Study on Corrosion and Degradation Behavior of Mg-Ca Alloy in Simulated Body Fluid
The corrosion and degradation behavior of Mg-Ca binary alloy in simulated body fluid (SBF) were studied by immersion of pure Mg and Mg-Ca alloys with different Ca contents in SBF. The corrosion process was carried out by real-time measurement of sample weight, pH value of SBF and the microstructures of the immersed samples at different immersion time observed by electron microscopy. The result shows that Mg-Ca alloy with 0.7% Ca has better corrosion resistance than the one with 2.0% Ca. The product generated on the surface of Mg-0.7Ca during the immersion was identified by X-ray diffraction and energy spectrum analysis.
Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
J. C. Gao et al., "Study on Corrosion and Degradation Behavior of Mg-Ca Alloy in Simulated Body Fluid ", Materials Science Forum, Vols. 610-613, pp. 942-945, 2009