【摘 要】
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3D-printing is an emerging technology that challenged wrought counterparts by one-step manufacturing for complicated biological devices.However,the material properties and surface features due to manu-facturing parameters play an important role on the cor
【机 构】
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Corrosion and Protection Centre,University of Science and Technology Beijing,Beijing 100083,China;Sh
论文部分内容阅读
3D-printing is an emerging technology that challenged wrought counterparts by one-step manufacturing for complicated biological devices.However,the material properties and surface features due to manu-facturing parameters play an important role on the corrosion behaviour and influence the toxicity of the material as an implant.In this paper,the improvement of pitting potential was observed by electrochem-ical experiments as the result of grain refinement of DMLS 316 L at 200 W laser power.The ICP results verified the supressed release of toxic cations after the formation of the passive film with enhanced char-acteristics.However,the pores from DMLS 316 L have the potential to develop into pits when polarised above pitting potential,promoting the risk of using 3D-printed 316 L as implant materials.
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