The microanalysis of metals.
The microanalysis is often used for the reason establishment of the various details destruction during operation. The microscopic analysis consists in a researc...
Author: Ivan Perfilyev
Impact toughness testing (Part 1).
From the moment of emergence of interest in viscosity of metals numerous and various test methods have been developed for measurement of this major property. Sp...
The polymorphic transformations in metals (Part 6).
Like a normal polymorphic transformation, the shear transition begins heterogeneously. The germs appear, apparently, in places where there are corresponding dis...
Welder Qualification Test (Part 7).
The sequence of actions for the welder’s certification is included below: The main parameters definition; The check of suitability of the equipment and material...
The current density distribution, temperature and gas flow velocity in the real welding arc (Part 3).
The similar phenomenon shall be watched also in case of drop metal transfer, but in a little smaller level. At the same time, it is necessary to consider that t...