Tomaž Vuherer (Author), P. O. Maruščak (Author), Ivan Samardžić (Author)

Abstract

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.

Keywords

zvarni spoji;rast zrn;mikrostruktura;mehanske lastnosti;meja tečenja;Parisova krivulja;zaostale napetosti;welded joints;coarse grain HAZ;microstructure;fatigue limit;Paris curve;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 621.791.051:539.388.1
COBISS: 15989526 Link will open in a new window
ISSN: 0543-5846
Views: 1323
Downloads: 79
Average score: 0 (0 votes)
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Other data

Secondary language: Croatian
Secondary title: Ponašanje grubozrne zone utjecaja topline (ZUT) zavara tijekom cikličkog opterećenja
Secondary abstract: 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.
Secondary keywords: zvarni spoji;rast zrn;mikrostruktura;mehanske lastnosti;meja tečenja;Parisova krivulja;zaostale napetosti;
URN: URN:SI:UM:
Type (COBISS): Scientific work
Pages: str. 301-304
Volume: 51
Issue: 3
Chronology: 2012
Keywords (UDC): applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;mechanical engineering in general;nuclear technology;electrical engineering;machinery;strojništvo;mechanical technology in general: processes;tools;machines;equipment;obdelava z deformacijo;obdelava brez odrezovanja;toplotna obdelava;mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;physical nature of matter;fizikalna zgradba snovi;elasticity;deformation;mechanics of elastic solids;elastičnost;deformacije;mehanika elastičnih teles;
ID: 1439045
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