Uticaj temperature predgrevanja na mehaničke karakteristike suočeno zavarenog spoja nodularnog liva

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Lazar Brestovački
"Cobalt" d.o.o., Bačka Palanka, Srbija
Bela Sabo
Fakultet tehničkih nauka, Novi Sad, Srbija
Katarina Gerić
Fakultet tehničkih nauka, Novi Sad, Srbija

Apstrakt

Ispitivanje je izvršeno na nodularnom livu sa feritno-perlitnom mikrostrukturom, sa 90% ferita. Željena količina ferita je dobijena nakon feritizacionog žarenja. Zavarivanje sučeonih spojeva je izvedeno tehnologijom sa predgrevanjem i bez njega. Zavarivanje je izvršeno TIG postupkom sa austenitnim dodatnim materijalom EN12072: W 18 8 Mn. U cilju karakterizacije mehaničkih osobina vršena su ispitivanja zatezanjem na epruvetama sa paralelnim bokovima, ispitivana je energija udara po Šarpi KCV metodi, a na poprečnom preseku zavarenih spojeva merena je Vikersova tvrdoća HV10 prema SRPS EN 288-3. Uticaj geometrijskih karakteristika šava na rezultate ispitivanja zatezanjem i energije udara je eliminisan pogodnom pripremom epruveta. Rezultati ispitivanja su pokazali da primena predgrevanja u tehnologiji zavarivanja vrši uticaj na sve mehaničke karakteristike zavarenog spoja.

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Kako citirati
BRESTOVAČKI, Lazar; SABO, Bela; GERIĆ, Katarina. Uticaj temperature predgrevanja na mehaničke karakteristike suočeno zavarenog spoja nodularnog liva. Zbornik Međunarodnog kongresa o procesnoj industriji – Procesing, [S.l.], v. 23, n. 1, may 2017. Dostupno na: <https://izdanja.smeits.rs/index.php/ptk/article/view/2462>. Datum pristupa: 16 mar. 2026
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Broj časopisa
God. 23 Br. 1 (2010): 23. Procesing; 26. Zavarivanje; 26. IBR
Sekcija
Tehnička regulativa, standardizacija i sistem kvaliteta
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Reference

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