20.500.12556/DKUM-88589 Comparison of the mechanical properties of hardfacings made by standard coated stick electrodes and a newly developed rectangular stick electrode Cladding with a stick electrode is one of the oldest arc processes for adding a deposit on a base material. The process is suitable for outdoor working, but the disadvantages are low productivity and large dilution rates. In this work, a simple solution is proposed, which would enable cladding of a larger area with one pass and decrease the dilution rate at the same time—a new type of electrode was developed, exhibiting a rectangular cross-section instead of a round one. Hardfacings, welded with E Fe8 electrodes according to EN 14 700 Standard were welded on mild steel S355 J2 base material with three different coated stick electrodes. The first one was a commercially available, standard, round hardfacing electrode, the second was the same, but with a thinner coating, and the third one was a newly developed rectangular electrode. All three types had equal cross-sections of the metallic core and the same type of coating. Manufacturing of the rectangular electrodes in the laboratory is explained briefly. One- and multi-layer deposits were welded with all three types. Differences were observed in the arc behavior between the round and rectangular electrodes. With the rectangular electrode, the microstructure of the deposit was finer, penetration was shallower, and dilution rates were lower, while the hardness was higher, residual stresses predominantly compressive, and the results of instrumented Charpy impact tests and fracture mechanics tests were better. hardfacing dilution rate hardness Charpy impact toughness residual stress fracture toughness navarjanje hitrost redčenja trdota udarna žilavost po Charpyju zaostale napetosti lomna žilavost true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/materials © 2024 by the authors Članek v reviji 2024-05-14 15:03:42 2024-05-14 15:03:43 2026-01-28 07:39:49 0000-00-00 00:00:00 2024 0 0 22 str. iss. 9, [article no.] 2051 Vol. 17 April 2024 0000-00-00 Zaloznikova Objavljeno apc 2024-03-30 2024-04-25 2024-04-27 621.791 195422979 10.3390/ma17092051 1996-1944 materials-17-02051-v2.pdf materials-17-02051-v2.pdf 1 D6E61CB47EAD408AFE41C3DFF61F13E7 1dd5d84cd7faab033ffcfb2b0fbc241cf1dd45692d736154e23d29b46cf46744 0d534cbe-11f3-11ef-a5e2-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=179294 https://www.mdpi.com/1996-1944/17/9/2051 0 259dbb49-11f3-11ef-a5e2-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=179295 Fakulteta za strojništvo 0 0 0