Modern Problems of Materials Science

Impact of Gas Nitriding of 3D-Printed Ti6Al4V Alloy: Microstructural Evolution and Corrosion Characteristics

Khrystyna Shliakhetka1,2, Martin Balog1,2, Peter Krizik1, Petra Krajnakova1,2, Francisca M. Seabra1,2,3, Yujie Zhao1,3

1. Institute of Materials and Machine Mechanics of SAS, Slovakia
2. Centre for Advanced Materials Application of SAS, Slovakia
3. Slovak University of Technology

https://doi.org/10.15407/msse2025.01.127

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Keywords

Ti6Al4V, additive manufacturing, gas nitriding, corrosion resistance

Abstract

Gas nitriding of direct metal laser sintered (DMLS) Ti6Al4V alloy was pursue to improve implant performance. Nitrided surfaces showed a positive shift in corrosion potential, though higher current densities were linked to the roughness of 3D-printed samples. Overall, gas nitriding demonstrates potential to enhance corrosion protection and reduce the release of V and Al ions.

References

  1. Sheng , Wang A, Wang Z, Liu H, Wang J, Li C. Advanced Surface Modification for 3D-Printed Titanium Alloy Implant Interface Functionalization // Front Bioeng Biotechnol. – 2022. – 10. No. 850110. https://doi.org/10.3389/fbioe.2022.850110