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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003234
EISBN: 978-1-62708-199-3
... and nonferromagnetic metals and metal parts. Giving a brief introduction on the uses of eddy-current inspection, this article discusses the operating principles and the principal operating variables encountered in eddy-current inspection, including coil impedance, electrical conductivity, magnetic permeability, lift...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003234
EISBN: 978-1-62708-199-3
... permeability, lift-off and fill factors, edge effect, and skin effect. It further describes different aspects of eddy current testing such as the selection of inspection frequencies and the types and configurations of inspection coils. The article also deals with the eddy current instrumentation...
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
..., and specific heat. It describes the two important electromagnetic properties, electrical resistivity (electrical conductivity) and magnetic permeability, which posses the most pronounced effect on the performance of the induction heating system, its efficiency, and selection of main design parameters...
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
... General effect of some alloying elements on magnetic properties of cast iron Table 20 General effect of some alloying elements on magnetic properties of cast iron Property C Si Mn Ni Cu Cr Magnetic induction − … − … … − Permeability − + − − − − Coercive force...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006450
EISBN: 978-1-62708-190-0
... parts. This article discusses the advantages and limitations of eddy-current inspection, as well as the development of the eddy-current inspection process. It reviews the principal operating variables encountered in eddy-current inspection: coil impedance, electrical conductivity, magnetic permeability...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006467
EISBN: 978-1-62708-190-0
..., of steel bars are also described. The article provides a discussion on electromagnetic systems, eddy-current systems, and magnetic permeability systems for detection of flaws on steel bars. It concludes with a description of nondestructive inspection of steel billets. References References 1...
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 Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003414
EISBN: 978-1-62708-195-5
... $$ $ $$ $ $$$ $$$ (a) P/T, pressure/temperature Permeability of reinforcements, flow layers, and tubes Table 3 Permeability of reinforcements, flow layers, and tubes Material Permeability, 10 –9 m 2 Glass reinforcement Multiaxial 0.05–0.30 Woven roving 0.05–0.30 Random mat 1–4...
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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003153
EISBN: 978-1-62708-199-3
... annealed (b) H Grain-oriented electrical steel Fully processed 1.7 17 Parallel grain Epstein Stress-relief annealed (b) P Grain-oriented electrical steel, high permeability Fully processed 1.7 17 Parallel grain Epstein Stress-relief annealed (b) Note: Refer to ASTM standards...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006134
EISBN: 978-1-62708-175-7
... Applications , Proceedings of the 1985 PM Conference , Metal Powder Industries Federation , 1985 , p 653 – 667 15. “Permeable Sintered Metal Materials–Determination of Density, Oil Content, and Open Porosity,” ISO Standard 2738, International Standards Organization , 1987 16. “Standard Test...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005879
EISBN: 978-1-62708-167-2
... in the article “Thermal Problem Solution” in this Volume). The material properties applied in the electromagnetic field (EMF) calculations are the electrical conductivity (γ), which depends on the temperature of the heated body; the magnetic permeability (μ), which depends not only on the temperature but also...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006298
EISBN: 978-1-62708-179-5
... 3 Thermophysical properties of tested furan-bonded silica sand molds Thermophysical property Symbol Value Density, kg/m 3 ρ m 1400 Specific heat, J/kg · K c p 1150 Thermal conductivity, W/m · K k 0.70 Permeability coefficient, N · s/m 4 k D 1.0 × 10 −7...
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
... induction coil design with laminate shunts and a Fluxtrol-designed coil with soft-magnetic composite controller with top and bottom shunts. Source: Ref 14 Fig. 2 Effect of magnetic permeability on coil current (a) and efficiency (b); curves generated from computer simulation of heating a flat...
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
... Hysteresis loops and differential magnetic permeabilities as a function of magnetic field for (1) the core (non-heat-treated steels with 0.4% C material), (2) the case (same steel after induction heat treatment), and (3) a double-layer specimen consisting of both materials Fig. 3 Direct current...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001400
EISBN: 978-1-62708-173-3
... materials, that is, materials with large magnetic permeability values (e.g., iron, low-carbon steels, nickel, etc.). Permeability being the same, materials with higher electrical resistivity heat more efficiently than low-resistivity materials. Therefore, heating efficiency is optimized by joints having...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005525
EISBN: 978-1-62708-197-9
.... , Numerical Study of the Combined Effects of Microsegregation, Mushy Zone Permeability and Flow, Caused by Volume Contraction and Thermosolutal Convection, on Macrosegregation and Eutectic Formation in Binary Alloy Solidification , Int. J. Heat Mass Transf. , Vol 38 , 1995 , p 3455 – 3473 7. Ni...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003413
EISBN: 978-1-62708-195-5
... pressure Moderate High Mixing Static Impingement Materials Polyester/epoxies Urethanes Processing speeds Slow/moderate High Investment required Low High Fig. 5 Injection-compression molding. Initial stand-off enables rapid injection due to increased permeability. The final...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005254
EISBN: 978-1-62708-187-0
... areas, but foam permeability has emerged as a most significant variable. Even more important has been the effect of bead packing on casting quality. The Lost Foam Consortium of the University of Alabama—Birmingham with funding support from the U.S. Department of Energy, has shown that by vibrating...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005119
EISBN: 978-1-62708-186-3
... 7.85 High magnetic saturation; magnetic properties may not be guaranteed; intermittent-duty small motors Nonoriented silicon steels M47 1.05 7.80 Ductile, good stamping properties, good permeability at high inductions; small motors, ballasts, relays M45 1.85 7.75 Good stamping...