Advances in Laser Additive Manufacturing of Ti-Nb Alloys: From Nanostructured Powders to Bulk Objects; Nanomaterials; Vol. 11, iss. 5

Advances in Laser Additive Manufacturing of Ti-Nb Alloys: From Nanostructured Powders to Bulk Objects; Nanomaterials; Vol. 11, iss. 5

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Parent link:Nanomaterials
Vol. 11, iss. 5.— 2021.— [1159, 26 p.}
Nhiều tác giả của công ty: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения, Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Tác giả khác: Khimich M. A. Margarita Andreevna, Prosolov K. A. Konstantin Alexandrovich, Mishurova T. A. Tatjyana Aleksandrovna, Evsevleev S. G. Sergey Gennadjevich, Monforte X. Xavier, Teuschl A. Andreas, Slezak P. Paul, Ibragimov E. A. Egor Arturovich, Saprykin A. A. Aleksandr Aleksandrovich, Kovalevskaya Zh. G. Zhanna Gennadievna, Dmitriev A. I. Andrey Ivanovich, Bruno G. Giovanni, Sharkeev Yu. P. Yury Petrovich
Tóm tắt:Title screen
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.
Ngôn ngữ:Tiếng Anh
Được phát hành: 2021
Những chủ đề:
электронный ресурс
труды учёных ТПУ
additive manufacturing
biomaterials
Ti-Nb alloy
nanostructured powde
laser methods
powder methods
laser powder bed fusion
биоматериалы
лазерные методы
порошки
Truy cập trực tuyến:https://doi.org/10.3390/nano11051159
Định dạng: Điện tử Chương của sách
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666393

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