Browse 30 free articles, standards and practical guides about Magnetic Particle Testing.
30 articles in this topic
TYPES OF MAGNETIC MATERIALS All materials are affected by magnetic fields. Matter is made up of atoms with a positively charged nucleus surrounded by…
Read articleLONGITUDINAL MAGNETIZATION TYPES Electrical current can be used to create a longitudinal magnetic field in magnetic materials. When electric current is passed through a…
Read articleCircular magnetization is a non-destructive testing technique commonly used to detect surface and near-surface defects in ferromagnetic materials. It involves inducing a magnetic field…
Read articleAny factor that affects the formation of indications at a discontinuity affects the sensitivity of magnetic particle testing. Two of the most important of…
Read articleWHAT IS CIRCULAR MAGNETIZATION Circular magnetization is used for the detection of radial discontinuities around edges of holes or openings in test objects. It…
Read articleField Direction The proper orientation of the magnetic field in the test object in relation to the direction of the discontinuity is a more…
Read articleThe residual method is a method of testing in which magnetic particles are applied to test objects after the test objects have been magnetized.…
Read articleThe continuous method implies that the magnetizing force is acting while the magnetic particles are applied. When the current is on, maximum flux density…
Read articleThe advantage of greater sensitivity for the continuous method is simple and basic. When the magnetizing force is applied to a ferromagnetic test object,…
Read articleTwo methods of processing are used in magnetic particle testing. The method to use in a given case depends on the magnetic retentivity of…
Read articleThe particles used in magnetic particle testing are made of ferromagnetic materials, usually combinations of iron and iron oxides, having a high permeability and…
Read articleDirect Current Direct current, on the other hand, magnetizes the entire cross section more or less uniformly in the case of longitudinal magnetization, and…
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