Joinability of Particulate Reinforced Alumix 231 Based Composite Materials Produced by Powder Metallurgy Route

• Дата: 2014
• Автори: Ates, H., Gokmen, U., Cinici, H., Uzun, A., Karakoc, H., Turker, M.
• Формат: Стаття
• Мова: English
• Опубліковано: Інститут металофізики ім. Г.В. Курдюмова НАН України 2014
• Назва видання: Металлофизика и новейшие технологии
• Теми: Физика прочности и пластичности
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/107029
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Joinability of Particulate Reinforced Alumix 231 Based Composite Materials Produced by Powder Metallurgy Route / H. Ates, U. Gokmen, H. Cinici, A. Uzun, H. Karakoc, M. Turker // Металлофизика и новейшие технологии. — 2014. — Т. 36, № 10. — С. 1313-1325. — Бібліогр.: 25 назв. — англ.

In the present study, weldability of Alumix 231 based composite materials reinforced with Al₂O₃ and B₄C and produced by powder metallurgy route is investigated. Various amounts of (0, 5, 10, and 15% wt.)Al₂O₃ and B₄C powders are added to the pre-alloyed Alumix 231 (Al—2.5% Cu—0.5% Mg—14% Si) powders separately and then mixed in a three-dimensional mixer for 45 min. Powders are compacted and sintered in an argon atmosphere at 640°C for 4 h. Produced blocks are welded by the Tungsten Inert Gas (TIG) welding at 25 V, 197 A and 14 l/min shielded gas flow in commercially pure argon atmosphere. Macro- and microexamination together with some mechanical properties of the welded area are studied. The results show that, although high amount of particles resulted in a decrease in the density, these composite materials can still be welded by the TIG welding method successfully.