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Information × Registration Number 0222U002231, 0117U001262 , R & D reports Title Development of technology for large-sized ingots of intermetallic titanium aluminide based on the method of electron beam melting popup.stage_title Head Ahonin Sergei V., Доктор технічних наук Registration Date 10-02-2022 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2  Within current work, the technology of electron beam melting (EBM) of large ingots of intermetallic alloys of the TiAl system with different content of alloying elements has been developed. It was shown that a dense homogeneous structure is formed in the ingots. Areas with a rough columnar structure are absent. There is no significant difference in the nature of crystallization along the length of the ingot. The modes of electron-beam welding (EBW) of alloys based on titanium aluminide with the use of preheating and post-welding local heat treatment (LHT) have been developed. Preheating to 400 ° C and post-weld local heat treatment at 900 ° C are effective in prevention of cracks in metal joints of large ingots based on titanium aluminide. It is established that to ensure a homogeneous uniform structure in the welded joint of large ingots of alloys based on titanium aluminides after EBW requires the use of additional furnace treatment. Product Description popup.authors Bilous Valeriy Yu Berezos Volodymyr O Vrzyzewski Eduard L Pikulin Oleksandr M Petrichenko Iryna K Severyn Andrii Yu Selin Roman V popup.nrat_date 2022-03-09 Close