Abstract
The process of consolidation of nanocrystalline W and clad W-(15-50%)Cu composition powders, as well as jacketing of conventional heavy alloys by steel in hot conditions under shock wave loading, was studied. The temperature of loading was in the range 20-1200°C and intensity of loading was up to 10 GPa. As investigation showed, the application of high temperatures and consolidation of W and W-Cu composition powders in two stages (first at room temperatures and second, in hot conditions) enables the powders to be compacted to near theoretical densities with high value of hardness. The value of densityand hardness depends on treatment temperature and the content of Cu in composition. The investigation of joining processes and jacketing of W-Ni-Feheavy alloys (WHA) by steel showed that, depending on the loading temperature, it is possible to achieve the jacketing by steel with the formation of an intermediate layer upon the whole length of the WHA. The structure of the intermediate layer, as well its properties, depend on the value of the loading temperature.
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