NDT for Metals
On-site metallographic testing and analysis services can help you optimize the material selection, monitor real-time component conditions, and discover possible or existent damage early on, preventing costly failures and extending the life of your equipment.
Checking grade of materials (PMI)
Positive Material Identification (PMI) is the analysis of a material, this can be any material but is generally used for the analysis of metallic alloy to establish composition by reading the quantities by percentage of its constituent elements.
Ferrite Testing
The Ferrite Content in austenitic or duplex steel affects its ability to withstand heat, hostile substances, and high pressure. Chemical plants, energy utilities, and process engineering plants, for example, all require onsite measurements. The ferrite content of all of these locations can be easily detected using a variety of probes.
Ferroxyl Test – Iron Contamination Test
Ferroxyl test is used on stainless steel to detect iron contamination, including iron-tool marks, residual-iron salts from pickling solutions, iron dust, iron deposits in welds, and embedded iron or iron oxide.
Surface Roughness Test
The built-in, colour LCD display on the Mitutoyo Surface Roughness measuring instrument allows users to view surface roughness waveforms. The instrument can perform measurements in any orientation, including vertical and upside-down. Optional accessories, such as a height gauge adapter, allow for accurate measurements in a variety of situations.
Portable Hardness Test
Hardness testers such as Rockwell, Brinell, and Vickers require the test piece to be brought to the testing device, which is not always possible. Portable testing devices that allow in-situ hardness measurements have been developed, providing a quick and cost-effective alternative to traditional, stationary testing machines. There are two physical methods that are particularly well-known in the practical field and are widely used in a variety of applications.
In Site Metallography
Microstructure analysis on actual products on-site is performed using a replica metallographic technique in this test. Several grinding steps will be used to prepare the material for microstructure evaluation, with progressively higher finishes in each step, followed by either mechanical or electrolytic polishing. The final polishing step will leave the surface with a mirror finish, allowing an etchant to develop the microstructure’s characteristics.
Carbon PMI
At Sohm Analytical Services, I Pvt. Ltd., we use the Ametek Spectroport, a portable tool to test metals quickly and accurately. It identifies key elements, such as carbon and sulfur, in just 10 seconds. Easy to carry and battery-powered, it ensures reliable results for checking metal quality on the spot.
Magnetic Particle Inspection
Magnetic Particle
At Sohm Analytical Services, I Pvt. Ltd., we use Magnetic Particle Inspection (MPI) to find tiny cracks and flaws on or just below the surface of metals like iron and steel. This simple, non-destructive test involves magnetizing the metal and applying fine iron particles. If there’s a flaw, the particles gather to reveal it, making it easy to spot. MPI is quick, reliable, and perfect for ensuring the quality and safety of metal components.
Ultroson Test
At Sohm Analytical Services, I Pvt. Ltd., we use Ultrasonic Testing (UT) to detect hidden flaws inside metals and other materials. This safe, non-destructive method sends high-frequency sound waves into the material. If there’s a crack or defect, the sound waves bounce back, revealing issues. UT is fast, accurate, and ideal for ensuring the quality and safety of metal components without causing any damage.
