Studying of the contact formation patterns in metal powder materials based on the results of precision mechanical testing

Abstract

This work is aimed to study the contact formation into titanium powder at the different manufacturing stages with a use of four-point bending. The effect of technological and structural parameters on the contact evolution is analyzed. It is shown that contact formation into packed powders occurs in two stages: at the first stage the plane pour overgrowths, it is accompanied by diffusion-driven growth of contact. At the second stage the volume sintering takes place. At this stage the relative size of contact increases more for high pores materials then for materials with lower pore concentration. Full text download