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Information × Registration Number 0222U003361, 0120U102422 , R & D reports Title Scientific fundamentals of nanomaterials application for pressure welding technologies of modern and promising high temperature alloys popup.stage_title Head Kuchuk-Yatsenko Sergii I., Доктор технічних наук Registration Date 11-03-2022 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2  The formation of dissimilar joints of gamma- and ortho-aluminides of titanium in vacuum diffusion welding in (VDW) and resistance butt welding (RBW) using nanostructured interlayer in the form of nanolayer foil (NF) was studied. It was found that in the case of VDW of TiAlNb and Ti2AlNb alloys without interlayer, defects in the form of pores are observed in the joint zone, and a layer of brittle phase Al(Nb,Ti)2 is formed. It is shown that the use of Ti–Ni–Nb NF with a titanium content of ~50 (weight %) as interlayer at optimum mode of VDW allows to receive defect-free joints of gamma- and ortho-aluminides of titanium. It was found that the RBW of gamma- and ortho-aluminides of titanium to titanium using NF Ti/Al promotes localization of heat in the contact zone, activation of welded surfaces, and provides the formation of defect-free dissimilar joints with a significant reduction in heating time. Product Description popup.authors Zavertannyu Miroslav S. Ziakhor Ihor V. Nakonechnyy Andriy O Petrushinets Lidiya V. Fedorchuk Viktor E popup.nrat_date 2022-03-11 Close