Investigation on Mechanical and Corrosion behavior of Mg based Mo/Zn Functionally Graded Composites for Biomedical Implants
Keywords:
Functionally graded material (FGM), Centrifugal casting, mechanical properties, microstructural behavior, and bio-implants.Abstract
A functionally graded material (FGM) with a triple-layered cylindrical shape, based on magnesium (80%), zinc (10%), and molybdenum (10%), was produced using a centrifugal process. The mechanical and microstructural properties of the developed FGMs were examined, with the microstructure being analyzed using optical microscopy (OM) and scanning electron microscopy (SEM). It was observed that the denser molybdenum particles had an impact on the mechanical and tribological characteristics of the magnesium-based FGMs. The study suggests that the Mg (80%) +Zn (10%) + Mo (10%) composite, subjected to three-layered testing, displayed promising mechanical and microstructural characteristics. An increase in micro hardness was noted in the direction of centrifugal force, with the average impact strength of the functionally graded magnesium composite measuring 58 joules, showing a 10% improvement compared to the middle region and a 19.26% improvement compared to the bottom region of FGM samples. The corrosion rates for the samples were determined to be 3.264E+1mm/yr for the bottom sample, 2.734E+1mm/yr for the middle region sample, and 2.6068E+1mm/yr for the top sample.
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