Charpy žilavost vibriranih mikrostruktura

Autor: B. Pučko, V. Gliha
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Metalurgija, vol. 44, no. 2, pp. 103-106, 2005.
Metalurgija
Volume 44
Issue 2
ISSN: 1334-2576
0543-5846
Popis: The aim of this study was to investigate the influence of vibration on impact toughness of weld metal. Studies were carried out on two welds, of which one had been welded with applying vibration during welding. From test plates samples were made to simulate heat affect in combination with or without vibration after solidification. This way conditions at multi-pass welding were simulated. According to different conditions Charpy toughness on non standard specimens and fracture appearance were observed. Vibration during welding benefits impact energy of weld metal, especially if weld metal undergoes further heat treatment.
Namjena ovog članka je istraživanje utjecaja vibriranja na udarnu žilavost zavara. S namjenom istraživanja zavarena su dva zavara s istim parametrima, s tim da je jedan od zavara tijekom procesa zavarivanja bio podvrgnut vibraciji. Iz probnih ploča uzeti su uzorci koji su bili dodatno grijani u peći. Neki uzorci su bili dodatno vibrirani u peći. Tim postupkom simulirano je višeprolazno zavarivanje. Mjerena je Charpy žilavost na nestandardnim uzorcima i analizirani prelomi obzirom na različite uvjete grijanja i vibriranja. Vibracije za vrijeme zavarivanja povećavaju udarnu žilavost zavara, posebno ako je zavar podvrgnut naknadnom toplinskom utjecaju.
Databáze: OpenAIRE