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What is Destructive Testing and Non-Destructive Testing, Why is it preferred?

         Destructive Tests

         Non-Destructive Tests

         Advanced Technology Non-Destructive Testing Services

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 Non-Destructive Tests

   Advantages of Non-Destructive Testing

As for the disadvantages of non-destructive examinations;

Why Nondestructive Testing Method ?

Non-Destructive Testing Usage Areas

The Most Common Non-Destructive Testing Methods

Visual Inspection

   Liquid Penetrant Inspection

​         Respectively;

   Magnetic Particle Inspection

   Ultrasonic Inspection

Radiographic Inspection

Eddy-Current Inspection

Eddy currents (Eddy-Current) method is a suitable method for determining surface and near-surface discontinuities (defects) and can be applied to all metals and alloys with electrical conductivity. No further preparation is required and geometrically difficult surfaces can be inspected. Using this method, it is possible to measure cracks, corrosion, paint or coating thickness on a conductive material, and conductivity measurement. Test equipments are portable, provide immediate feedback, and do not require equipment contact with the material. Eddy-current testing uses electromagnetic induction to detect problems in conductive material. There are many limitations to the test. These are only conductive material can be tested, the surface of the material must be accessible, the finish of the material may cause poor values, the depth of penetration into the material is limited by the conductivity of the material, and defects parallel to the test direction may not be detected.

Acoustic Emission

Acoustic Emission (AE) is defined as the events in which one or more local sources rapidly release energy and produce temporary elastic waves in materials under stress and the temporary elastic waves formed in this way. All solid materials have a certain elasticity; they dilatation or compress under external forces, and when the force is removed they come back like a spring. The greater the force, and thus the elastic deformation, the greater the elastic energy. If the elastic limit is exceeded, fracture or cracking may consist. This consists immediately in brittle materials and after a certain plastic deformation in other materials. If there is an defects such as cavity or inclusions in the elastically expanded material, cracks occur at these highly stressed points and loosen by a rapid dislocation, turn out the material energy. The serial release of elastic energy is called Acoustic Emission. AE produces an elastic wave, this wave propagating in the material can be analyzed with suitable sensors. Acoustic emission detects its movement, while other non-destructive testing methods detect the geometric shape of defects. Acoustic emission can perform the integrity control of the structure with a single test without regional scanning. Access to all inspection area is not required. AE is an advantageous method compared to other non-destructive testing methods, especially in applications in underground storage tanks with difficult access.

Magnetic Flux Leakage Inspection

Advanced Nondestructive Testing Services

  1.  

PHASAD ARRAY

Leek Test&Vacuum Test (LT&Vacuum Tests)

Underwater NDT Services

Underwater Thickness Measurement;

Underwater Visual Inspection

Underwater Magnetic Particle Testing

Destructive Tests

So what are these destructive tests and why are they preferred?

Tensile Test

Data Obtained by Tensile Test

From these parameter, the characteristics of the material such as Young's factor, Poisson's ratio, yield strain hardening can be obtained.

Bend Test

Charpy Impact Test

Information obtained by testing

Metallic materials under dynamic stresses;

Hardness Test

Applied Hardness Test methods

Refraction Test

Macro Analysis

Nut Strength Test

Heat Treatment

API Services

API 653 Standard

STI-SP001 Standard

The STI-SP001 standard divides the tanks into 3 categories, taking into account the following parameters. tank diameter,

Method Applied

According to the thickness measurement results taken from the tank, the calculations specified in the API report are as follows:

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