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|Title:||Effect of composition on the high rate dynamic behaviour of tungsten heavy alloys||Authors:||Latif, Kesemen
Kaan, Çalışkan N.
Emrah, Konokman H.
|Keywords:||[No Keywords]||Issue Date:||2015||Publisher:||E D P Sciences||Source:||11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading (DYMAT) -- SEP 07-11, 2015 -- Lugano, SWITZERLAND||Series/Report no.:||EPJ Web of Conferences||Abstract:||Tungsten heavy alloys are currently used as kinetic energy penetrators in military applications due to their high density and superior mechanical properties. In the literature, quasi-static properties of different tungsten heavy alloys based on W-Ni-Cu and W-Ni-Fe ternary systems are well documented and presented. However, comparison of the dynamic behaviour of these alloys in terms of the correlation between quasi-static mechanical characterization and dynamical properties is lacking. In the present study, dynamic properties of tungsten heavy alloys having different binder phase compositions (90W-7Ni-3Cu and 90W-8Ni-2Fe) at different projectile velocities were investigated. The examined and tested alloys were produced through the conventional powder metallurgy route of mixing, cold compaction and sintering. Mechanical characterization of these alloys was performed. In the ballistic tests, cylindrical tungsten heavy alloys with L/D ratio of 3 were impacted to hardened steel target at different projectile velocities. After the ballistic tests, deformation characteristics of test specimens during dynamic loading were evaluated by comparing the change of length and diameter of the specimens versus kinetic energy densities. The study concluded that 90W-8Ni-2Fe alloy has better perforation characteristics than 90W-7Ni-3Cu alloy.||URI:||https://doi.org/10.1051/epjconf/20159402017
|Appears in Collections:||Makine Mühendisliği Bölümü / Department of Mechanical Engineering|
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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