Abstract:
The phase transition parameters of the samples of the eutectic alloy Bi – 56.5 mass%, Pb - 43.5mass% 0.2–8 mm thick were measured at initial temperatures of 20, 60, 96 and 111$^\circ$C and a maximum shock compression stress of $\sim$4 GPa. In experiments, the structure of compression and rarefaction waves was recorded using the VISAR laser Doppler velocimeter. A decrease in the phase transition stress was revealed as the compression wave propagated through the sample, the initial and maximum transition rates were estimated and the times of the corresponding transformations were determined. The measurements of the values of the Hugoniot elastic limit and the spall strength at stresses above the phase transition stress were carried out.
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