Mechanical and microstructural characterisation of Inconel 625 - AISI 431 steel bulk produced by direct laser deposition

Investigating the relationship between mechanical properties and residual stress in the laser cladding process of Inconel 625 superalloy

“…It can be observed that the distance of the dendritic arm has an inverse relationship with the rate of cooling and the temperature gradient. The laser deposition process is usually characterized with a very high temperature gradient (∼10 6 K/mm), therefore the obtained microstructure is expected to be fine-grained, and thus, λ will be reduced [ [29] , [30] , [31] , [32] , [33] ]. Also, A and n for laser-deposited Inconel 625 are equal to 34 and -0.33, respectively [ [28] , [29] , [30] , [31] , [32] , [33] ].…”

“…The laser deposition process is usually characterized with a very high temperature gradient (∼10 6 K/mm), therefore the obtained microstructure is expected to be fine-grained, and thus, λ will be reduced [ [29] , [30] , [31] , [32] , [33] ]. Also, A and n for laser-deposited Inconel 625 are equal to 34 and -0.33, respectively [ [28] , [29] , [30] , [31] , [32] , [33] ]. Electrochemical process of 1 gr chromic acid (CrO 3 ) and 10 ml distilled water (with a voltage of 10 V for 8 s) using a solution at 25 °C temperature.…”

Functionally Graded Additive Manufacturing of Thin-Walled 316L Stainless Steel-Inconel 625 by Direct Laser Metal Deposition Process: Characterization and Evaluation

“…Sargent et al [18] investigated the powder-based DED to find novel alloys by mixing SS316L with Inconel 718. Ferreira et al [19] fabricated In research conducted by Yu et al [8], the effect of the Cr/Mo ratio on the mechanical properties and weldability of four nickel-based superalloys in the additive manufacturing process was investigated. The results showed that by decreasing the Cr/Mo ratio, the inter-dendritic phases evolved from lath and eutectic Laves phases to blocky P phases.…”

“…Sargent et al [18] investigated the powder-based DED to find novel alloys by mixing SS316L with Inconel 718. Ferreira et al [19] fabricated the Inconel 625/AISI 431 steel bulk material using the DED process. Kim et al [20] investigated the microstructure, defect behavior, and microhardness of the Inconel 718-SS316L FGM fabricated by DED.…”