20.500.12556/DKUM-26993 Behaviour of coarse grain heat affected zone (HAZ) during cycle loading Ponašanje grubozrne zone utjecaja topline (ZUT) zavara tijekom cikličkog opterećenja This paper presents results of a study on martensitic coarse grain heat affected zone that can appear in welded joints. Mechanical properties of martensitic coarse grain heat affected zone and its microstructure were investigated. Special attention was given to its behaviour during the cycle loading under stress concentration. Stress concentration was similar to the one in real welds. The S-N curve and the fatigue limit were determined. The Paris curve and the threshold for crack propagating were also determined. U radu se istražuje martenzitna grubozrnata zona utjecaja topline koja se može pojaviti pri zavarivanju. Istražena su mehanička svojstva i mikrostruktura ove zone. Posebna je pažnja posvećena njenom ponašanju tijekom cikličkog opterećenja kada je prisutna koncentracija naprezanja. Koncentracija naprezanja je slična onoj kod realnog zavarivanja. Određena je S-N krivulja i granica umaranja. Također je određena i Parisova krivulja i prag propagacije pukotine. welded joints coarse grain HAZ microstructure fatigue limit Paris curve zvarni spoji rast zrn mikrostruktura mehanske lastnosti meja tečenja Parisova krivulja zaostale napetosti true false true Angleški jezik Hrvaški jezik Znanstveno delo 2012-06-01 09:26:41 2012-06-01 09:26:41 2022-04-15 13:35:54 2023-12-31 03:09:05 2012 0 0 str. 301-304 št. 3 Letn. 51 2012 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1334-2576 621.791.051:539.388.1 524301593 15989526 1334-2576 URN:SI:UM:DK:CAEBJX7H RAZ_Vuherer_Tomaz_i2012.pdf RAZ_Vuherer_Tomaz_i2012.pdf 1 DD34859E66EDB2504443F6CEDC417892 75df960c5eae6ca69175daf342969f76a536f667b78bd4dea4cd181812d3ccd3 3fa72877-7c07-11eb-bb7a-00155d0001ca 20.500.12556/dkum/7a614c76-5267-4418-ace7-e4a1eecef5fc https://dk.um.si/Dokument.php?lang=slv&id=36221 http://hrcak.srce.hr/80847 1 https://dk.um.si/Dokument.php?lang=slv&id=36222 Fakulteta za strojništvo 0 0 0