ϕ Paper detail :
Effect of temperature and exploitation time on tensile properties and plain strain fracture toughness, K Ic, in a welded
joint Ivica Čamagića , Simon Sedmakb *, Aleksandar Sedmakc , Zijah Burzićd , Mladen Marsenića a Faculty of Technical
Sciences, 7 Kneza Miloša Street, 38220 K. Mitrovica, Serbia b Innovation Center of the Faculty of Mechanical Engineering,
16 Kraljice Marije Street, 11120 Belgrade, Serbia c Faculty of Mechanical Engineering, 16 Kraljice Marije Street, 11120
Belgrade, Serbia d Military Technical Institute, 2 Ratka Resanovića Street, 11000 Belgrade, Serbia
ϕ Paper Source :
Available online at at www.sciencedirect.com
ϕ Succinct of the paper :
By reading this paper we have studied the testing results of tensile properties of specimens taken from the welded joint
of the new PM(parent metal) and WM (weld metal), from which now we can concluded that increased temperature
reduces strength properties, but increases elongation. The increase of elongation with the temperature increase is
explained by the increased overall plasticity of the material at higher temperatures. Also, the exploitation time significantly
impacts the reduction of strength properties and strain properties, which can be related to the microstructures of the
exploited and new PM. Based on the results in the paper we come up with conclusion that the lowest resistance to the
crack propagation, not surprisingly, belongs to HAZ (heat effected zone), whereas the highest resistance to crack
propagation, somewhat surprisingly, belongs to WM.
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