首页|Impact of Microstructural and Surface Modifications on theTi-45Nb Alloy's Response to Bio-Environment
Impact of Microstructural and Surface Modifications on theTi-45Nb Alloy's Response to Bio-Environment
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The Ti-45Nb(mass％)alloy's corrosive and biocompatible response in simulated physiological conditions was investigated before and after its additional high-pressure torsion(HPT)and laser irradiation processing.The grain size reduction from 2.76 pm to～200 nm and the appearance of laser-induced morphologically altered and highly oxidized surface led to the significant improvement of alloy corrosion resistance and cell-implant interaction.Moreover,an additional increase of the laser pulse energy from 5 to 15 mJ during the alloy irradiation in the air led to an increase in the surface oxygen content from 13.64 to 23.89％accompanied by an increase of excellent cell viability from 127.18 to 134.42％.As a result of the controlled alloy microstructural and surface modifications,the formation of protective bi-modal mixed Ti-and Nb-oxide external scale was enabled.The presence of this surface oxide scale enhanced the alloy's resistance to corrosion deterioration and simul-taneously boosted cell viability and proliferation.
Ivana Cvijovi?-Alagi?、Sla(d)ana Laketi?、·Milo? Mom?ilovi?、Jovan Ciganovi?、Jelena Bajat、Vesna Koji?
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Vinča Institute of Nuclear Sciences-National Institute of the Republic of Serbia,University of Belgrade,Mike Petrovića Alasa 12-14,11000 Belgrade,Serbia
Faculty of Technology and Metallurgy,University of Belgrade,Karnegijeva 4,11000 Belgrade,Serbia
Oncology Institute of Vojvodina,Faculty of Medicine,University of Novi Sad,Put Doktora Goldmana 4,Sremska Kamenica,21204 Sremska Kamenica,Serbia
Ministry of Science,Technological Development and Innovation of the Republic of SerbiaMinistry of Science,Technological Development and Innovation of the Republic of SerbiaPh.D.fellowship of Sla(d)ana Laketi?
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