Tahribatsız Muayene

VISUAL INSPECTION (VT)

Visual inspection is a basic inspection method but remains a critical step in the inspection of any asset, from equipment to structures. Visual inspection can be carried out on a range of assets, including equipment and structures such as: - Tanks - Pressure vessels - Piping In the hands of inspectors with the appropriate skills, the benefits of visual inspection will reveal crucial information and provide a better understanding in the following areas: - The presence of significant defects, including welding defects, cracks, and corrosion. - The compliance of welds and other components with specifications. - Evidence indicating the causes of unexpected events such as failures. - The condition of the asset and, when applicable, its functionality and remaining lifespan. At Asteel Ndt, visual inspection is conducted by our qualified material scientists, tank inspectors (API), welding inspectors, and pressure vessel and classified facility inspectors (AICIP and API), along with our engineers. Our material scientists, inspectors, and engineers are highly experienced and equipped with effective visual inspection tools, aids, and access solutions to maximize the value of all visual inspections. Asteel Ndt inspection teams use RDVI equipment, which includes: - High-resolution borescopes - Telescopic access poles equipped with high-resolution video cameras - Tracked vehicles and crawlers with the capability to traverse most terrains - Remote-controlled Aerial Vehicles/ Drones/UAVs operated by CASA-certified, qualified inspection personnel - Divers or submerged cameras and crawlers

MAGNETIC PARTICLE TESTING (MT)

Magnetic Particle Testing has a strong capability in detecting discontinuities in ferromagnetic materials. Magnetic Particle Testing is a non-destructive testing technique that identifies surface and near-surface discontinuities in ferromagnetic materials. It involves examining cracks and welds using magnetic particles that are attracted to surface flaws by a magnetic field. The inspection process takes advantage of the fact that magnetically sensitive materials are drawn to magnetic fields. Magnetic Particle Testing can be used to detect a variety of surface and near-surface discontinuities. It can be performed on raw materials, finished products, or semi-finished materials, such as: - Cast, rolled, and forged products - Billets - Welds - In-service assembled or disassembled products

Advantages: - It is a reliable and highly accurate testing method. - Relatively fast and simple. - There are very few restrictions on the size and shape of the inspected asset. - Setup costs are minimal. - It does not require the stringent cleaning needed for Penetrant Testing since defects can still be detected even if contamination occurs.

ULTRASONIC TESTING (UT)

Ultrasonic testing is a well-established and highly adaptable technology that uses high-frequency sound waves for inspection. The methods vary from basic manual testing to fully automated testing. Ultrasonic testing has excellent capabilities to determine the following: - Component thickness - Detection and sizing of cracks, even in complex component geometries - Evaluation of the extent of corrosion and corrosion loss - Detection of welding, casting, and manufacturing defects, and assessment of welds for compliance with relevant standards Asteel Ndt's team of subject matter experts can help you determine the best approach for your application. Advantages: - Detects surface and subsurface defects - Superior penetration depth compared to other testing methods - The pulse-echo technique allows for one-sided access - High accuracy in predicting discontinuity size and shape - Minimum sample preparation required - Instant results obtained using electronic equipment - Detailed images can be obtained with automated systems

PENETRANT TESTING (PT)

Penetrant testing is a non-destructive testing method used to detect surface-breaking discontinuities such as cracks, porosity, pipes, seams, forging laps, and fusion defects, but not limited to these. It is suitable for use on a wide range of non-porous materials, including metals, ceramics, and plastics. However, porous or excessively rough materials are generally not suitable for penetrant testing. Penetrant testing is carried out by applying a penetrant liquid to the surface of the test specimen. This liquid is drawn into any surface-breaking discontinuities through capillary action. After a suitable time, excess penetrant is removed from the inspection surface, and a fine developer powder is applied. The developer draws the remaining penetrant out of the discontinuities on the surface, providing a visual indication of the location of the discontinuity.

Advantages; Penetrant testing is an incredibly capable, highly accurate, and non-destructive method for detecting even the finest defects and smallest surface discontinuities. It also has the ability to inspect small objects, even if they are irregular in shape, making them suitable for batch testing for better efficiency. Discontinuities detectable by penetrant testing include: - Rolled products: cracks, seams, and surface laminations. - Castings: cold shuts, hot tears, porosity, air pockets, and shrinkage defects. - Forged parts: cracks, laps, and surface bursts. - Welds: cracks, surface porosity, undercut, overlap, fusion lack if open to the surface, and penetration lack if tested by root. Since contamination does not prevent detection, the penetrant testing method does not require the stringent cleaning needed for some other methods.

TRADITIONAL & ADVANCED ULTRASONIC TESTING (PHASED ARRAY & TOFD)

Ultrasonic testing with the TOFD (Time of Flight Diffraction) method is one of the most reliable methods, especially for detecting surface and volumetric defects. It is frequently used in the inspection of critical weld connections. In "Phased Array" ultrasonic testing, compared to the classical ultrasonic testing method, the entire volume of the material with complex geometry can be inspected in 3D from a fixed point, and visual reporting can be done. Thanks to this method, today, materials with complex geometries, flanges, welds, nozzles, turbine blades, rails, and many other components are inspected with the most accurate method at low cost and high quality.

RADIOGRAPHIC TESTING (RT)

Industrial Radiography is a widely used non-destructive technique that uses ionizing radiation to reveal defects that are not otherwise visible in materials and structures. Industrial Radiography is typically used to detect: - Material defects such as cracks, weld defects, and voids; - Material loss due to corrosion or erosion in pipes; - The presence of internal blockages in pipe systems. Radiography uses various radioactive sources depending on the inspection requirements and materials being examined. Strict procedures for the handling and transportation of sources are essential for the safety of operators and the general public.

Advantages of Radiography:

- No calibration is required in the field, - It is an excellent method for detecting internal discontinuities, - The direction of the radiation beam is not affected by the geometry of the part.

Menu

Our Services

Design © 2024 ASTEEL NDT. All Rights Reserved.

Privacy Policy Contact