Wear resistance and antibacterial properties of 3D-printed Ti6Al4V alloy after gas nitriding

被引：7
|
作者：
Matijosius, Tadas [1 ,2 ]
Pohrelyuk, Iryna [3 ]
Lavrys, Serhii [3 ]
Staisiunas, Laurynas
Selskiene, Ausra [2 ]
Sticinskait, Aiste [4 ]
Rageliene, Lina [4 ]
Smailys, Alfredas [5 ]
Andrius, Albinas
Padgurskas, Juozas [1 ]
机构：
[1] Vytautas Magnus Univ VMU, Fac Engn, Studentu 15 Akad, LT-53362 Kaunas, Lithuania
[2] State Res Inst Ctr Phys Sci & Technol, Dept Chem Engn & Technol, Sauletekio 3, LT-10257 Vilnius, Lithuania
[3] Natl Acad Sci Ukraine, Dept Mat Sci & Basics Surface Engn, Karpenko Physicomech Inst, Naukova Str 5, UA-79060 Lvov, Ukraine
[4] Vytautas Magnus Univ VMU, Fac Nat Sci, Univ 10 Akad, LT-53362 Kaunas, Lithuania
[5] Lithuanian Univ Hlth Sci, Dept Orthopaed & Traumatol, A Mickeviciaus Str 9, LT-44307 Kaunas, Lithuania
来源：
TRIBOLOGY INTERNATIONAL | 2024年 / 197卷
关键词：
3D-printing; Titanium nitriding; Wear; Antibacterial activity; CORROSION BEHAVIOR; TITANIUM-ALLOYS; TI ALLOY; PERFORMANCE; INFECTION; IMPLANTS;
D O I：
10.1016/j.triboint.2024.109839
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This research focused on tribological and antibacterial studies of 3D-printed Ti6Al4V alloys based on the selective laser melting method vs conventional technology after gas nitriding for biomedical applications. Gas nitriding reduced friction and wear in the following order: 3D-printed AM Ti6Al4V > wrought CM Ti6Al4V > CP-Ti. The best tribological performance was demonstrated on nitrided Ti6Al4V alloy using 3D printing. The antibacterial activity of the samples was estimated for the Gram-positive Staphylococcus aureus and the Gram-negative bacteria Escherichia coli. AM Ti6Al4V showed a positive antibacterial effect of nitriding against S. aureus bacteria by up to 30 %. Gas nitriding of 3D-printed Ti6Al4V alloys suggests an effective strategy to improve the antibacterial activity and mechanical resistance of biomedical implants.
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收藏
页数：13
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