Different Approaches for Manufacturing Ti-6Al-4V Alloy with Triply Periodic Minimal Surface Sheet-Based Structures by Electron Beam Melting; Membranes; Vol. 14, iss. 17

Bibliographische Detailangaben
Parent link:	Membranes Vol. 14, iss. 17.— 2021.— [4912, 21 p.]
Körperschaften:	Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий Научно-исследовательский центр "Физическое материаловедение и композитные материалы", Национальный исследовательский Томский политехнический университет Инженерная школа природных ресурсов Отделение нефтегазового дела
Weitere Verfasser:	Khrapov D. Dmitriy, Kozadayeva M. Maria, Manabaev K. K. Kairat Kamitovich, Panin A. V. Alexey Viktorovich, Sjostrom W. William, Koptyug A. V. Andrey Valentinovich, Mishurova T. A. Tatjyana Aleksandrovna, Evsevleev S., Meinel D. Dietmar, Bruno G. Giovanni, Cheneler D., Surmenev R. A. Roman Anatolievich, Surmeneva M. A. Maria Alexandrovna
Zusammenfassung:	Title screen Targeting biomedical applications, Triply Periodic Minimal Surface (TPMS) gyroid sheet-based structures were successfully manufactured for the first time by Electron Beam Melting in two different production Themes, i.e., inputting a zero (Wafer Theme) and a 200 [mu]m (Melt Theme) wall thickness. Initial assumption was that in both cases, EBM manufacturing should yield the structures with similar mechanical properties as in a Wafer-mode, as wall thickness is determined by the minimal beam spot size of ca 200 µm. Their surface morphology, geometry, and mechanical properties were investigated by means of electron microscopy (SEM), X-ray Computed Tomography (XCT), and uniaxial tests (both compression and tension). Application of different manufacturing Themes resulted in specimens with different wall thicknesses while quasi-elastic gradients for different Themes was found to be of 1.5 GPa, similar to the elastic modulus of human cortical bone tissue. The specific energy absorption at 50% strain was also similar for the two types of structures. Finite element simulations were also conducted to qualitatively analyze the deformation process and the stress distribution under mechanical load. Simulations demonstrated that in the elastic regime wall, regions oriented parallel to the load are primarily affected by deformation. We could conclude that gyroids manufactured in Wafer and Melt Themes are equally effective in mimicking mechanical properties of the bones.
Sprache:	Englisch
Veröffentlicht:	2021
Schlagworte:	электронный ресурс труды учёных ТПУ electron beam melting lightweight structures computed tomography finite element analysis электронно-лучевая плавка строительные леса легкие конструкции компьютерная томография метод конечных элементов сплавы Ti-6Al-4V
Online-Zugang:	http://earchive.tpu.ru/handle/11683/71112 https://doi.org/10.3390/ma14174912
Format:	Elektronisch Buchkapitel
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666369