Overlapping and progressive forming method for high-performance multi-element NiAl-based alloy tubular part

An overlapping and progressive forming method for a high-performance multi-element NiAl-based alloy tubular part, comprising:

• winding continuously flexible substrates of Ni and Al, and coating continuously or selectively along a width direction or a rolling direction to obtain coated flexible substrates;
• winding continuously the coated flexible substrates on an outer surface of a core roller according to a sequence of Ni above and Al below to form a Ni/Al laminated structure having a plurality of layers with an outermost layer of the Ni/Al laminated structure being a Ni layer, and consolidating with ultrasonic with assistance of a pulse current to combine the continuously wound flexible substrates into a laminated tube blank;
• and
• placing the laminated tube blank into a mold, applying a pulse current to both ends of the laminated tube blank for hot fluid high-pressure forming, and synthesizing in-situ to prepare the high-performance multi-element NiAl-based alloy tubular part with assistance of the pulse current.