Fracture Toughness and Charpy CVN Data for A36 Steel with Wet Welding

Abstract

This study presents K IC data obtained from K IC -CVN correlations from Charpy CVN values. For this study, T-welded connections were manufactured from ASTM A36 and E6013 electrodes in dry conditions. Then, a rectangular grinding at the weld toe was carried out and filled with wet welding. Charpy specimens were extracted to obtain CVN values. An exhaustive search through the literature of several authors was performed to collect experimental CVN data about wet welding being applied to A36 steel for comparison with CVN data obtained in this study. By using Charpy impact energy (CVN), K IC values could be predicted by K IC -CVN correlations. In addition, correlations were presented to obtain K IC values in the lower shelf, transition temperature zones and different zones for the energy-temperature curve of A36 steel. Of these correlations, Barsom's equation was adopted, because he applied the stress yield (σ YS ) of the material and it can be applied in all zones for the energy-temperature curve. The results revealed that CVN values are proportionate to K IC , this data decreases as water depth increases. This took place because several discontinuities, such as, porosity, slag inclusion, non-metallic inclusion, cracking and microstructures are present in the wet welding.

Stir Casting Processing, Mechanical, and Wear Behavior of AA2024 +10 wt. % Flyash +5 wt. % Graphite Hybrid Composite

“…Te specimen subjected to impact is shown in Figure 6(c). Te Rolfe Novak Barsom upper shelf correlation [14][15][16] is given in equation ( 2) [17]. Using this equation, the fracture toughness was calculated with impact energy.…”