Evaluation of susceptibility of hydrogen-induced cracking in micro-alloyed armour steel welds using a geometry-modified implant test |
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| Authors: | Jimy Unfried Silgado Edwar Torres Lopez Antonio Jose Ramirez Jorge Giraldo Barrada |
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| Affiliation: | 1. National Laboratory of Synchrotronic Light – LNLS , Campinas, S?o Paulo, Brazil;2. Welding Group , National University of Colombia Medellín Campus , Bogotá, Colombia |
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| Abstract: | Susceptibility to hydrogen-induced cracking (HIC) was evaluated in steel welds for quenched and tempered armouring steel of 4.5 mm thickness. The welds were produced using the shielded metal arc welding process with low heat support and AWS E11018M 2.4 mm consumable. The susceptibility to HIC was evaluated by means of an implant test with modified geometry in welded joints with and without preheating being applied, using consumables in ideal stock conditions and exposed to the atmosphere. It was found that the consumable stock conditions were more relevant than preheating in regard to susceptibility to HIC. |
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| Keywords: | ballistic armouring hydrogen-induced cracking (HIC) implant test |
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