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continuous emissions

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003237
EISBN: 978-1-62708-199-3
... Abstract Acoustic-emission inspection detects and analyzes minute acoustic-emission signals generated by discontinuities in materials under applied stress. This article discusses the types of acoustic emissions (continuous-type emissions and burst-type emissions) and applications, including...
Image
Published: 01 January 2006
Fig. 22 (a) X dislocation sources per unit volume emit dislocations over a radius L . Continued emission (and hence strain) requires that the outermost dislocations in each loop be annihilated by climb processes between nearby loops separated by the distance h . (b) A two-dimensional view More
Image
Published: 01 January 2005
Fig. 22 (a) X dislocation sources per unit volume emit dislocations over a radius L . Continued emission (and hence strain) requires that the outermost dislocations in each loop be annihilated by climb processes between nearby loops separated by the distance h . (b) A two-dimensional view More
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006454
EISBN: 978-1-62708-190-0
... is continually being addressed, making previously impractical projects feasible. Acoustic Emission Waves and Propagation The primitive wave released at the AE source is illustrated in Fig. 2 . Rapid movement is necessary if a significant amount of the elastic energy liberated during deformation...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005197
EISBN: 978-1-62708-187-0
... in cupola equipment, including preheated air blast, recuperative hot blast systems, and duplex electric holders. It discusses the shell, intermittent or continuous tapping, tuyere and blower systems, refractory lining, water-cooled cupolas, emission-control systems, and storage and handling of the charge...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005853
EISBN: 978-1-62708-167-2
... in the surface, thus no change in the emissivity. When the temperature is increased so that the metal melts, then there is a change in emissivity. If the shiny metal is heated in the atmosphere at approximately 350 °C (650 °F) it will oxidize and that is a surface change. If the metal continues to be heated...
Image
Published: 01 August 2018
Fig. 3 Angular dependence of acoustic emission radiated by formation of a tensile microcrack in the plane parallel to the y -axis. Continuous line: P-wave; dotted line: S-wave More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003050
EISBN: 978-1-62708-200-6
... generated from product dust, sand coatings, or combustion products are also classified as HAPs. A number of continuous monitoring devices are available for measuring this type of emission. All must be calibrated with EPA method 5, in which the operator extracts a gas sample from the stack and collects...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001728
EISBN: 978-1-62708-178-8
.... Excitation of the remaining bound electrons yields a new term system and a new set of lines. Ionization and excitation may continue until an atom is completely stripped of its electrons. In practical emission sources, ionization rarely proceeds beyond removal of two electrons, and in most cases, only...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006640
EISBN: 978-1-62708-213-6
..., generally yield the most intense emission. The energy of the excited electron increases with decreasing spacing between excited states until it reaches an ionization limit. At this point, the electron is no longer bound to the atom and may assume a continuous range of energies. Such unbound electrons may...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005908
EISBN: 978-1-62708-167-2
... Abstract Induction processes for melting and heating of metals belong to the high-energy-consuming industrial processes, and continuous improvement of energy efficiency of competitive melting and heating technologies is of increasing interest. This article discusses the energy demand of various...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006400
EISBN: 978-1-62708-192-4
... analysis, acoustic emission testing, temperature monitoring, motor current signature analysis, and ultrasound emission. The article describes the evolution of condition-based maintenance in CM. It also describes the basics of integrated vehicle health management, a capability that enables a number...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004153
EISBN: 978-1-62708-184-9
... and continuing through the 1990s. During the latter period, restrictions on emissions of nitrogen oxides (NO x ) were also established. These restrictions and others dealing with toxic metals and particulates continue to be adjusted as environmental conditions dictate. In recent years, other countries with coal...
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Published: 01 January 2005
dewpoint of the exhaust gas. Typically, the damage occurs in areas that are most prone to condensation and evaporation cycles; insulation once wet can serve to sustain attack. Control: Automotive exhaust system designs continue to improve as engine sizes and performances improve and emissions are more More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003472
EISBN: 978-1-62708-195-5
... Abstract This article focuses on the techniques used in recycling of aluminum metal matrix composites (MMCs) such as discontinuous SiC reinforced aluminum MMCs and continuous reinforced aluminum MMCs. It provides a discussion on the properties of recycled aluminum MMCs and disposal of aluminum...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
... a high vacuum to be maintained in the gun area while samples are being inserted or removed. Separate pumps (such as titanium ion-getter pumps) attached to the gun continue to operate while the sample chamber is vented to atmosphere. These features are standard for field-emission and LaB 6 guns