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

M. V. Gerov; E. Yu. Vladislavskaya; V. F. Terent’ev; D. V. Prosvirnin; A. G. Kolmakov; O. S. Antonova

doi:10.1134/S0036029516100049

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

Authors: Gerov M.V.¹, Vladislavskaya E.Y.¹, Terent’ev V.F.², Prosvirnin D.V.², Kolmakov A.G.², Antonova O.S.²
Affiliations:
1. AO Corporation Moscow Heat Engineering Institute MIT
2. Baikov Institute of Metallurgy and Materials Science
Issue: Vol 2016, No 10 (2016)
Pages: 935-941
Section: Promising Materials and Technologies
URL: https://journals.rcsi.science/0036-0295/article/view/170925
DOI: https://doi.org/10.1134/S0036029516100049
ID: 170925

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Abstract

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.

Keywords

Ti–6Al–4V alloy, CL41TiELI powder, additive technologies, selective laser melting, fatigue strength, fracture mechanisms

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

Full Text

Abstract

Keywords

About the authors

M. V. Gerov

E. Yu. Vladislavskaya

V. F. Terent’ev

D. V. Prosvirnin

A. G. Kolmakov

O. S. Antonova

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