The invention provides a method for improving a
titanium-aluminum laminated
composite material structure and improving mechanical performance.
Tungsten core SiC
ceramic fibers are pre-treated, and
NiTi alloy wires, Ti foil and Al foil are subjected to ultrasonic cleaning; the Ti foil, the
tungsten core SiC
ceramic fibers, the
NiTi alloy wires and the Al foil serve as a unit to be stacked according to the sequence of the Ti foil, the
tungsten core SiC
ceramic fibers, the
NiTi alloy wires, the Al foil and the Ti foil, the four SiC fibers are placed between every two NiTi
alloy wires, the interval is 1 mm, and the upper surface and the lower surface are both the Ti
layers; and
sintering is conducted on the unit through a vacuum
hot pressing device. According to the method for improving the
titanium-aluminum laminated
composite material structure and improving the mechanical performance, through the design principle that
nickel and
titanium elements in the NiTi wires easily react with aluminum elements under the low temperature to form inter-metallic compounds, the SiC fibers and the NiTi
alloy wires are simultaneously introduced into inter-metallic compound
layers through the vacuum
hot pressing sintering method, the SiC fibers serve as reinforcing bodies, introduction of the NiTi
alloy wires aims to remove inter-metallic compound layer center lines through the sufficient
diffusion reaction mechanism of the NiTi alloy wires and Al, and the
SiC fiber / base body interface is improved, so that the mechanical performance of a
composite material is improved.