Beam Current Effect on Microstructure and Properties of Electron-Beam-Melted Ti-6Al-4V Alloy

Beam Current Effect on Microstructure and Properties of Electron-Beam-Melted Ti-6Al-4V Alloy

Bibliographic Details
Parent link:	Journal of Materials Engineering and Performance Vol. 28, iss. 10.— 2019.— [P. 6165-6173]
Corporate Author:	Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
Other Authors:	Pushilina N. S. Natalia Sergeevna, Klimenov V. A. Vasily Aleksandrovich, Cherepanov R. O. Roman Olegovich, Kashkarov E. B. Egor Borisovich, Fedorov V. V. Vasilii Viktorovich, Syrtanov M. S. Maksim Sergeevich, Lider A. M. Andrey Markovich, Laptev R. S. Roman Sergeevich
Summary:	Title screen In this study, a noncommercial 3D printing machine was used to fabricate Ti-6Al-4V alloy by electron-beam melting (EBM). The influence of beam current on the microstructure, phase composition and mechanical properties of electron-beam-melted Ti-6Al-4V alloy was investigated. Numerical simulation is implemented to evaluate thermal fields during electron-beam melting of Ti-6Al-4V powder. The decrease in beam current from 3.5 to 2.5 mA leads to refinement of microstructure: The average width of ? plates decreases from 10 down to 6 ?m. The formation of finer microstructure is attributed to higher cooling rate at lower beam current confirmed by simulation. The phase composition of EBM Ti-6Al-4V indirectly depends on the beam current. High content of ? phase (7%) was achieved at the beam current of 3 mA. The produced Ti-6Al-4V samples are characterized by high microhardness (470-520 HV). Режим доступа: по договору с организацией-держателем ресурса
Published:	2019
Subjects:	электронный ресурс труды учёных ТПУ additive manufacturing electron-beam melting microhardness microstructure simulation models Ti-6Al-4V titanium alloy производство добавки электронно-лучевая плавка микротвердость микроструктура имитационные модели титановые сплавы
Online Access:	https://doi.org/10.1007/s11665-019-04344-0
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662582

Internet

https://doi.org/10.1007/s11665-019-04344-0