Emerging metallic systems for additive manufacturing: In-situ alloying and multi-metal processing in laser powder bed fusion

Emerging metallic systems for additive manufacturing: In-situ alloying and multi-metal processing in laser powder bed fusion

While significant progress has been made in understanding laser powder bed fusion (L-PBF) as well as the fabrication of various materials using this technology, there is still limited adoption in the industry. One of the key obstacles identified is the lack of materials that can truly manufacture fu...

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Bibliographic Details
Published in:Progress in materials science Vol. 119; p. 100795
Main Authors: Sing, S.L., Huang, S., Goh, G.D., Goh, G.L., Tey, C.F., Tan, J.H.K., Yeong, W.Y.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-06-2021
Elsevier BV
Subjects:
3D printing
Additive manufacturing
Alloying
In-situ alloying
Machine learning
Materials science
Multi-material
Powder bed fusion
Powder beds
Process parameters
Processing parameters
R&D
Research & development
Selective laser melting
Powder bed fusion
Selective laser melting
Processing parameters
Machine learning
Additive manufacturing
3D printing
In-situ alloying
Multi-material
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Summary:While significant progress has been made in understanding laser powder bed fusion (L-PBF) as well as the fabrication of various materials using this technology, there is still limited adoption in the industry. One of the key obstacles identified is the lack of materials that can truly manufacture functional parts directly with L-PBF. This paper covers the emerging research on in-situ alloying and multi-metal processing. A comprehensive overview of the underlying scientific topics behind them is presented. The current state of research and progress from different perspectives (the materials and L-PBF processing parameters) are reviewed in order to provide a basis for follow-up research and development of these approaches. Defects, especially those associated with these two material processing routes, are also elucidated by discussing the mechanisms of their formation, including the main influencing factors, and the tendency for them to occur. Future research trends and potential topics are illustrated. The final part of this paper summarizes findings from this review and outlines the possibility of in-situ alloying and multi-metal processing using L-PBF.
ISSN:0079-6425
1873-2208
DOI:10.1016/j.pmatsci.2021.100795