Effects of Cobalt on the Sintering Behavior of Mechanically Activated Tungsten Powder

Tungsten alloys were prepared with mechanically activated powder added microelement cobalt in order to im- prove the process and properties of alloys. Properties of alloys such as density, hardness and bending strength were me- asured. The results show that through mechanical activation, cobalt can accelerate the sintering process of these alloys. By the combination of mechanical activation and adding microelement cobalt, tungsten alloys with higher density and better properties can be obtained.