Microstructural Behavior and Mechanical Properties of α + β Titanium Alloys Fabricated by Wire-Feed Electron Beam Additive Manufacturing; Metallurgical and Materials Transactions A; Vol. XX iss. X

Microstructural Behavior and Mechanical Properties of α + β Titanium Alloys Fabricated by Wire-Feed Electron Beam Additive Manufacturing; Metallurgical and Materials Transactions A; Vol. XX iss. X

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Parent link:Metallurgical and Materials Transactions A.— .— New York: Springer Nature
Vol. XX iss. X.— 2026.— P. xx
Další autoři: Panin A. V. Alexey Viktorovich, Kazachenok M. S. Marina Sergeevna, Perevalova O. B. Olga Borisovna, Lobova T. A. Tatjyana Anatoljevna, Martynov S. A. Sergey Andreevich
Shrnutí:Title screen
Wire-feed electron beam additive manufacturing (EBAM) is one of the most promising industrial technologies aimed at producing large-scale component blanks as well as restoring worn-out ones. This paper addresses the problem of coarse microstructure and the associated poor mechanical properties of EBAM α + β titanium alloys. The comparative investigation of the microstructures, partitioning behaviors and phase compositions of the as-built EBAM samples of commercially pure titanium, as well as Ti–6Al–4V, Ti–5Al–3Mo–1.5V, and Ti–3Al–5Mo–5V alloys (with similar chemical compositions), were performed using optical, scanning, and transmission electron microscopy, as well as energy-dispersive X-ray spectrometry and electron backscatter diffraction. It is substantiated that the main characteristic features of the EBAM titanium alloy samples are the presence of columnar primary β grains and fragmented laths/plates of the α/α′ phase, containing low-angle boundaries formed by edge dislocation walls with ordered tilt boundaries. Segregation of the alloying elements at low-angle boundaries inside the laths/plates of the α/α′ phase is observed. The effect of the alloying elements on the lath/plate thickness, volume fractions of residual β phase, crystal lattice parameters of the α/α′ phase, and residual stresses of the samples is discussed. It is shown that EBAM samples of commercially pure titanium are characterized by tensile residual stresses, while the residual stresses are compressive in Al-containing titanium alloy samples. The Vickers hardness, yield strength, elongation at break and fracture surface of the as-built EBAM titanium alloy samples are analyzed
Текстовый файл
AM_Agreement
Jazyk:angličtina
Vydáno: 2026
Témata:
электронный ресурс
труды учёных ТПУ
On-line přístup:https://doi.org/10.1007/s11661-026-08200-4
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=686066

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