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Author: Ivan Perfilyev

Metallography and Heat Treatment of Metal

The isolation of the excess phase from the supersaturated solid solution (Part 1).

Posted on July 24, 2017 by Ivan Perfilyev / 0 Comment

The metals in the solid state can only dissolve other metals and nonmetals. As the pressure and temperature change, the solubility changes, this leads to the se...

To become an Inspection Engineer

The amount of metal evaporating from the cathode spot (Part 1).

Posted on July 21, 2017 by Ivan Perfilyev / 0 Comment

When welding with the direct polarity, the dimensions of the anode spot determine the width of the weld. At the same time, at the given current and voltage, on ...

Metallography and Heat Treatment of Metal

The crystals shape (Part 1).

Posted on July 19, 2017 by Ivan Perfilyev / 0 Comment

The shape formed in the melt of the crystals depends on the growth conditions (overheating and supercooling liquid heat removal direction, and other impurities)...

Metallography and Heat Treatment of Metal

The polymorphic transformations in alloys (Part 4).

Posted on July 17, 2017 by Ivan Perfilyev / 0 Comment

The polymorphic transformations in alloys lying outside the eutectoid (KML) and peritectoid (MKL) lines do not differ from the one considered earlier (see Fig. ...

To become an Inspection Engineer

The metal crystallization.

Posted on July 10, 2017 by Ivan Perfilyev / 0 Comment

The changing external conditions, we can get one of the three aggregate states. For the metal that does not experience allotropic transformations, that is, it e...

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