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Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials

Robert Lancaster Orcid Logo, N.C. Barnard, B. Haigh, Elizabeth Sackett Orcid Logo, P.E. May Orcid Logo, D. Britton Orcid Logo, Spencer Jeffs Orcid Logo

Journal of Materials Research and Technology, Volume: 26, Pages: 9328 - 9345

Swansea University Authors: Robert Lancaster Orcid Logo, Elizabeth Sackett Orcid Logo, Spencer Jeffs Orcid Logo

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DOI (Published version): 10.1016/j.jmrt.2023.09.224

Abstract

With the continuous drive of the aerospace industry to implement additive manufactured (AM) components into the next generation of aero-engines, to benefit from the near net shape and weight saving potential that the technology has to offer, the requirement to understand their mechanical performance...

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Published in: Journal of Materials Research and Technology
ISSN: 2238-7854
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa64595
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This is further complicated by the highly localised and transient micro/macro structures that AM produced parts typically possess, raising a question mark over the suitability of more traditional mechanical test approaches where the bulk properties are heavily influenced by the presence of a single defect. As such, alternative experimental approaches, capable of establishing the properties of smaller more intricate structures and geometrically representative microstructures and cross sections, needs to be considered for process parameter down-selection. This paper will explore the suitability of several alternative mechanical test methodologies in characterising the mechanical behaviour of a nickel based superalloy, Inconel 718 (IN718), produced by laser powder bed fusion (LPBF), and establish which results correlate most favourably to those generated through more conventional means. For the first time, results will be presented from several mechanical test methodologies including small punch, shear punch, hardness, nano-indentation and profilometry based indentation plastometry experiments; a set of mechanical test approaches that have yet to be directly compared and discussed in a single study on an additively manufactured material. 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spelling v2 64595 2023-09-22 Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false 55d1695a53656de6b0bdfa4c08d8bcd4 0000-0002-5975-6967 Elizabeth Sackett Elizabeth Sackett true false 6ff76d567df079d8bf299990849c3d8f 0000-0002-2819-9651 Spencer Jeffs Spencer Jeffs true false 2023-09-22 MTLS With the continuous drive of the aerospace industry to implement additive manufactured (AM) components into the next generation of aero-engines, to benefit from the near net shape and weight saving potential that the technology has to offer, the requirement to understand their mechanical performance is also rising in parallel. This is further complicated by the highly localised and transient micro/macro structures that AM produced parts typically possess, raising a question mark over the suitability of more traditional mechanical test approaches where the bulk properties are heavily influenced by the presence of a single defect. As such, alternative experimental approaches, capable of establishing the properties of smaller more intricate structures and geometrically representative microstructures and cross sections, needs to be considered for process parameter down-selection. This paper will explore the suitability of several alternative mechanical test methodologies in characterising the mechanical behaviour of a nickel based superalloy, Inconel 718 (IN718), produced by laser powder bed fusion (LPBF), and establish which results correlate most favourably to those generated through more conventional means. For the first time, results will be presented from several mechanical test methodologies including small punch, shear punch, hardness, nano-indentation and profilometry based indentation plastometry experiments; a set of mechanical test approaches that have yet to be directly compared and discussed in a single study on an additively manufactured material. Findings will be supported by advanced microscopy in the form of field emission SEM and crystallographic texture maps produced through electron back-scattered diffraction. Journal Article Journal of Materials Research and Technology 26 9328 9345 Elsevier BV 2238-7854 Small-scale testing, additive manufacturing, small punch, shear punch, nano-indentation, profilometry based indentation plastometry 5 10 2023 2023-10-05 10.1016/j.jmrt.2023.09.224 http://dx.doi.org/10.1016/j.jmrt.2023.09.224 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University External research funder(s) paid the OA fee (includes OA grants disbursed by the Library) EPSRC, EP/M028267/1 2023-10-19T09:34:19.3257534 2023-09-22T09:00:19.5429037 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Robert Lancaster 0000-0002-1365-6944 1 N.C. Barnard 2 B. Haigh 3 Elizabeth Sackett 0000-0002-5975-6967 4 P.E. May 0009-0005-6550-3850 5 D. Britton 0000-0003-2348-3546 6 Spencer Jeffs 0000-0002-2819-9651 7 64595__28760__0e956f4d91f44693a67c88d88b6b2e2d.pdf 64595VoR.pdf 2023-10-10T11:57:39.0144002 Output 4469554 application/pdf Version of Record true © 2023 The Author(s). Published by Elsevier B.V. Distributed under the terms of a Creative Commons Attribution 4.0 License (CC BY 4.0). true eng http://creativecommons.org/licenses/by/4.0/
title Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
spellingShingle Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
Robert Lancaster
Elizabeth Sackett
Spencer Jeffs
title_short Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
title_full Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
title_fullStr Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
title_full_unstemmed Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
title_sort Evaluating the Efficacy of Alternative Small Scale Test Methodologies in Deriving the Mechanical Properties of Additive Manufactured Materials
author_id_str_mv e1a1b126acd3e4ff734691ec34967f29
55d1695a53656de6b0bdfa4c08d8bcd4
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author_id_fullname_str_mv e1a1b126acd3e4ff734691ec34967f29_***_Robert Lancaster
55d1695a53656de6b0bdfa4c08d8bcd4_***_Elizabeth Sackett
6ff76d567df079d8bf299990849c3d8f_***_Spencer Jeffs
author Robert Lancaster
Elizabeth Sackett
Spencer Jeffs
author2 Robert Lancaster
N.C. Barnard
B. Haigh
Elizabeth Sackett
P.E. May
D. Britton
Spencer Jeffs
format Journal article
container_title Journal of Materials Research and Technology
container_volume 26
container_start_page 9328
publishDate 2023
institution Swansea University
issn 2238-7854
doi_str_mv 10.1016/j.jmrt.2023.09.224
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
url http://dx.doi.org/10.1016/j.jmrt.2023.09.224
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description With the continuous drive of the aerospace industry to implement additive manufactured (AM) components into the next generation of aero-engines, to benefit from the near net shape and weight saving potential that the technology has to offer, the requirement to understand their mechanical performance is also rising in parallel. This is further complicated by the highly localised and transient micro/macro structures that AM produced parts typically possess, raising a question mark over the suitability of more traditional mechanical test approaches where the bulk properties are heavily influenced by the presence of a single defect. As such, alternative experimental approaches, capable of establishing the properties of smaller more intricate structures and geometrically representative microstructures and cross sections, needs to be considered for process parameter down-selection. This paper will explore the suitability of several alternative mechanical test methodologies in characterising the mechanical behaviour of a nickel based superalloy, Inconel 718 (IN718), produced by laser powder bed fusion (LPBF), and establish which results correlate most favourably to those generated through more conventional means. For the first time, results will be presented from several mechanical test methodologies including small punch, shear punch, hardness, nano-indentation and profilometry based indentation plastometry experiments; a set of mechanical test approaches that have yet to be directly compared and discussed in a single study on an additively manufactured material. Findings will be supported by advanced microscopy in the form of field emission SEM and crystallographic texture maps produced through electron back-scattered diffraction.
published_date 2023-10-05T09:34:21Z
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