Inconel 625 lattice structures manufactured by selective laser melting (SLM): Mechanical properties, deformation and failure modes

Leary, M, Mazur, M, Williams, H, Yang, E, Alghamdi, A, Lozanovski, B, Zhang, X, Shidid, D, Farahbod-Sternahl, L, Witt, G, Kelbassa, I, Choong, P, Ma, Q and Brandt, M 2018, 'Inconel 625 lattice structures manufactured by selective laser melting (SLM): Mechanical properties, deformation and failure modes', Materials and Design, vol. 157, pp. 179-199.


Document type: Journal Article
Collection: Journal Articles

Title Inconel 625 lattice structures manufactured by selective laser melting (SLM): Mechanical properties, deformation and failure modes
Author(s) Leary, M
Mazur, M
Williams, H
Yang, E
Alghamdi, A
Lozanovski, B
Zhang, X
Shidid, D
Farahbod-Sternahl, L
Witt, G
Kelbassa, I
Choong, P
Ma, Q
Brandt, M
Year 2018
Journal name Materials and Design
Volume number 157
Start page 179
End page 199
Total pages 21
Publisher Elsevier
Abstract Additive Manufacture (AM) enables the fabrication of highly complex lattice structures with exceptional engineering properties. Inconel is a technically useful material in that it provides high resistance to oxidisation, creep and loss of mechanical properties at elevated temperatures. The combination of Inconel material properties and the geometric freedom of AM provides a unique opportunity for the fabrication of engineered structures with exceptional strength and stiffness at elevated temperatures, as for example is required for high temperature turbomachinery. Despite the associated technical opportunities, there exists no design data on the mechanical response, deformation characteristics and failure modes of AM Inconel 625 lattice structures. This research provides a comprehensive reference for the mechanical response of Inconel 625 lattice structures fabricated by Selective Laser Melting (SLM). Furthermore, the high ductility of Inconel 625 lattice enables novel insight into the structural mechanics of AM lattice, and the associated deformation photography provides a reference for the validation and verification of numerical models of AM lattice behaviour.
Subject Manufacturing Engineering not elsewhere classified
Keyword(s) Additive manufacture
Design for additive manufacture (DFAM)
Inconel 625
Lattice structures
Selective laser melting (SLM)
DOI - identifier 10.1016/j.matdes.2018.06.010
Copyright notice © 2018 Elsevier Ltd. All rights reserved.
ISSN 0264-1275
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