Conventional NDT Disciplines

Conventional NDT Disciplines

Inspect equipment without permanently altering it.

Verify the Integrity of Your Assets

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Machined parts and industrial structures can be complex systems that experience extreme loads and fatigue during their lifetime. Non-destructive evaluation (NDE), or non-destructive testing (NDT), enables the inspection of these components without permanently altering the equipment. It is a highly valuable technique that is often used to validate the integrity of materials, detect instabilities, discover performance outside of tolerances, identify failed components, or highlight an inadequate control system.

Conventional non-destructive testing is often the starting point in establishing or evaluating the condition of the equipment. It is comprised of a number of different testing methods, most of which rely on either sound or electromagnetic waves to examine materials. TEAM offers a wide array of conventional NDT applications for turnaround and on-stream inspection activities.

Current Testing

Detect Discontinuities within the Internal Structure of Assets and Welds

Conventional RT is a nondestructive examination (NDE) method that uses X-ray and gamma ray for detecting internal imperfections, measuring wall thickness and detection of corrosion. With RT, the material is exposed to a homogenous ray from a radioactive isotope or an X-ray tube while a negative film is positioned behind the material to be examined. After development of the film, thickness and density differences (material imperfections) will show as blackness. Acceptance criteria define whether or not the indication is non-acceptable (a defect or flaw). RT is often used to inspect machinery, such as pressure vessels and valves, to detect for flaws. RT is also used to inspect weld repairs.

Testing to Validate Asset Integrity Based on a Reference Code or Standard

Ultrasonic Testing (UT) uses high frequency ultrasonic waves to detect surface breaking and internal imperfections, measure material thickness and determine acceptance or rejection of a test object based on a reference code or standard. UT is completely nondestructive. The test piece does not have to be cut, sectioned, or exposed to damaging chemicals. Access to only one side is required.

A wide variety of cracks, voids, disbonds, inclusions, and similar problems that affect structural integrity can all be located and measured with UT methods. Test results are highly repeatable and reliable. The minimum detectable flaw size in a given application will depend on the type of material being tested and the type of flaw under consideration.

Detecting Surface and Slightly Subsurface Discontinuities in Ferroelectric Materials

Magnetic Particle Inspection (MPI) is a non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferroelectric materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the test object. When the part is magnetized, flaws perpendicular to the magnetic field direction cause flux leakage. If a lapse or a crack is present the magnetic particles will be attracted to the flawed area, providing our TEAM technician with what is called an indication. Our technician will then evaluate the indication to assess the location, size, shape and extent of these imperfections.

Detect Surface Discontinuities in Both Ferromagnetic and Non-ferromagnetic Materials

Liquid Penetrant Inspection is one of the most widely used NDE/ NDT methods. It’s popularity can be attributed to two main factors: its relative ease of use and its flexibility. Liquid Penetrant Inspection can be used to inspect almost any material.

TEAM utilizes Liquid Penetrant Inspection to detect surface discontinuities in both ferromagnetic and non-ferromagnetic materials. In castings and forgings, these may be cracks or leaks in new products or fatigue cracks in in-service components. We perform the test using visible red dyes under visible light conditions or fluorescent dyes under ultraviolet light. As the name implies, the dyes penetrate into the surface discontinuities by capillary action. After the excess material is removed from the material being tested, indications will appear. Evaluation and classification of material is based on code or customer requirements.

Accurately Identify the Composition of More than 100 Different Engineering Alloys Onsite

Positive Material Identification (PMI) quickly and accurately identifies the composition of more than 100 different engineering alloys onsite. TEAM can perform PMI on virtually any size or shape of pipe, plate, weld, welding materials, machined parts or castings. We perform both x-ray fluorescence (XRF) and Optical Emission Spectroscopy (OES), two methods of conducting a PMI examination. Both methods ensure compliance with Process Safety Management (PSM) requirements.

