The present study reveals the patterns in the formation of the structure and properties of an EP659A-VI maraging steel in various modes of hybrid multilayer CMT technology. Panoramic macrostructural images of weld deposits are obtained to reveal alternating areas of large columnar and equiaxial crystals, as well as the effect of the applied CMT modes on the macrostructure of weld deposits. Regardless of the CMT process mode, the microstructure of an EP659A-VI steel in various areas of the weld deposit is represented by block martensite having a constant level of microhardness according to metallographic and durometric studies. The positive effect of layered forging during the CMT process on the total level of steel strength characteristics while retaining plasticity is established.
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Translated from Metallurg, Vol. 67, No. 2, pp. 38–55, February, 2023. Russian https://doi.org/10.52351/00260827_2023_02_38.
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Trushnikov, D.N., Simonov, M.Y., Shchitsyn, Y. et al. Cold Metal Transfer in the Additive Formation of High-Alloy Steel Workpieces. Part 1. Metallurgist 67, 154–165 (2023). https://doi.org/10.1007/s11015-023-01502-7
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DOI: https://doi.org/10.1007/s11015-023-01502-7