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hysteresis loss

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Published: 01 August 2013
Fig. 8 Hysteresis losses from varying magnetic field. Source: Ref 5 More
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006324
EISBN: 978-1-62708-179-5
... properties of cast iron in terms of magnetic intensity, magnetic induction, magnetic permeability, remanent magnetism, coercive force, and hysteresis loss. It concludes with a discussion on the acoustic properties of cast iron. acoustic properties cast iron chemical composition coercive force...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001109
EISBN: 978-1-62708-162-7
... parameters of superconductivity. It discusses the magnetic properties of selected superconductors and types of stabilization, including cryogenic stability, adiabatic stability, and dynamic stability. The article also focuses on alternating current losses in superconductors, including hysteresis loss...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006057
EISBN: 978-1-62708-175-7
...Abstract Abstract Powder metallurgy (PM) techniques are effective in making magnetically soft components for use in magnetic part applications. This article provides an account of the factors affecting magnetism, permeability, and hysteresis losses. It includes information on the magnetic...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003153
EISBN: 978-1-62708-199-3
..., transformers, magnetic shielding, and so on. Important characteristics of magnetically soft materials include: (a) high permeability, (b) high saturation induction, (c) low hysteresis-energy loss, (d) low eddy-current loss in alternating flux applications, and (e) constant permeability at low field...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005896
EISBN: 978-1-62708-167-2
...-demagnetization alternating current cycles generate heat as the loss of energy due to internal friction between molecules. This effect is known as the magnetic hysteresis loss , which is proportional to the area of the hysteresis loop and applied frequency. Magnetic hysteresis losses are particularly important...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003154
EISBN: 978-1-62708-199-3
..., and ceramics. This article discusses the composition, properties, and applications of permanent magnetic materials, such as hysteresis alloys used in motors. It primarily focuses on the stability of magnetic fields that influences reversible and irreversible losses in magnetization with time, and the choice...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001094
EISBN: 978-1-62708-162-7
..., hysteresis alloys used in motors. Permanent magnet materials include a variety of alloys, intermetallics, and ceramics. Commonly included are certain steels, Alnico, Cunife, iron-cobalt alloys containing vanadium or molybdenum, platinum-cobalt, hard ferrites, and rare-earth alloys. Each type of magnet...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005846
EISBN: 978-1-62708-167-2
... rings use the eddy-current reaction field, the primary ways to reduce losses is to use low-resistivity materials and increase the length of the shielding face. Soft-magnetic materials are heated by eddy currents, heat from thermal sources, hysteresis losses, and sometimes by conductive heat transfer...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001093
EISBN: 978-1-62708-162-7
..., magnetic shielding, and so on. Important characteristics of magnetically soft materials also include: High permeability High saturation induction Low hysteresis-energy loss Low eddy-current loss in alternating flux applications In specialized cases, constant permeability at low field...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005877
EISBN: 978-1-62708-167-2
... greater than the hysteresis losses. However, in some cases—especially for low-temperature induction heating—the amount of heat released as a result of hysteresis losses could be distinctly higher and, in order to avoid errors, it should be taken into account. The equations in a similar form to Eq 34...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005324
EISBN: 978-1-62708-187-0
... A 536-grade ductile irons is shown in Fig. 9 . Fig. 9 Strength and ductility versus hardness ranges for A 356 standard-grade ductile irons The loss of strength and ductility in heavier sections can be minimized by using an alloyed iron having a bainitic matrix ( Ref 17 ). The tensile...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005857
EISBN: 978-1-62708-167-2
..., remanence magnetization, hysteresis loss, permeability, micromagnetic parameters, and other characteristics of the hysteresis loop. Among the three microstructures produced during heat treatment (pearlite, bainite, and martensite), the pearlite microstructure has the smallest coercivity, smallest...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001003
EISBN: 978-1-62708-161-0
... max 0.002 max 0.005–0.20 (b) 0.03–0.06 (a) TC, total carbon. (b) Optional The formation of graphite during solidification causes an attendant increase in volume, which can counteract the loss in volume due to the liquid-to-solid phase change in the metallic constituent. Ductile...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006442
EISBN: 978-1-62708-190-0
... calculation is to express the total loss as the sum of hysteresis loss and bulk eddy current losses. However, this approach assumes a scalar permeability for the specimen and therefore ignores the influence of domain wall dynamics and inhomogeneous distribution of permeability on energy loss. Consequently...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005761
EISBN: 978-1-62708-165-8
... as a result of both eddy-current losses and hysteresis losses. The latter are no longer present once the ferromagnetic property of steels is eliminated. Such a consideration is very important with regard to the austenitizing of steels in the hardening operation, since this is done above the Curie temperature...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006056
EISBN: 978-1-62708-175-7
... are added to powder blends, typically in the range of 0.2 to 3% by weight, to facilitate compaction processes. Therefore, quality systems rely on analytical methods to quantify the organic content of powder blends. Sintered weight loss is a simple method used to quantify mass loss during sintering...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006397
EISBN: 978-1-62708-192-4
... at the same time. If the material were ideally elastic, there would be no energy loss, and the rolling friction would be zero ( Ref 34 ). In reality, the deformation has some anelastic hysteresis, and the corresponding energy loss is dissipated within the solids at a depth corresponding to the maximum shear...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005885
EISBN: 978-1-62708-167-2
... for steel, which is ferromagnetic, occurs as a result of eddy current and hysteresis losses. On heating, steel undergoes a change from ferromagnetic to paramagnetic at the Curie temperature—approximately 768 °C (1414 °F) for iron-carbon alloys below ∼0.45 wt% C, equivalent to the Ac 1 temperature; 727 °C...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003661
EISBN: 978-1-62708-182-5
... 100, and electrochemical noise measurements. The visual examination, metallographic examination, and nondestructive inspection of pits are discussed. The article reviews the procedures for the use of standard charts, metal penetration, statistical analysis, and loss in mechanical properties...