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Conference object . 2022
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HAL Sorbonne Université
Conference object . 2022
https://doi.org/10.59499/wp225...
Article . 2022 . Peer-reviewed
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L-PBF And DED Processing Of A Ni-based Superalloy

Authors: Thomas, M; Charkaluk, Eric; Solas, Denis; Szmytka, Fabien; Locq, Didier; Morel, Ariel; Hubert, Olivier; +2 Authors

L-PBF And DED Processing Of A Ni-based Superalloy

Abstract

Different AM technologies such as PBF-LB and DED do become really attractive for both repair and 3D part manufacturing. In particular, extensive work is in progress for the non weldable nickel-based superalloys which tend to exhibit cracks due to residual stresses build-up during AM thermal cycles. Within the framework of the project FAPS conducted at Paris-Saclay, the present investigation will highlight the processing conditions and build-up strategy that produce crack-free specimens for alloy AD730. The latter was developed by Aubert&Duval for cast+wrought gas turbine applications. In this work, a comparison between such conventional processing and AM will be provided in terms of mechanical performance. The results clearly show an anisotropic behaviour related to the sharp crystallographic texture induced by the epitaxial grain growth. The results will be discussed, with a perspective analysis of maturity for this AM processed-material, the process robustness, the potential technological developments and application prospects.

Country
France
Keywords

[SPI] Engineering Sciences [physics], D. Solas, fabrication additive, microstructure, [CHIM] Chemical Sciences, propriétés mécaniques, Superalliages base Ni, [PHYS] Physics [physics]

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green