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low-frequency vibration method

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... never be used, because they can contaminate the internal surfaces of the delamination, making subsequent repair more difficult or impossible. Although tap testing is normally classified as a sonic test method, actually a low-frequency vibration method, it will be discussed here since...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720267
EISBN: 978-1-62708-305-8
... frequency produce good resolution, which is the ability to separate echoes from closely spaced defects. Ultrasonics of low frequency penetrate deeper into materials because attenuation is generally lower. However, backscattering “noise” from grain boundaries is usually more important than attenuation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240303
EISBN: 978-1-62708-251-8
..., both the electronic specific heat and electrical resistance are low. Conductivity also depends on the degree to which the electrons are scattered by the ions of the metal that are thermally vibrating, and on impurity atoms or other defects present in the metal. Insulators can also be modified...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
...-frequency, low-amplitude vibrations, often in combination with bending fatigue stress states ( Ref 17 ). The combined action of fretting and reversing bending stress causes accelerated crack initiation and an increase in the rate of crack propagation. The result is a decrease in the fatigue strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... separate crystals, a transmitter and a receiver, or have only one, which is used alternately as transmitter and receiver. The ultrasonic method is characterized by high sensitivity and very deep penetration, but in addition to its surface limitations, its production speed is relatively low. A liquid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230267
EISBN: 978-1-62708-298-3
... of Beryllium Powder Forging ,” Report RD 63-l05, Wyman Gordon Co. , Worcester, MA Pinto N.P. , 1979a . Communication and Consolidation , Beryllium Science and Technology , Vol 2 , Floyd D.R. and Lowe J.N. , Ed., Plenum Press, NY , p 13 – 29 10.1007/978-1-4757-0668-0_2...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780343
EISBN: 978-1-62708-281-5
... ; molecular weight distribution, MWD Polymer MWD with soluble polymers Low-angle light scattering M ¯ w , MWD M ¯ w for homopolymers, interactions polymer/solvent Osmometry, membrane Number-average molecular weight, M ¯ n M...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
... cause nonconformance than those that appear during production, because it identifies some of the preexisting conditions that can cause the nonconformances. The conditions that can cause nonconformance are discussed in the order of inspection frequency of occurrence. Low hardness probably is one...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110563
EISBN: 978-1-62708-247-1
.... , “ Low temperature wafer bonding for MEMS processes and 3D integration ”, 2012 3rd IEEE Int'l Workshop on Low Temperature Bonding for 3D integration , Tokyo , 2012 . 10.1109/LTB-3D.2012.6238097 [9] Hartzell A.L. , DaSilva M.G. , Shea H.R. , MEMS Reliability , Springer ( New...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610461
EISBN: 978-1-62708-303-4
... grooves. Affected areas are usually free of deposits and corrosion products, although corrosion products can sometimes be found if erosion-corrosion occurs intermittently and/or the liquid flow rate is relatively low. Most metals are susceptible to erosion-corrosion under specific conditions. Metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870085
EISBN: 978-1-62708-299-0
... that are moving much more slowly. Almost all the work done on this subject has been in connection with just two major problems: “moisture erosion” of low-pressure steam turbine blades operating with wet steam, and “rain erosion” of aircraft or missile surfaces and helicopter rotors. Wet steam erosion-corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290137
EISBN: 978-1-62708-306-5
... welding patterns. Truss core, sinusoidal, egg-crate, and other internal stiffening geometries can be produced in a single forming step using automated welding patterns. Low forming pressures and single-step processing significantly reduce tooling costs compared with conventional methods. Fig. 6.4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... designing with ultra-modern packages. Below are some of the critical things to consider when designing: Avoid packages with small tolerance of thermomechanical relaxation and low robustness against vibrations. Micro lead frame (MLF)/(quad flat no-lead) QFN should not be used in automotive applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630189
EISBN: 978-1-62708-270-9
... on the coolant side. Cavitation pitting is characterized by mechanical-induced damage from cyclical stresses (fatigue), sometimes aggravated by corrosion. The damage occurs in low-pressure regions where a rapid pressure drop creates a rapidly vibrating liquid-metal interface. Cavitation pitting fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110244
EISBN: 978-1-62708-247-1
... capabilities and ease-of-use. Examples of which include enhanced detector arrangements (e.g. integrated high- and low-frequency modules), resolution improvements (both spatial and temporal), and user-friendly software environments. This has provided a vehicle for the FA analyst to efficiently and accurately...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050293
EISBN: 978-1-62708-311-9
... Individual line overheating in power supply or heat station Clogged water line Clean. Check for proper filtering and resistivity Low pressure out of filter Clogged filter Clean or replace High return pressure (reduces flow through power supply) Return water line clogged Clean Return water line...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... are complex multichambered assemblies. Several different frequencies of electric power are used in induction hardening. Low frequencies induce heat deeper within the metal in the coil. High frequencies have a very shallow heating effect. The commonly used 9600 Hz power induces heat to a depth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060001
EISBN: 978-1-62708-343-0
... at the individual atom level. The vibrational activity of each atom can be significantly different from its siblings. This variation gives rise to a few atoms jumping at a relatively low statistically average temperature. Similarly, it gives rise to a few atoms not jumping, even at very high temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
... than ⅔ of tooth height Phase I power requirements Low frequency 1176 kW High frequency 784 kW Phase II power requirements Low frequency 480 kW High frequency 170 kW Source: Ref 6 Fig. 10.18 Shaft with changes in diameter. (a) A single-shot coil vertically heats...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... soft, low-carbon-steel shaft bearing component. Abrasive wear was intentionally created using a hand file. Fig. 1 Idealized representations of the two types of force applications on abrasive wear particles: (a) Cutting or plowing action of a contained particle under pressure...