| Abstract: | For the first time in the production of construction beryllium an integrated technology for the production of a new generation
of high-purity isotropic materials has been developed and mastered. The technology combines processes of vacuum distillation
of the metal, gas flow atomization of a melt, specialized processing of the powder prior to densification and hot isostatic
pressing. A technology for the production of spherical powders of beryllium and beryllium-based alloys by atomization of a
melt is also developed and employed for the first time. A technology is developed and optimal conditions of isostatic pressing
of spherical powders are determined. Isotropic beryllium with high physico-mechanical characteristics is obtained. The properties
of the materials thus obtained are studied. The strength of the new materials is 20%, and their plasticity two to three times
greater, than commercial beryllium. It is shown that the high purity of the initial powder, the cellular structure, uniform
distribution, and dispersity of the particles of beryllium oxide and segregations of secondary phases are the principal factors
that govern the level of the properties of compact beryllium materials.
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Translated from Poroshkaya Metallurgiya,Nos. 3–4(448), pp. 118–125, March—April, 2006. |
