The effect of alloying elements on fracture resistance of E7010-P1 cellulosic welding electrodes

In this paper, Assessment for fracture resistance of three different cellulosic welding electrodes (type E7010-P1) with various chemical compositions is made. This assessment is done by using Failure Assessment Diagram (FAD) method and based on the principles of fracture mechanics in accordance with BS 7910-2015 standard. The mechanical and fracture toughness properties of weld materials have been determined carrying out tensile test as well as CTOD fracture toughness test. The results are then used for finite element (FE) simulations in ABAQUS commercial software to compute stress intensity factor (SIF) along the crack front in the weld material. These results are then used to plot FAD curves and assessment points for each welding electrode to evaluate the existing crack in simulation. The analysis reveals that the presence of different amount of Mn in the weld metal influences directly on the resistance to fracture in weld metal at moderate temperature applications. (paper)