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The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys

Powder Interlayer Bonding (PIB) has been considered as a lower-energy joining technology for nickel-based superalloys compared to conventional methods; such as friction welding. Typically; nickel-based superalloys exhibit high energy requirements for joining due to their high operating temperatures....

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Autores principales: Stanners, Olivia, John, Sean, Davies, Helen M., Watkins, Ieuan, Marchisio, Silvia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040713/
https://www.ncbi.nlm.nih.gov/pubmed/32013068
http://dx.doi.org/10.3390/ma13030601
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author Stanners, Olivia
John, Sean
Davies, Helen M.
Watkins, Ieuan
Marchisio, Silvia
author_facet Stanners, Olivia
John, Sean
Davies, Helen M.
Watkins, Ieuan
Marchisio, Silvia
author_sort Stanners, Olivia
collection PubMed
description Powder Interlayer Bonding (PIB) has been considered as a lower-energy joining technology for nickel-based superalloys compared to conventional methods; such as friction welding. Typically; nickel-based superalloys exhibit high energy requirements for joining due to their high operating temperatures. However; PIB utilizes a localized temperature gradient created by an induction current; reducing the energy requirements for the process. PIB is a solid-state joining method that compresses and heats a powder interlayer between two faying surfaces to produce one joined workpiece. It has been successfully used to bond titanium alloys; and the objectives of this work were to explore its application as a joining method for nickel-based superalloys. Initial results showed that joining nickel-based superalloys via PIB is possible; and bondlines with very little porosity were observed. Further analysis showed that these bonded areas had lower porosity than the base material; suggesting PIB could be a successful joining method for difficult-to-join nickel-based superalloys.
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spelling pubmed-70407132020-03-09 The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys Stanners, Olivia John, Sean Davies, Helen M. Watkins, Ieuan Marchisio, Silvia Materials (Basel) Article Powder Interlayer Bonding (PIB) has been considered as a lower-energy joining technology for nickel-based superalloys compared to conventional methods; such as friction welding. Typically; nickel-based superalloys exhibit high energy requirements for joining due to their high operating temperatures. However; PIB utilizes a localized temperature gradient created by an induction current; reducing the energy requirements for the process. PIB is a solid-state joining method that compresses and heats a powder interlayer between two faying surfaces to produce one joined workpiece. It has been successfully used to bond titanium alloys; and the objectives of this work were to explore its application as a joining method for nickel-based superalloys. Initial results showed that joining nickel-based superalloys via PIB is possible; and bondlines with very little porosity were observed. Further analysis showed that these bonded areas had lower porosity than the base material; suggesting PIB could be a successful joining method for difficult-to-join nickel-based superalloys. MDPI 2020-01-29 /pmc/articles/PMC7040713/ /pubmed/32013068 http://dx.doi.org/10.3390/ma13030601 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Stanners, Olivia
John, Sean
Davies, Helen M.
Watkins, Ieuan
Marchisio, Silvia
The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
title The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
title_full The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
title_fullStr The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
title_full_unstemmed The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
title_short The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
title_sort effect of processing variables on powder interlayer bonding in nickel-based superalloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040713/
https://www.ncbi.nlm.nih.gov/pubmed/32013068
http://dx.doi.org/10.3390/ma13030601
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