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Information × Registration Number 0218U100044, 0115U006673 , R & D reports Title Investigation regularities of resistance of fatigue and increase efficiency cyclic durability finishing thick sheet rolling of aluminum alloying welded joints of aluminum alloying Al-Zn- Mg by system alloying, produced by electron beam welding popup.stage_title Head Knysh Vitalii , Доктор технічних наук Registration Date 20-12-2018 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2 The research was carried out with the purpose of solving the actual problem of providing high indexes of strength and resistance to fatigue of welded joints of sheet metal rolled high-strength aluminum alloy 7056 containing up to 9,8% Zn. To achieve the goal, the following research methods were used as mechanical methods for testing samples for stretching; testing of welded specimens on fatigue; measurements of residual stresses by acoustic method; measurements of the hardness of the metal by Rockwell and Vickers; metallographic studies of welded joints. As a result, the structural features of the formation of compounds of high-strength thermally reinforcing aluminum alloy 7056 with high zinc content were obtained for EPZ and IDPPE; a comparative analysis of the degree of deterioration and durability of the welded joints of the investigated aluminum alloy obtained by the EPZ and IDPPE; The regularities of the resistance to cyclic loading of welded joints of thermally reinforcing aluminum alloy 7056, executed by EPZ and IDZPE, are established; the effective parameters of the strengthening of the VMP technology of the welded joints of alloy 7056 obtained by the EPZ are established; The regularities of increase of cyclic durability of welded joints of aluminum alloy 7056, obtained by EPZ and strengthened by the technology of VMP, were investigated. Product Description popup.authors popup.nrat_date 2020-04-02 Close