1-20 of 202 Search Results for

hysteresis methods

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 30 September 2015
Fig. 16 Wilhelmy plate method showing the effect of contact angle hysteresis for emersion and immersion. Adapted from Ref 41 More
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003310
EISBN: 978-1-62708-176-4
... materials have recently been proposed. Most notable are the normalization and hysteresis methods, which are both single specimen techniques. The normalization method does not require unloading cycles or online crack measurement and has been used successfully for metallic materials ( Ref 31 ). The method...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003233
EISBN: 978-1-62708-199-3
.... Another magnetic testing method measures Barkhausen noise. As the magnetic field strength, H, is varied at a very slow rate, discontinuous jumps in the magnetization of the material occur during certain portions of the hysteresis cycle. The jumps are associated with the sudden growth of a series...
Image
Published: 01 January 1990
Fig. 21 Plot of noncopper hysteresis loss versus noncopper current density of the full range of current and filament size for tin-core (Nb-1%Ti) 3 Sn superconductor. Modified jelly roll method was used. T c was 4.2 K, μ o H c2 of 10 T, and resistivity, ρ, of 10 −13 Ω · m. US-DPC, United More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006107
EISBN: 978-1-62708-175-7
... between microscopic and macroscopic measurement of the contact angle (θ) under conditions of (a) wetting and (b) nonwetting Fig. 15 Change of mercury-drop shape with size Fig. 16 Wilhelmy plate method showing the effect of contact angle hysteresis for emersion and immersion. Adapted...
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
... for Microstructure Characterization The physical principle behind the previously discussed magnetic methods is that the microstructural characteristics of steels, which are responsible for mechanical properties, are also responsible for its magnetic properties: shape of the hysteresis loop, coercive force...
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
... ranges for the American Society for Testing and Materials (ASTM) standard methods of particle sizing and distribution. It presents the methods used to analyze the chemical composition of cemented carbide materials in a tabular form. The article also presents information on microstructural evaluation...
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
... to the ferromagnetism of the magnet: (Eq 1) B = H + B i where H is the magnetic field strength and B i is the intrinsic induction. [1] Magnetic Hysteresis A hysteresis loop is a common method of characterizing a permanent magnet. The intrinsic induction is measured as the magnetizing field...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002469
EISBN: 978-1-62708-194-8
... temperature. It reviews the traditional methods of fatigue design on smooth and notched components. The article discusses high-cycle fatigue in terms of fatigue strength and tensile strength, mean stress effects, stress concentration, and multiaxial fatigue. It describes low-cycle fatigue in terms...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003153
EISBN: 978-1-62708-199-3
..., 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 strengths...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003160
EISBN: 978-1-62708-199-3
... that varies with each alloy system. The typical method of characterizing the transformation and naming each point in the cycle is shown in Fig. 1 (a). Most of the transformation occurs over a relatively narrow temperature range, although the beginning and end of the transformation during heating or cooling...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001100
EISBN: 978-1-62708-162-7
... them using differential scanning calorimeter (DSC) techniques as well as other methods. The article examines the most common shape memory alloys, namely, nickel-titanium and copper-base SMAs, and provides information on their respective properties. biomedical applications copper-base shape...
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
... on detection, angular dependence, and advanced analysis methods of MBN emissions. micromagnetic technique magnetic Barkhausen noise magnetoacoustic emission uniaxial stress angular-dependent strain MICROMAGNETIC TECHNIQUES take advantage of the abrupt local changes in magnetization that arise...
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 lines of magnetization due to the ferromagnetism of the magnet: (Eq 1) B = H + B i where H is the magnetic field strength and B i is the intrinsic induction. Magnetic Hysteresis A hysteresis loop is a common method of characterizing a permanent magnet. The intrinsic induction...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002364
EISBN: 978-1-62708-193-1
... effects of geometric notches Relation between remotely measured stresses and strains to stresses and strains at a notch root where plasticity dominates The methods used to analyze these factors, when combined with an adequate cycle-counting technique that accrues closed hysteresis loops...
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
... density, current density, magnetic field strength, and magnetic flux density. This article describes the behavior of the EMF by Maxwell's equations in integral or differential forms. It discusses the definition of potentials; methods of mathematical modeling; boundary conditions; and energy, power density...
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
... be as narrow as possible. Minimizing hysteresis losses is accomplished through alloying elements and by stress relieving the material ( Ref 3 ). Heat Removal in Magnetic Flux Controllers The cooling method depends on the type of magnetic flux controller used and the process environment. Power density...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002354
EISBN: 978-1-62708-193-1
... the effect of a mechanical history is considered in a separate section. Finally, in the last section, a simple method for modeling the cyclic stress-strain response is introduced. The Mechanical Stress-Strain Response Hysteresis Loop In order to obtain reproducible and unambiguous results...
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
... properties known as aging. Fig. 2 Relationship between carbon content and hysteresis loss for unalloyed iron. Induction B = 1 T (10 kG). Steel producers utilize raw materials and melting methods that provide impurity levels for those alloys guaranteed to provide a certain level of magnetic...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002350
EISBN: 978-1-62708-193-1
... technology over the past 150 to 200 years. The safe-life, infinite-life philosophy is the oldest of the approaches to fatigue. Examples of attempts to understanding fatigue by means of properties, determinations, and representations that relate to this method include August Wöhler's work on railroad...