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Information × Registration Number 0219U100454, 0117U006046 , R & D reports Title PWI-2017/4 (Technology of underwater arc welding of low-alloy steels) popup.stage_title Head Maksimov Sergii Y., Доктор технічних наук Registration Date 13-02-2019 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2 The investigation of the influence of the metal doping system on the structure and mechanical properties of welded joints of low-alloy steels of high strength showed that the chosen doping system provides the formation of structures that are not prone to crack formation, and provides the following mechanical properties: σt ≥ 460 MPa; σv ≥ 600 MPa; δ ≥ 29%;  ≥ 47%. The training of specialists of the Naval Institute of the National University "Odessa Maritime Academy" was conducted. During the year three groups of divers were trained. Altogether, 11 divers were welded. For their training, methodical recommendations were developed. Upon completion of the training, the military divers took the examinations and received certificates of divers-welders. In order to meet the needs of the Naval Forces of Ukraine in the operational repair of damage to the underwater part of the ship's hull in the area of ​​combat mission, technological recommendations for submerged arc welding of low-alloy steels during operational repair for afloat were developed. On the basis of the results of the research carried out, an experimental batch of electrode materials for wet welding in all spatial positions of low-alloy steels of high strength was made and transferred to the Naval Search and Rescue Service of Ukraine.  Product Description popup.authors popup.nrat_date 2020-04-02 Close