisted of Mg 2 SiO 4 , MgO and SiO 2 .…”