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6CCVD Research

Enhanced Mechanical Performance of SLM-Printed Inconel 718 Lattice Structures Through Heat Treatments

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2025-06-20
JournalMetals
AuthorsMarĂ­a J. Briones-Montemayor, Rigoberto GuzmĂĄn-Nogales, Parisa Majari, Jorge A. Estrada-DĂ­az, Alex Elı́as-ZĂșñiga
InstitutionsTecnolĂłgico de Monterrey
Citations2
AnalysisFull AI Review Included

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View Original Abstract

Selective laser melting (SLM) allows the production of complex lattice structures with tunable mechanical properties. This study proposes an integrated approach to enhance the mechanical properties of Inconel 718 (IN718) lightweight structures by applying distinct heat treatment protocols and tailoring key printing parameters. Four lattice geometries—body-centered cube (BCC), diamond, inverse woodpile (IWP), and gyroid—were selected for evaluation. Three heat treatment protocols were applied to assess their effect on mechanical behavior. Additionally, the influence of key SLM parameters such as laser power, scan speed, hatch spacing, and layer thickness on structural performance was investigated. By combining process tailoring and post-processing strategies, this work demonstrates a method to improve the mechanical response of complex IN718 lattices. The results highlight significant improvements in yield strength and energy absorption for high-performance applications in aerospace and automotive engineering.

Tech Support

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Original Source

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References

Section titled “References”
  1. 2012 - Evaluations of cellular lattice structures manufactured using selective laser melting [Crossref]
  2. 2018 - An investigation of the mechanical properties of metallic lattice structures fabricated using selective laser melting [Crossref]
  3. 2018 - Selective laser melting of lattice structures: A statistical approach to manufacturability and mechanical behavior [Crossref]
  4. 2024 - Influence of cooling rate during the heat treatment process on the precipitates and ductility behavior of inconel 718 superalloy fabricated by selective laser melting [Crossref]
  5. 2020 - Microstructure and elevated temperature mechanical properties of IN718 alloy fabricated by laser metal deposition [Crossref]
  6. 2021 - Precipitation-induced transition in the mechanical behavior of 3D printed Inconel 718 bcc lattices [Crossref]

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