scholarly journals Characterization of surface profile of shot peened cemented tungsten carbide dies with micro valleys and their lubrication performance in cold forging

2017 ◽  
Vol 207 ◽  
pp. 1135-1140 ◽  
Author(s):  
Ryo Matsumoto ◽  
Nobuhiro Kai ◽  
Yuto Tomita ◽  
Akira Kajioka ◽  
Shoji Mori ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Surface Profile ◽  
Cold Forging ◽  
Lubrication Performance ◽  
Cemented Tungsten Carbide

scholarly journals Dynamic characterization of tungsten carbide behaviour at very high strain-rates

2018 ◽  
Vol 183 ◽  
pp. 02061
Author(s):  
Benjamin Erzar ◽  
Jean-Luc Zinszner
Keyword(s):  
Tungsten Carbide ◽  
High Efficiency ◽  
High Strength ◽  
Loading Path ◽  
Dynamic Characterization ◽  
Lagrangian Analysis ◽  
The Impact ◽  
Very High ◽  
Cemented Tungsten Carbide

Cemented tungsten carbide, with its very high density and high strength, is known to be the material composing several small calibre armour piercing ammunitions. The impact of a tungsten carbide core projectile onto a high efficiency armour often leads to the fracture of the tungsten carbide core. Thus, the pertinence of material models used in numerical simulations to describe the behaviour and the damage of the target is not sufficient to well predict a ballistic impact. In this work, the GEPI high-pulsed power generator is used to conduct dynamic characterization of the behaviour of a cemented tungsten carbide under both compressive and tensile loadings. The Hugoniot Elastic Limit of this material has been identified (HEL = 5.8 GPa). Moreover, Lagrangian analysis allowed the complete loading path to be identified up to 18 GPa.

Synthesis and characterization of porous tungsten carbide with added tungsten silicides

2018 ◽  
Vol 72 ◽  
pp. 9-14
Author(s):  
Jelena Luković ◽  
Dubravka Milovanović ◽  
Ravi Kumar ◽  
Mirjana Kijevčanin ◽  
Ivona Radović ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Synthesis And Characterization ◽  
Porous Tungsten ◽  
Tungsten Silicides
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