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The Study on Microstructural Evolution During Post-processing of Additively Manufactured Ti64

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TMS 2022 151st Annual Meeting & Exhibition Supplemental Proceedings

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

The effect of furnace heat treatments to 850 °C, on the evolution of microstructure in Ti–6Al–4V alloy produced via selective laser melting (SLM), was studied using optical microscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM). Columnar prior-β grains in the build direction with lamellar α-martensite laths contained within the prior-β grains were determined. α-martensite laths present in the as-built microstructure had thicknesses around 236 nm while the heat-treated microstructure showed an α-lath thickness values of around 1.8 μm. Based on XRD analysis, upon heat treatment the formation of β-phase was determined with associated peaks around 41° and 58°, corresponding to (110) and (200) planes, respectively.

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Acknowledgements

This publication has emanated from research conducted with the financial support of Science Foundation Ireland under Grant Number 16/RC/3872. For the purpose of Open Access, the author has applied a CC BY public copyright license to any Author Accepted Manuscript version arising from this submission.

Funding

This research was co-funded by the Science Foundation Ireland (SFI) and Stryker through I-Form, the SFI Research Centre for Advanced Manufacturing, and the Advanced Metallic Systems Centre for Doctorial Training (AMS–CDT).

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Authors and Affiliations

  1. School of Mechanical and Materials Engineering, University College Dublin, Dublin, Ireland

    Bryan Naab, Denis P. Dowling & Mert Celikin

Authors
  1. Bryan Naab
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  2. Denis P. Dowling
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  3. Mert Celikin
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Contributions

Bryan Naab: Investigation, Writing—Original Draft.

Mert Celikin: Writing—Review & Editing, Supervision.

Denis Dowling: Writing—Review & Editing, Supervision.

Corresponding author

Correspondence to Bryan Naab .

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    Ethics declarations

    The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: “This work was partially sponsored by Stryker, a medical technologies cooperation that uses additively manufactured Ti-6Al-4V in some of their products”.

    Originality statement

    I write on behalf of myself and all co-authors to confirm that the results reported in the manuscript are original and neither the entire work, nor any of its parts have been previously published. The authors confirm that the article has not been submitted to peer review, nor has been accepted for publishing in another journal. The author(s) confirms that the research in their work is original, and that all the data given in the article are real and authentic.

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    Naab, B., Dowling, D.P., Celikin, M. (2022). The Study on Microstructural Evolution During Post-processing of Additively Manufactured Ti64. In: TMS 2022 151st Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-92381-5_18

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