The heterogeneous nucleation.
If there are impurities in the liquid phase in the form of solid particles, then the crystallization often begins on them, as on finished substrates. The role o...
Category: Metallography and Heat Treatment of Metal
Dispersion hardening (aging) (Part 1).
The release of the excess phase from the supersaturated solution at the low temperatures leads to the increase in the strength and hardness of the alloy. This i...
The crystals shape (Part 2).
The accelerated growth of protruding dendrites (shoots) is due to several reasons. First, it can be associated with the features of packing atoms and placing de...
The metallographical tests.
The various metallographic tests are another way to obtain information about the properties of the metal or weld. These tests are essentially in the excision an...
The crystalline structures.
In the solid metal the atoms are aligned in even lines, rows and layers, forming three-dimensional crystalline structures. By definition, the metals have the cr...