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Št. zadetkov: 4
Izvirni znanstveni članek
Oznake: varjenje;zvarni spoji;konstrucijska jekla;materiali;razpokanje;vodik;welding;welded joints;materials;structural steel;cracking;hydrogen;
We study the hydrogen embrittlement and rupture of specimens of high-strength low-alloy steel with weld beads subjected to hydrogenation under the conditions of cathodic polarization. The specimens fail in the heat-affected zone on the boundary between the main metal and the weld bead in the zone of ...
Leto: 2005 Vir: Fakulteta za strojništvo (UM FS)
Izvirni znanstveni članek
Oznake: zvarni spoji;rast zrn;mikrostruktura;mehanske lastnosti;meja tečenja;Parisova krivulja;zaostale napetosti;welded joints;coarse grain HAZ;microstructure;fatigue limit;Paris curve;
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 ...
Leto: 2012 Vir: Fakulteta za strojništvo (UM FS)
Izvirni znanstveni članek
Oznake: zvarni spoji;mikrostruktura;P91 jeklo;toplotno vplivano območje;toplotna obdelava;welded joints;microstructures;P91 steel;heat-affected zone;heat treatment;
In the process of testing real components exposed to elevated temperature, it is not possible to neglect cracks. The most significant cracks can be induced by welding, which is applied for joining of structural components. Pressure equipment in service is also exposed to high pressure and high stres ...
Leto: 2013 Vir: Fakulteta za strojništvo (UM FS)
Kratki znanstveni prispevek
Oznake: udarna žilavost;poškodbe, ki nastanejo pri obratovanju;železniške osi;zajeda;impact toughness;in-serice damage;railway axle;undercut;
The influence of temperature and specimens undercut place on impact toughness of railway axle material in service is investigated. The obtained results show inversely proportional dependence of impact toughness on undercut radius of specimens. The decrease of test temperature from +20 to –40 ºC decr ...
Leto: 2011 Vir: Fakulteta za strojništvo (UM FS)
Št. zadetkov: 4
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