Experimental investigation of mechanical properties, corrosion and biocompatibility of Ti/RGO composite made by the combined method of spark plasma sintering and simple shear extrusion

Considering the high importance of pure titanium in the medical industry and the weak mechanical and physical properties of this metal, in this research, in order to develop mechanical properties and at the same time improve biological properties, pure titanium composite reinforced with regenerated graphene oxide nanoparticles using the method SPS was fabricated and subjected to severe plastic deformation at room temperature by a simple shear extrusion method. The effect of plasma sintering, severe plastic deformation process and placement in a body simulating solution on changes in the mechanical, corrosion and biological properties of this titanium grade was investigated. As a result of adding 0.1% by weight of RGO to pure titanium and then fine-granulating the produced composite structure, with a simple shear extrusion step, the amount of calcium (bone formation) in the body and after 28 days in the body simulating solution, more and it has a higher quality than the pure sintered sample. Also, the tensile strength of this sample after 28 days in the body simulating solution was higher than the pure sintered sample, so that the tensile strength of the pure sample and the sample with fine-grained RGO were recorded as 750 and 1089.4 MPa, respectively.