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magnetic intensity

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
..., with the workpiece then heating due to the resistance to the flow of this induced electric current. The rate of heating of the workpiece depends on the frequency of the induced current, the intensity of the induced current, the specific heat of the material, the magnetic permeability of the material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110111
EISBN: 978-1-62708-247-1
... points in opposite directions on each side of the wire, as seen in Fig. 1 and the intensity of the magnetic field also varies with the distance from the wire. If we use a magnetic sensor to detect the field generated by the current at different locations above the wire, we can generate a magnetic image...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050057
EISBN: 978-1-62708-311-9
... include: The frequency selected The magnetic flux field intensity The geometry of the coil and part to be heated The aggressive nature of the applied quenchant The temperature to which the part will be heated How the material is to be installed The brittleness of the selected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
...(π a ) 1/2 may be viewed as the driving force required for crack propagation to occur. It is considered common practice to define this term as the stress intensity factor, K , such that: (Eq 7.10) K = σ ( π a ) 1 / 2 Crack propagation occurs when the stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140201
EISBN: 978-1-62708-264-8
... electromagnetic radiation. It consists of combined alternating electric and magnetic fields that give rise to the name electromagnetic. Light rays are thought of as waves propagating in a particular direction (at the speed of light, or 186,000 mile/s) and having electrical field intensities that vary, as shown...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... stress concentration weld defects welded joints FUSION WELDING is the joining of two or more pieces of material by melting a portion of each and allowing the liquefied portions to solidify together. One distinguishing feature of all fusion welding processes is the intensity of the heat source used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... of the visible spectrum depends on the intensity of ultraviolet light at the workpiece surface. The usefulness of magnetic particle inspection in the search for discontinuities or imperfections depends on exactly what types of discontinuities the method is capable of finding. Of importance are the size...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050317
EISBN: 978-1-62708-311-9
... Abstract This appendix provides practical information on induction coils and how they are made. It discusses soldering methods, preferred materials, design challenges, and best practices and procedures. It also discusses the design, construction, and application of magnetic flux concentrators...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720393
EISBN: 978-1-62708-305-8
... evaluation methods to flaw detection in P/M parts. The nondestructive evaluation methods covered are mechanical proof testing, metallography, liquid penetrant crack detection, filtered particle crack detection, magnetic particle crack inspection, direct current resistivity testing, x-ray radiography...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... testing methods discussed are liquid penetrant inspection, magnetic particle inspection, eddy current inspection, radiographic inspection, and ultrasonic testing. chemical analysis coordinate measuring machines hardness testing machine vision metallography nondestructive testing tensile...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.9781627082815
EISBN: 978-1-62708-281-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910475
EISBN: 978-1-62708-250-1
... to difficult and may require experience. Specialized equipment required Nondestructive evaluation B.1 Magnetic susceptibility Application (contact or close proximity) of a permanent magnet to a material/sample/ structure Degree of ferromagnetism or ferrimagnetism, either qualitatively (by simple...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000131
EISBN: 978-1-62708-312-6
... oersted (Oe) in cgs units. In other words, a field H of 1 Oe exerts a force of 1 dyne on a unit pole. By analogy, the magnetic field created by a unit pole has an intensity of 1 Oe at a distance of 1 cm from the pole. This field decreases with the inverse square of the distance from the pole...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110413
EISBN: 978-1-62708-247-1
..., especially in dark field or phase contrast Sample Damage May damage active devices Non-destructive The SEM consists of an electron column, a sample stage, and one or more detectors, see Fig. 1 . The electron column will have an electron source, a series of magnetic and electrostatic lenses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130521
EISBN: 978-1-62708-284-6
... Table A1.1 Base, supplementary, and derived SI units Measure Unit Symbol Base units Amount of substance mole mol Electric current ampere A Length meter m Luminous intensity candela cd Mass kilogram kg Thermodynamic temperature kelvin K Time...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240303
EISBN: 978-1-62708-251-8
... the intensity of magnetization, or simply the magnetization ( M ). Therefore: (Eq 17.20) B = μ o H + μ o M = μ o ( H + M ) where μ o is the permeability of free space and is equal to 4π × 10 −7 tesla · meters per ampere. However, for ferromagnetic materials, the magnetization μ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500301
EISBN: 978-1-62708-317-1
... member of the transformer is called the core and is made of magnetically permeable material. This core is free to move axially inside the transformer. The primary winding is energized by an alternating current. The magnetic flux resulting from this alternating current is coupled by the core...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220085
EISBN: 978-1-62708-259-4
... of the sample where the electron beam impinged, and may originate from a significantly larger volume than would be preferred. All electron microscopes (transmission and scanning) have in common some basic features: a source, which is able to generate an electron beam with energy and intensity compatible...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290251
EISBN: 978-1-62708-319-5
... that of current silicon solar cells. This is a very active field with enormous impact on energy shifts to renewable forms. Other ideas built along these same lines seek to employ anisotropic structures to improve properties in magnets, sensors, conductors, and actuators. Surface carburization for hardening...