Partially open cell Ti-6Al-2Co ternary alloy foams with a range of size and volume fraction of spacer particle

Abstract

Partially open cell Ti-6Al-2Co alloys foams of varying cell (pore) size (0 to 500 µm) and volume fraction (40 to 70%) are made by varying the space-holder size (SHS) and volume fraction. The increase of space-holder (spacer) size increased the cell size and cell-wall thicknesses, which led to increased plateau stress, energy absorbed (Toughness), hardness and Young’s modulus. Further, increased spacer content and decrease of strain rate; reduced the strength, toughness, and modulus of Ti6Al2Co ternary alloy foams. The corrosion rate was found to be decreasing with increase of particle size of space-holder Also, the corrosion rate and weight loss percent increases with increase in cell volume fraction. Further, the Ti6Al2Co alloy foam’s mechanical properties were found to have a trend of power-law relations with relative densities.