Magnetic particle inspection (MPI) is a nondestructive testing process where a magnetic field is used for detecting surface, and shallow subsurface, discontinuities in ferromagnetic materials. Examples of ferromagnetic materials include iron , nickel , cobalt , and some of their alloys .

Magnetic Particle Inspection (MPI) stands as a crucial nondestructive testing process utilized to detect surface and shallow subsurface discontinuities in ferromagnetic materials. These materials encompass iron, nickel, cobalt, and certain alloys susceptible to magnetization.

Magnetic Particle Inspection (MPI) is a very effective method for location of surface breaking and slight sub-surface defects such as cracking, pores, cold lap, lack of sidewall fusion in welds etc in magnetic materials.

Acceptance criteria for Magnetic Particle Test (MPI/MPT/MT) (This article covers the weld defect acceptance criteria as per ASME Section VIII Div 1, which is one of the most widely used standards for acceptance criteria for weld defects)

Magnetic Particle Inspection (MPI) is one of the most widely used non-destructive inspection methods for locating surface or near-surface defects or flaws in ferromagnetic materials. MPI is basically a combination of two NDT methods: Visual inspection and magnetic flux leakage testing.

2020年12月18日 · The Magnetic Particle Test (MT Test) is used for magnetizable materials (E.g. Iron, Carbon Steel & low-alloy steel). Magnetic Particle Test or MT and Magnetic Particle Inspection or MPI are the same NDT Method. MPI detection sensitivity (to find the flaws) is usually significantly higher compared with the dye penetrant test (DPT or PT).

2019年11月13日 · Magnetic Particle Testing (MT) (also known as magnetic particle inspection – MPI) is a non destructive test (NDT) method, used to detect surface or subsurface (near to surface) discontinuities. This NDT method can be used on …

Magnetic Particle Inspection (MPI) is an NDT method that employs magnetic fields and magnetic particles to detect surface and near-surface discontinuities in ferromagnetic materials. Crack formations. Detects surface and near-surface cracks caused by stress, fatigue, or welding processes. Seams.

Welding Inspections: MPI is commonly used to inspect welds in industries such as construction, oil and gas, power generation, and automotive. It helps detect surface and near-surface defects in welds, such as cracks, lack of fusion, undercutting, and porosity.

Liquid penetrant (LPI) and magnetic particle (MPI) inspection techniques are methods that supplement visual inspection, revealing defects such as fine cracks or micro-porosity that would be invisible or difficult to detect by the naked eye. LPI is a simple, cheap and easily portable inspection method that requires no equipment apart from spray ...