Evolution of Phase Composition and Microstructure upon Synthesis of Zr—Sn Alloy from Zirconium Hydride and Tin Powders

• Дата: 2015
• Автори: Savvakin, D.G., Oryshych, D.V.
• Формат: Стаття
• Мова: English
• Опубліковано: Інститут металофізики ім. Г.В. Курдюмова НАН України 2015
• Назва видання: Металлофизика и новейшие технологии
• Теми: Физика прочности и пластичности
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/111911
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Evolution of Phase Composition and Microstructure upon Synthesis of Zr—Sn Alloy from Zirconium Hydride and Tin Powders / D. G. Savvakin, D. V. Oryshych // Металлофизика и новейшие технологии. — 2015. — Т. 37, № 4. — С. 559-569. — Бібліогр.: 12 назв. — англ.

Microstructure and density evolution as well as thermal effects are investigated upon synthesis of Zr—1.5% Sn alloy from powder blends of zirconium-hydride and tin particles. Melting of tin particles at the initial stage of heating results in increased porosity, but does not accelerate chemical homogenization of powder system. Formation of solid intermetallics is accelerated at increased temperatures of 550—800°C due to hydrogen desorption and activation of zirconium matrix. Solid-state homogenization and sintering processes at higher temperatures produce homogeneous tin solution in zirconium. Particle sizes, temperature and time of sintering provide formation of low-porous (with relative density of more than 97%) chemically and microstructurally homogeneous material. Mechanical properties of fabricated alloy are at the level of properties of corresponding material produced with conventional ingot technology.