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Investigating the Influence of Process Parameters on the Structural Integrity of an Additively Manufactured Nickel-Based Superalloy

Hani Hilal, Robert Lancaster Orcid Logo, Dave Stapleton, Gavin Baxter

Metals, Volume: 9, Issue: 11, Start page: 1191

Swansea University Authors: Hani Hilal, Robert Lancaster Orcid Logo

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DOI (Published version): 10.3390/met9111191

Abstract

Additive manufacturing (AM) is a novel near net shape manufacturing technology that joins metallic powders layer upon layer in conjunction with 3D model data and as such offers tremendous potential to a wide range of industrial sectors given its ability to produce highly intricate components with ve...

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Published in: Metals
ISSN: 2075-4701
Published: MDPI AG 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa52638
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Abstract: Additive manufacturing (AM) is a novel near net shape manufacturing technology that joins metallic powders layer upon layer in conjunction with 3D model data and as such offers tremendous potential to a wide range of industrial sectors given its ability to produce highly intricate components with very little material wastage. Subsequently, the aerospace industry has become particularly interested in utilising AM as a means of manufacturing nickel-based superalloys for high-temperature applications, such as non-rotating components within gas turbine engines, which are traditionally fabricated through traditional cast and wrought methodologies. As a result of this, a detailed understanding of the influence of key process variables on the structural integrity of the different experimental builds is required. A semi-empirical quantitative approach for melt track analysis has been conducted and the impact on melt track sizing and defect forming mechanisms in the as-built and heat-treated condition is investigated.
Keywords: additive manufacturing; nickel superalloy; process parameters; CM247LC
College: Faculty of Science and Engineering
Funders: UKRI, EP/H022309/1
Issue: 11
Start Page: 1191