Study of the Microstructure of Synthesized Laminates

The studies show the possibility of obtaining titanium - titanium aluminide laminates by the interaction of titanium with aluminum. An important role in the study and obtaining of such materials is assigned to the study of diffusion processes between titanium and aluminum layers, and the formation of intermetallic layers and their microstructure. In the experiments the desired laminated microstructure is obtained by all four methods. At the same time, the disadvantages inherent in each of these methods are found. Ti-Ah'I'i metal - intermetallic laminates synthesized by thermal explosion, reaction sintering with and without pressure, explosion welding with further heat treatment for powder mixtures and foils are studied using a microstructural analysis. The structure and composition of the samples are studied by X-ray diffraction, X-ray microanalysis, and metallography. The best microstructural parameters are obtained by explosion welding of a multilayer package of titanium and aluminum plates, then by sintering this package in a muffle furnace with selection of time-temperature parameters. The conducted studies can be used to obtain laminates with a desired thickness of titanium and intermetallic layers.