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Author: Ivan Perfilyev

To become an Inspection Engineer

The self-regulatory mechanism of the arc column form (Part 1).

Posted on June 7, 2017 by Ivan Perfilyev / 0 Comment

It is well known, that the arc column has the shape of the truncated cone, the larger base of which is on the product regardless of polarity. However, the reaso...

Metallography and Heat Treatment of Metal

The metal structure basis (Part 1).

Posted on June 5, 2017 by Ivan Perfilyev / 0 Comment

In order to understand the metallurgical properties of the metals, first of all, it is necessary to describe some properties of particles that form all types of...

Metallography and Heat Treatment of Metal

The polymorphic transformations in alloys (Part 1).

Posted on June 2, 2017 by Ivan Perfilyev / 0 Comment

The impurities are important in the polymorphous transformations. The nature of the influence of impurities is related to their solubility in the metal. If the ...

To become an Inspection Engineer

The non-existence of defects monitoring in the weld seams (Part 1).

Posted on May 31, 2017 by Ivan Perfilyev / 0 Comment

This test group is designed to assess the quality of the metal structure and the non-existence of defects in it. The non-existence of defects monitoring is usua...

Inspection of Welded Seams

The dependence of atoms ionization energy on the plasma temperature (Part 2).

Posted on May 29, 2017 by Ivan Perfilyev / 0 Comment

The value of Wи for each atom cannot be precisely calculated. However, if we assume that the quantity Wи and depends linearly on T, then its value can be calcul...

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