Method of manufacturing zirconium alloy tubular products

Method of manufacturing zirconium alloy tubular products containing (wt. %): niobium-0.9-1.7; iron-0.04-0.10; oxygen-0.03-0.10; silicon-less than 0.02, carbon-less than 0.02, and zirconium-as the base of the alloy. This includes an ingot melting by multiple vacuum arc remelting, mechanical processin...

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Hauptverfasser:	Chineikin, Sergei Vladimirovich, Sablin, Mihail Nikolaevich, Filatova, Nadezhda Konstantinovna, Ozhmegov, Kirill Vladimirovich, Markelov, Vladimir Andreevich, Novikov, Vladimir Vladimirovich, Nikulina, Antonina Vasilevna, Kabanov, Aleksandr Anatolevich, Solovev, Vadim Nikolaevich, Ziganshin, Aleksandr Gusmanovich, Lozitckii, Sergei Vasilevich
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	Method of manufacturing zirconium alloy tubular products containing (wt. %): niobium-0.9-1.7; iron-0.04-0.10; oxygen-0.03-0.10; silicon-less than 0.02, carbon-less than 0.02, and zirconium-as the base of the alloy. This includes an ingot melting by multiple vacuum arc remelting, mechanical processing of the ingot, heating, hot working of the ingot, subsequent mechanical processing for the production of tubular billets, heat treatment of the tubular billets, application of a protective coating and heating to a hot pressing temperature, hot pressing, removal of the protective coating, multi-stage cold radial forging, vacuum thermal treatment, multiple cold rolling runs with a total deformation degree of 50-80-% per run and a tubular coefficient of Q=1.0-2.7 with intermediate vacuum thermal treatment after each cold rolling operation, and final vacuum thermal treatment of the resulting tubular products carried out at the final size with subsequent final finishing operations.