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vibration-induced heating

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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006444
EISBN: 978-1-62708-190-0
... Abstract Vibrothermography, also known as sonic thermography, sonic infrared (IR), thermosonics, and vibroacoustic thermography, is a nondestructive evaluation (NDE) technique for finding cracks and delaminations through vibration-induced heating. This article describes the four parts of the...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005840
EISBN: 978-1-62708-167-2
... forging coils. bars billets brazing electrical insulation induction coils induction heating preventive maintenance refractory selection slabs vibration method wear INDUCTION HEATING has been used for many applications in which metallic parts are heated to elevated temperatures. The...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005516
EISBN: 978-1-62708-197-9
... of some commonly used metals are shown in Fig. 16 ( Ref 8 , 34 , 35 , 36 ). Fig. 16 Specific heat capacity of some commonly used metals vs. temperature. Source: Ref 1 Equation 7 allows the estimation of the kilowatts required to be induced by induction coil within the heated...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001279
EISBN: 978-1-62708-170-2
... resistance, specific mechanical or electrical properties, appearance or color needs, cleanability, heat resistance, or thermal shock capability. Porcelain enamels for sheet steel and cast iron are classified as either ground-coat or cover-coat enamels. Ground...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005619
EISBN: 978-1-62708-174-0
... ultrasonic welding with an emphasis on governing equations, material behavior, and heat generation of the process. It discusses the resulting factors, namely, vibration, friction, temperature, and plastic deformation as well as the bonding strength and its mechanism. bonding strength faying surface...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... point, and, in the case of a mining rope, can cause jolting when this part of the cable passes onto the winding drum. In steam generators and heat exchangers, flow-induced vibration results in fretting between the tubes and the supports or baffles through which they pass. In the past, this...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... processing design must prevent levitation when it occurs. Electrical conducting materials used in construction of the fixture should be kept away from the heating field, and stray, induced currents should be avoided in drives, bearings, and moving parts. Bearings and moving parts that are under the...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... service performance, but are often overlooked in specifications and inspection procedures. Drawing, heat treating, and straightening operations determine the level of residual hoop and bending stresses induced in the tube. By varying the severity of these operations, it is possible to produce tubes with...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005819
EISBN: 978-1-62708-165-8
... Abstract The heat treatment of steel is based on the physical metallurgical principles that relate to its processing, properties, and structure. The microstructures that result from the heat treatment of steel are composed of one or more phases in which the atoms of iron, carbon, and other...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005942
EISBN: 978-1-62708-168-9
... Abstract Gray irons are a group of cast irons that form flake graphite during solidification, in contrast to the spheroidal graphite morphology of ductile irons. The heat treatment of gray irons can considerably alter the matrix microstructure with little or no effect on the size and shape of...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006321
EISBN: 978-1-62708-179-5
... Abstract Gray irons are a group of cast irons that form flake graphite during solidification, in contrast to the spheroidal graphite morphology of ductile irons. This article describes surface hardening of gray irons by flame and induction heating. It provides information on the classification...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005945
EISBN: 978-1-62708-168-9
... Abstract This article introduces the general principles and applications of heat treatment to iron castings. It provides a detailed discussion on the heat treatment processes, namely, stress relieving, annealing, normalizing, throughhardening, and surface hardening for various types of cast...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006250
EISBN: 978-1-62708-169-6
... site in a solid material. The vibrating atom may switch positions with a neighboring atom in the lattice, or an atom may even move into neighboring vacancy sites or defect areas. This movement of atoms is referred to as diffusion, and heat treatment increases the rate of atomic diffusion. The rate of...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006296
EISBN: 978-1-62708-179-5
... Abstract Cast irons, like steels, are iron-carbon alloys but with higher carbon levels than steels to take advantage of eutectic solidification in the binary iron-carbon system. This article introduces the solid-state heat treatment of iron castings and describes the various processes of heat...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001444
EISBN: 978-1-62708-173-3
... Abstract Electron-beam welding (EBW) can produce deep, narrow, and almost parallel-sided welds with low total heat input and relatively narrow heat-affected zones in a wide variety of common and exotic metals. This article discusses the joint configurations and shrinkage stresses encountered in...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006510
EISBN: 978-1-62708-207-5
... Abstract Weldability is a function of three major factors: base material quality, welding process, and design. This article focuses on base-metal weldability of aluminum alloys in terms of mechanical property degradation in both the weld region and heat-affected zone, weld porosity, and...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004155
EISBN: 978-1-62708-184-9
... frequency), and by over 15 flow-induced blade excitation mechanisms during normal operation that include: Synchronous resonance of the blades at a harmonic of the unit running speed Nonuniform flows Blade vibration induced from a vibrating rotor or disc Self-excitation, such as flutter...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005865
EISBN: 978-1-62708-167-2
... electrical resistance of the contact area. These factors can cause the electrical resistance of transitional areas between contact surfaces to continuously change during coil operation, resulting in poor reliability and potential variation in the power induced within the heated part. Heat treaters often...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005824
EISBN: 978-1-62708-165-8
... characterization using hardening-power and cooling-power tests. The article discusses the fundamentals involved in heat-transfer coefficient and heat flux of quenching processes. This discussion is followed by various actual examples of applications of these methods using simplified equations. Quenchant evaluation...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003478
EISBN: 978-1-62708-195-5
... heat loads so that it does not induce loads that wear the joints that attach the chips to the electronic board. Therefore, the thermal plane material must have high thermal conductivity as well as low thermal expansion. In addition, high stiffness material results in less vibration transmitted to the...