Detect Damage and Defects in Critical Equipment

Visual Inspection, or Visual Testing (VT), is the process of looking over a piece of equipment using the naked eye of a trained technician to look for flaws. It can be used for internal and external surface inspection of a variety of equipment types, including storage tanks, pressure vessels, piping, and other equipment.

Visual inspection is simple and less technologically advanced compared to other methods. Despite this, it still has several advantages over more high-tech methods. It is cost effective and is also one of the most reliable techniques. A well-trained inspector can detect most signs of damage.

Detect Discontinuities within the Internal Structure of Assets and Welds

Conventional RT is a nondestructive examination (NDE) method that uses X-ray and gamma ray for detecting internal imperfections, measuring wall thickness and detection of corrosion. With RT, the material is exposed to a homogenous ray from a radioactive isotope or an X-ray tube while a negative film is positioned behind the material to be examined. After development of the film, thickness and density differences (material imperfections) will show as blackness. Acceptance criteria define whether or not the indication is non-acceptable (a defect or flaw). RT is often used to inspect machinery, such as pressure vessels and valves, to detect for flaws. RT is also used to inspect weld repairs.

Testing to Validate Asset Integrity Based on a Reference Code or Standard

Ultrasonic Testing (UT) uses high frequency ultrasonic waves to detect surface breaking and internal imperfections, measure material thickness and determine acceptance or rejection of a test object based on a reference code or standard. UT is completely nondestructive. The test piece does not have to be cut, sectioned, or exposed to damaging chemicals. Access to only one side is required.

A wide variety of cracks, voids, disbonds, inclusions, and similar problems that affect structural integrity can all be located and measured with UT methods. Test results are highly repeatable and reliable. The minimum detectable flaw size in a given application will depend on the type of material being tested and the type of flaw under consideration.

Detecting Surface and Slightly Subsurface Discontinuities in Ferroelectric Materials

Magnetic Particle Inspection (MPI) is a non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferroelectric materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the test object. When the part is magnetized, flaws perpendicular to the magnetic field direction cause flux leakage. If a lapse or a crack is present the magnetic particles will be attracted to the flawed area, providing our TEAM technician with what is called an indication. Our technician will then evaluate the indication to assess the location, size, shape and extent of these imperfections.

Detect Surface Discontinuities in Both Ferromagnetic and Non-ferromagnetic Materials

Liquid Penetrant Inspection is one of the most widely used NDE/ NDT methods. It’s popularity can be attributed to two main factors: its relative ease of use and its flexibility. Liquid Penetrant Inspection can be used to inspect almost any material.

TEAM utilizes Liquid Penetrant Inspection to detect surface discontinuities in both ferromagnetic and non-ferromagnetic materials. In castings and forgings, these may be cracks or leaks in new products or fatigue cracks in in-service components. We perform the test using visible red dyes under visible light conditions or fluorescent dyes under ultraviolet light. As the name implies, the dyes penetrate into the surface discontinuities by capillary action. After the excess material is removed from the material being tested, indications will appear. Evaluation and classification of material is based on code or customer requirements.

Accurately Identify the Composition of More than 100 Different Engineering Alloys Onsite

Positive Material Identification (PMI) quickly and accurately identifies the composition of more than 100 different engineering alloys onsite. TEAM can perform PMI on virtually any size or shape of pipe, plate, weld, welding materials, machined parts or castings. We perform both x-ray fluorescence (XRF) and Optical Emission Spectroscopy (OES), two methods of conducting a PMI examination. Both methods ensure compliance with Process Safety Management (PSM) requirements.

Detect Damage and Defects in Critical Equipment

Visual Inspection, or Visual Testing (VT), is the process of looking over a piece of equipment using the naked eye of a trained technician to look for flaws. It can be used for internal and external surface inspection of a variety of equipment types, including storage tanks, pressure vessels, piping, and other equipment.

Visual inspection is simple and less technologically advanced compared to other methods. Despite this, it still has several advantages over more high-tech methods. It is cost effective and is also one of the most reliable techniques. A well-trained inspector can detect most signs of damage.

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