Additive Manufacturing of SS316L/IN718 Bimetallic Structure via Laser Powder Bed Fusion

Laser powder bed fusion (LPBF) is a popular additive manufacturing (AM) technique that has demonstrated the capability to produce sophisticated engineering components. This work reports the crack-free fabrication of an SS316L/IN718 bimetallic structure via LPBF, along with compositional redistributi...

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Detalles Bibliográficos
Autores principales: Mahmud, Asif, Ayers, Nicolas, Huynh, Thinh, Sohn, Yongho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10573787/
https://www.ncbi.nlm.nih.gov/pubmed/37834664
http://dx.doi.org/10.3390/ma16196527
Descripción
Sumario:Laser powder bed fusion (LPBF) is a popular additive manufacturing (AM) technique that has demonstrated the capability to produce sophisticated engineering components. This work reports the crack-free fabrication of an SS316L/IN718 bimetallic structure via LPBF, along with compositional redistribution, phase transformations and microstructural development, and nanohardness variations. Constituent intermixing after LPBF was quantitatively estimated using thermo-kinetic coefficients of mass transport and compared with the diffusivity of Ni in the austenitic Fe-Ni system.

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