A Preliminary Study on the Quality of Joining AISI 316 and AISI 3415 Steel by the Near Solidus Forming Process

Plata, Gorka; Lozares, Jokin; Hurtado, Iñaki

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Title

A Preliminary Study on the Quality of Joining AISI 316 and AISI 3415 Steel by the Near Solidus Forming Process

Author

Plata, Gorka

Lozares, Jokin Mondragon Unibertsitatea

Hurtado, Iñaki

Author (from another institution)

Gordo-Burgoa, Olaia

Sánchez Fernández, Andrea

Bakedano Abaunza, Asier

Slater, Carl

Research Group

Procesos avanzados de conformación de materiales

xmlui.dri2xhtml.METS-1.0.item-contributorOtherinstitution

https://ror.org/00ne6sr39
Fundación Idonial
https://ror.org/009mwwv16

Version

http://purl.org/coar/version/c_970fb48d4fbd8a85

Rights

Access

http://purl.org/coar/access_right/c_abf2

URI

https://hdl.handle.net/20.500.11984/6109

Publisher’s version

https://doi.org/10.3390/met13071230

Published at

Metals Vol. 13. N. 7. N. art. 1230, 2023

Publisher

MDPI

Keywords

stainless steel
NSF
Diffusion
joining ... [+]

stainless steel
NSF
Diffusion
joining
biomaterial
semi-solid
Coforging [-]

Abstract

In this study, the Near Solidus Forming (NSF) process, which falls under the umbrella of semi-solid processes, was utilized to coforge an AISI 316 tube and an AISI 3415 rod into an as-forged valve geometry. The billet used for the process was kept as large as possible to increase the contact surface area between the two materials. The process was carried out at 1360 ◦C in a single stroke, almost completely filling the geometry. No joining was observed in areas where low strains were expected, but in regions with medium to high strains, cross-diffusion of 2–7 µm was observed. The presence of small oxide particles was also observed in the joint due to the bimetallic billet shape. [-]