Determination of the X-Ray Elastic Constants of the Ti-6Al-4V Processed by Powder Bed-Laser Beam Melting

Determination of the X-Ray Elastic Constants of the Ti-6Al-4V Processed by Powder Bed-Laser Beam Melting

N. Dumontet, G. Geandier, F. Galliano, B. Viguier, B. Malard

Abstract. The determination of residual stresses (RS) through X-Ray Diffraction (XRD) necessitates the knowledge of the X-Ray Elastic Constants (XEC) S1 and 1/2 S2 for the specific phase in presence. In the case of Ti-6Al-4V additive manufacturing (AM) elaboration method such as Powder Bed Laser Beam Melting (PB-LBM) results in a microstructure fully constituted α’ martensitic phase. The properties of this α’ martensite are largely unknown. The purpose of the present paper is to determine the XEC of the α’ martensitic phase. This is performed using an original methodology involving 2D X-Ray detection. The results shows significant differences with XEC values available for the α phase from Titanium.

Keywords
X-Ray Elastic Constants, Laser Beam Melting, Martensitic Phase, Ti64

Published online 9/11/2018, 6 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: N. Dumontet, G. Geandier, F. Galliano, B. Viguier, B. Malard, ‘Determination of the X-Ray Elastic Constants of the Ti-6Al-4V Processed by Powder Bed-Laser Beam Melting’, Materials Research Proceedings, Vol. 6, pp 289-294, 2018

DOI: http://dx.doi.org/10.21741/9781945291890-46

The article was published as article 46 of the book Residual Stresses 2018

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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