Advances in Laser Additive Manufacturing of Ti-Nb Alloys: From Nanostructured Powders to Bulk Objects
Margarita A. Khimich,
Konstantin A. Prosolov,
Tatiana Mishurova,
Sergei Evsevleev,
Xavier Monforte,
Andreas H. Teuschl,
Paul Slezak,
Egor A. Ibragimov,
Alexander A. Saprykin,
Zhanna G. Kovalevskaya,
Andrey I. Dmitriev,
Giovanni Bruno,
Yurii P. Sharkeev
Affiliations
Margarita A. Khimich
Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia
Konstantin A. Prosolov
Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia
Tatiana Mishurova
Department of Non-Destructive Testing, Division 8.5 Micro NDE, Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
Sergei Evsevleev
Department of Non-Destructive Testing, Division 8.5 Micro NDE, Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
Xavier Monforte
Department of Life Science Engineering, University of Applied Sciences Technikum Wien, Höchstädtpl. 6, 1200 Vienna, Austria
Andreas H. Teuschl
Department of Life Science Engineering, University of Applied Sciences Technikum Wien, Höchstädtpl. 6, 1200 Vienna, Austria
Paul Slezak
Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Donaueschingenstraße 13, 1200 Vienna, Austria
Egor A. Ibragimov
Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia
Alexander A. Saprykin
Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia
Zhanna G. Kovalevskaya
Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia
Andrey I. Dmitriev
Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia
Giovanni Bruno
Department of Non-Destructive Testing, Division 8.5 Micro NDE, Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
Yurii P. Sharkeev
Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia
The additive manufacturing of low elastic modulus alloys that have a certain level of porosity for biomedical needs is a growing area of research. Here, we show the results of manufacturing of porous and dense samples by a laser powder bed fusion (LPBF) of Ti-Nb alloy, using two distinctive fusion strategies. The nanostructured Ti-Nb alloy powders were produced by mechanical alloying and have a nanostructured state with nanosized grains up to 90 nm. The manufactured porous samples have pronounced open porosity and advanced roughness, contrary to dense samples with a relatively smooth surface profile. The structure of both types of samples after LPBF is formed by uniaxial grains having micro- and nanosized features. The inner structure of the porous samples is comprised of an open interconnected system of pores. The volume fraction of isolated porosity is 2 vol. % and the total porosity is 20 vol. %. Cell viability was assessed in vitro for 3 and 7 days using the MG63 cell line. With longer culture periods, cells showed an increased cell density over the entire surface of a porous Ti-Nb sample. Both types of samples are not cytotoxic and could be used for further in vivo studies.
