Description
Tungsten heavy alloys (WHAs) are very popular in many industrial applications because of their high temperature, high density, and ability to shield X-ray and g-radiation. Liquid phase sintering (LPS) is the technique applied to the manufacture of these high-performance materials. Adversely, WHA alloys created by LPS undergo gravity-based shape distortion and slumping that makes shape retention difficult. Earlier research in this area focused on studying the LPS behavior of different compositions of tungsten heavy alloys. The initial and final dimensions are measured using a coordinate measuring machine and a shape profile was created. But the irregularities on the surface created problems of inaccuracy in the data obtained from CMM. This problem created a necessity of finding a solution to optimize the data by introducing the Kappa factor (a correctional factor multiplied with the measured final values) . In this research work, we are using this data in a preexisting analytical model to satisfy first and second shrinkage anisotropy factors. These samples are later sectioned along the gravitational axis, mounted, polished and their microstructure examined for changes in grain distribution and concentration of materials using a scanning electron microscope (SEM).
