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Open AccessArticle

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

1
Institute of Structural Materials, Bay Campus, Swansea University, Swansea SA1 8EN, UK
2
Rolls-Royce plc, P.O. Box 31, Derby DE24 8BJ, UK
*
Authors to whom correspondence should be addressed.
Metals 2019, 9(11), 1191; https://doi.org/10.3390/met9111191
Received: 9 October 2019 / Revised: 29 October 2019 / Accepted: 4 November 2019 / Published: 6 November 2019
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. View Full-Text
Keywords: additive manufacturing; nickel superalloy; process parameters; CM247LC additive manufacturing; nickel superalloy; process parameters; CM247LC
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MDPI and ACS Style

Hilal, H.; Lancaster, R.; Stapleton, D.; Baxter, G. Investigating the Influence of Process Parameters on the Structural Integrity of an Additively Manufactured Nickel-Based Superalloy. Metals 2019, 9, 1191.

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