Electromagnetic testing emt-mft chapter 9b

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Keywords: The direction of the field should be perpendicular to the largest flaw dimension to maximize the effect of the flaw on the leakage field. Charlie Chong/ Fion Zhang
It is possible to generate a magnetic field in a specimen either directly or indirectly. In direct magnetization, current is passed directly through the part. With the indirect approach, magnetization is induced by placing the part in a magnetic field that is generated by an adjacent current conductor or permanent magnet. This can be done, for example, by threading a conductor through a hollow part such as a tube or by passing an electric current through a cable wound around the part. Methods of magnetizing a part both directly and indirectly are illustrated schematically in Fig. 2. Charlie Chong/ Fion Zhang
Page 1 and 2: Electromagnetic Testing MFLT/ ECT/
Page 3 and 4: Ship building Charlie Chong/ Fion Z
Page 5 and 6: Offshore Structures & Appurtenances
Page 13 and 14: Power Piping Charlie Chong/ Fion Zh
Page 15 and 16: Charlie Chong/ Fion Zhang
Page 17 and 18: Fion Zhang at Shanghai 2015 Februar
Page 19 and 20: Chapter 9B: Magnetic Field Testing
Page 21 and 22: Keywords: Field of magnetic materia
Page 23 and 24: Although it is conceivable that lea
Page 25 and 26: Barkhausen noise: Magnetization (J)
Page 27 and 28: Barkhausen noise A coil of wire wou
Page 29 and 30: A set-up for non-destructive testin
Page 31 and 32: Magnetic Dipole Charlie Chong/ Fion
Page 33 and 34: If a slot is cut in the rod, as ill
Page 35: 2.2 Experimental Techniques. One of
Page 39 and 40: The flaw leakage field can be detec
Page 41 and 42: Fig. 3 Flux leakage measurement usi
Page 43 and 44: Unlike the inductive coil, which pr
Page 45 and 46: There are, however, many situations
Page 47 and 48: Fig. 5 Dependence of magnetic signa
Page 49 and 50: Fig. 6 Characterization of a ferrit
Page 51 and 52: PART 2. Principles of Magnetic Char
Page 53 and 54: Hysteresis Curves Charlie Chong/ Fi
Page 55 and 56: Nevertheless, the prospect of nonde
Page 57 and 58: Curie temperature Below T c Ferroma
Page 59 and 60: Paramagnetism The magnetic moments
Page 61 and 62: Antiferromagnetism The magnetic mom
Page 63 and 64: Fig. 7 Experimental arrangement for
Page 65 and 66: The review articles and conference
Page 67 and 68: Leakage field sensors are mounted b
Page 69 and 70: In addition to systems for inspecti
Page 71 and 72: The flux leakage method is also fin
Page 73 and 74: Another area in which the flux leak
Page 75 and 76: Finally, the flux leakage method ha
Page 77 and 78: Steel rebars and cables in a large
Page 79 and 80: Fig. 10 Effect of mechanical hardne
Page 81 and 82: Keywords: • For one alloy, AISI 4
Page 83 and 84: Offshore Structures Charlie Chong/
Page 85 and 86: VLCC Charlie Chong/ Fion Zhang
Page 87 and 88:
Offshore Structures Charlie Chong/
Page 89 and 90:
Pipeline & Piping Charlie Chong/ Fi
Page 91 and 92:
Charlie Chong/ Fion Zhang
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Electromagnetic testing emt-mft chapter 9b

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