Open AccessPerformance Characteristics of Weld Defect Inspection by Magnetic Particle Testing
Author(s) -
Vinod Kumar,
Neeraj Kumar
Publication year - 2020
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.c8856.019320
Subject(s) - nondestructive testing , magnetic particle inspection , materials science , nozzle , welding , grinding , diamond , ferromagnetism , magnetic field , magnetism , mechanical engineering , metallurgy , magnetic nanoparticles , engineering , nanotechnology , condensed matter physics , nanoparticle , physics , quantum mechanics
The industrial product like nozzle consist of magnetic nano-particles for the Ferro fluid black plays an important role under the domain of mechanical engineering applications. In this research work, Non-Destructive Testing (NDT) technique based on deposition of a Ferro fluid Black 140CM, Grey 249 and 147-A/2 is used for the defect testing of the boiler nozzle’s surface. Magnetic Particle Testing (MPT )is one of the widely used method for Ferromagnetic material because it is fast and relatively easy to apply as compared to other NDT method. The only requirement from an inspect ability stand point is that the component being inspected must be made from ferromagnetic material (iron, nickel, cobalt or some of their alloy). This method uses magnetic field and small magnetic particles to detect flow in component & obtained defects (linear or rounded indication) of the welded part must be machined with diamond cutter grinding machine till the defects removed.