Investigation of the Effect of Thermal Limiters on the Change in the Structure Formation of Deposited Multilayer Specimens from Steel AISI 308LSi

Abstract:

The work investigated the effect of thermal limiters on the distribution of heat in the product and the formation of the structure of multilayer samples made of stainless steel AISI 308LSi deposited by electric arc welding in argon. It was found that as a result of the formation of products using thermal limiters, the high temperature regions deepen towards the substrate. It was revealed that the greatest effect of thermal limiters is observed in the central parts of the products. An increase in the fraction of γ-Fe is observed, which is confirmed by the dissolution of the dendritic axes of δ-Fe, in the sample obtained using thermal limiters. The obtained results confirm the prospects for producing multilayer products with increased mechanical properties by the method of electric arc welding using thermal limiters.

• Periodical: Solid State Phenomena (Volume 328)
• Pages: 115-122
• DOI: https://doi.org/10.4028/p-c2fcq4
• Online since: February 2022
• Authors: Dmitry А. Chinakhov*, K.O. Akimov, A.S. Dubrovskiy, E.D. Rzaev
• Keywords: Additive Manufacturing, Dendritic Structure, Hardness, Thermal Limiter

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