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.

引用

页数：13

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