Porous titanium and its alloys have been considered as promising implants owing to their low elastic modulus and capability to provide channels for bone growth.Currently,additive manufacturing(3D printing)techniques h...Porous titanium and its alloys have been considered as promising implants owing to their low elastic modulus and capability to provide channels for bone growth.Currently,additive manufacturing(3D printing)techniques have been successfully applied to produce porous titanium alloys owing to the advantages of controllable and precise fabrication.Considering the safety aspect,an understanding of corrosion in porous titanium alloys and the corresponding mechanisms is important for their long-term application in the human body.In this paper,the recent progress in improving the corrosion properties of porous titanium alloys fabricated via 3D printing techniques is reviewed.The effects of pore type,porosity,electrolyte,and modification of the material on the corrosion properties of porous titanium alloys are introduced and discussed.In addition,the limitations of traditional methods for measuring the corrosion performance of porous titanium alloys were analysed.Perspectives for evaluating and improving the corrosion performance of porous titanium alloys using new methods are provided.展开更多
基金the National Key Research and Development Program of China(Nos.2016YFC1100502,2017YFC1104903,and 2016YFC1102601)the National Natural Science Foundation of China(Nos.51631007,51501200,and 51871220)the Key Research Program of Frontier Sciences,CAS(No.QYZDJ-SSW-JSC031-02)。
文摘Porous titanium and its alloys have been considered as promising implants owing to their low elastic modulus and capability to provide channels for bone growth.Currently,additive manufacturing(3D printing)techniques have been successfully applied to produce porous titanium alloys owing to the advantages of controllable and precise fabrication.Considering the safety aspect,an understanding of corrosion in porous titanium alloys and the corresponding mechanisms is important for their long-term application in the human body.In this paper,the recent progress in improving the corrosion properties of porous titanium alloys fabricated via 3D printing techniques is reviewed.The effects of pore type,porosity,electrolyte,and modification of the material on the corrosion properties of porous titanium alloys are introduced and discussed.In addition,the limitations of traditional methods for measuring the corrosion performance of porous titanium alloys were analysed.Perspectives for evaluating and improving the corrosion performance of porous titanium alloys using new methods are provided.
