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electromagnetics

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Published: 15 May 2022
Fig. 5 Electromagnetic spectrum. Courtesy of Nasky/Shutterstock. Royalty-free stock vector ID: 1255179580 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001429
EISBN: 978-1-62708-227-3
... cracks originated in the fillet, ran together and developed as two main crack fronts that ultimately merged into one, a typical example of a fatigue failure. Electromagnetic crack detection revealed the presence of a number of discontinuities which were located at a position that would correspond...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001798
EISBN: 978-1-62708-241-9
... Abstract The crosslinked epoxy resin encapsulant protecting an electromagnetic valve coil failed during long-term storage and was examined to determine the cause. The investigation included fault-tree analysis, FTIR and EDX spectroscopy, and differential scanning calorimetry...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001622
EISBN: 978-1-62708-222-8
... were analyzed further by Fourier transform infrared spectroscopy (FTIR). This method typically covers an analysis depth of 10 µm. It is based on the physical characteristic that most organic and some inorganic substances absorb electromagnetic radiation in the infrared (IR) region. Vibrational states...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006945
EISBN: 978-1-62708-395-9
... energy dispersive spectroscopy electromagnetic interferences epoxy ethylene propylene ethylene propylene diene rubber ethylene propylene rubber environmental stress cracking electron spin resonance essential work of fracture Food and Drug Administration nite element analysis nite element method...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
... mechanics could work. A pilot hole was drilled with a 0.476 cm (0.19 in.) drill. The drill was held in a Jacobs chuck in a portable drill press that, in turn, was held to the workpiece by an electromagnet. After the pilot hole was finished, the drill press was removed, the pilot drill was replaced by a 1.6...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... observed in the material Characterization by Eddy Current Method Eddy current testing is based on the principles of electromagnetic induction and is sensitive to the electrical conductivity and magnetic permeability of conductive materials. Eddy current evaluation technique can be applied on both...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001796
EISBN: 978-1-62708-241-9
..., ultimately leading to the complete failure of the bearing. Electrical current is induced in bearings because of a variety of reasons including electromagnetic voltages, external voltages, magnetic asymmetries, electrostatic voltages, or other causes that can result in electrical discharge. References...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
...-transmission two sides or reflection mode single side. Good sensitivity in acoustically clear material All metals and alloys, sintered carbides, glass and ceramics, rubber, structural plastics, concrete Electromagnetic testing Measures impedance of coil close to conductive material. Coil impedance changes...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001527
EISBN: 978-1-62708-224-2
... confounds most inspection methods, requiring the rope to be addressed as a whole construction. The most prevalent NDE methods are electromagnetic, magnetic flux, and magnetic flux leakage for steel ropes. These methods can detect loss of cross-sectional area caused by corrosion or degradation, and some...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003533
EISBN: 978-1-62708-180-1
... by the electron gun and focused and controlled by a series of electromagnetic lenses and coils. The resultant beam is collimated and defined by various apertures placed in the beam path. Fig. 1 Schematic showing the general layout of a typical scanning electron microscope The electron gun consists...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
... A schematic of a typical thermionic SEM column is shown in Fig. 1 . Electrons are generated by the electron gun, then are focused and controlled by a series of electromagnetic lenses and coils. The resultant beam is collimated and defined by various apertures placed in the beam path. Fig. 1 Schematic...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006931
EISBN: 978-1-62708-395-9
... polymer constituents absorb electromagnetic radiation in the IR region. Vibrational states of varying energy levels exist within the molecules. Transition from one vibrational state to another is related to the absorption or emission of electromagnetic radiation. The frequency of the radiation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... of PT method can be used. Surface roughness may also affect other NDE methods that require contact with the part such as UT, ET and MT. Material properties such as electromagnetic characteristics are also important to determine if MT and ET are potential NDE options. For example, MT is useful...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001680
EISBN: 978-1-62708-221-1
... principal modes of deterioration of a wire rope: 1) Loss of metallic area (LMA) caused by external and internal abrasion, and corrosion, and 2) localized faults (LF) such as broken wires. Electromagnetic instruments have been designed for LMA and LF testing, but have a finite spacial resolving power...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006913
EISBN: 978-1-62708-395-9
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
...-surface discontinuities and heat treatment condition. Plating and nonmetallic coating thickness measurements are also possible. Inspection depth limited to less than one inch. Requires properly trained personnel with considerable application experience Radiographic Electromagnetic rays (x-rays...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
... of electromagnetic instruments, direct current and permanent magnet method instruments, and magnetic flux leakage instruments. Chemical analysis of the individual wires does not provide significant insight, because most specifications do not require any particular composition. Most wire ropes are manufactured...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... the hammer up and down, including electromagnets and cams. Pivotal hammer test rigs overcome the contact lubrication and retuning problems encountered with ballistic rigs. However, there are problems associated with the flexure arising in the hammers, and the elastic vibrational modes of the hammers may...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... left a limited amount of space in which mechanics could work. A pilot hole was drilled with a 0.476 cm (0.19 in.) drill. The drill was held in a Jacobs chuck in a portable drill press that, in turn, was held to the workpiece by an electromagnet. After the pilot hole was finished, the drill press...