Iurii Bilobrov
Reducing Titanium Alloys Embrittlement at All Stages of Production for use Under Proton Irradiation Conditions
Severe conditions of radiation hardening with embrittlement require that materials had plasticity reserve. During the manufacturing intricate parts is formed many vulnerable areas. Most of damage occurs in the areas with maximum brittleness. The specific requirements of nuclear industry can be met by combining of the technologies for modernization of the existing alloys, which are time-proved, and by the use of new materials both separately and in combination with the existing ones. Combining methods of mechanical reduction of grain size by Friction Stir or high temperature deformation, using TiH2 instead of titanium powder, modification by lanthanum hexaboride, chromium plating or laser cleaning of the surfaces before joining, employment of vacuum instead of inert atmosphere and post heat treatment can allow production of the alloys without trade-off of strength against plasticity.
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