Fatigue strength of a Ti–6Al–4V alloy produced by selective laser melting


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Resumo

The fatigue properties and the fracture mechanisms of the Ti–6Al–4V alloy produced by selective laser melting (SLM) from a powder of an CL41TiELI titanium alloy have been studied. Cylindrical blanks were grown at angles of 90° and 45° to a platform. The best fatigue strength is observed in the samples the blanks of which were grown at an angle of 45°. It is found that the structure of the SLM material can contain portions with unmelted powder particles, which are the places of initiation of fatigue cracks.

Sobre autores

M. Gerov

AO Corporation Moscow Heat Engineering Institute MIT

Autor responsável pela correspondência
Email: zodom@mail.ru
Rússia, alleya Berezovaya 10, Moscow, 127273

E. Vladislavskaya

AO Corporation Moscow Heat Engineering Institute MIT

Email: fatig@mail.ru
Rússia, alleya Berezovaya 10, Moscow, 127273

V. Terent’ev

Baikov Institute of Metallurgy and Materials Science

Autor responsável pela correspondência
Email: fatig@mail.ru
Rússia, Leninskii pr. 49, Moscow, 119991

D. Prosvirnin

Baikov Institute of Metallurgy and Materials Science

Email: fatig@mail.ru
Rússia, Leninskii pr. 49, Moscow, 119991

A. Kolmakov

Baikov Institute of Metallurgy and Materials Science

Email: fatig@mail.ru
Rússia, Leninskii pr. 49, Moscow, 119991

O. Antonova

Baikov Institute of Metallurgy and Materials Science

Email: fatig@mail.ru
Rússia, Leninskii pr. 49, Moscow, 119991


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