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Naslov:Comparison of the mechanical properties of hardfacings made by standard coated stick electrodes and a newly developed rectangular stick electrode
Avtorji:ID Bjelajac, Edvard (Avtor)
ID Skumavc, Andrej (Avtor)
ID Lojen, Gorazd (Avtor)
ID Manjgo, Mirza (Avtor)
ID Vuherer, Tomaž (Avtor)
Datoteke:.pdf materials-17-02051-v2.pdf (10,82 MB)
MD5: D6E61CB47EAD408AFE41C3DFF61F13E7
 
URL https://www.mdpi.com/1996-1944/17/9/2051
 
Jezik:Angleški jezik
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Opis: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.
Ključne besede:hardfacing, dilution rate, hardness, Charpy impact toughness, residual stress, fracture toughness
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Poslano v recenzijo:23.04.2024
Datum sprejetja članka:25.04.2024
Datum objave:27.04.2024
Založnik:MDPI
Leto izida:2024
Št. strani:22 str.
Številčenje:Vol. 17, iss. 9, [article no.] 2051
PID:20.500.12556/DKUM-88589 Novo okno
UDK:621.791
COBISS.SI-ID:195422979 Novo okno
DOI:10.3390/ma17092051 Novo okno
ISSN pri članku:1996-1944
Datum objave v DKUM:14.05.2024
Število ogledov:121
Število prenosov:8
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Ostalo
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Gradivo je del revije

Naslov:Materials
Skrajšan naslov:Materials
Založnik:Molecular Diversity Preservation International
ISSN:1996-1944
COBISS.SI-ID:33588485 Novo okno

Gradivo je financirano iz projekta

Financer:ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:P2-0120-2022
Naslov:Tehnologije metastabilnih materialov

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:navarjanje, hitrost redčenja, trdota, udarna žilavost po Charpyju, zaostale napetosti, lomna žilavost


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