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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003229
EISBN: 978-1-62708-199-3
... through acoustic method and bubble testing. The article gives a short note on types of leak detectors, sulfur hexafluoride detectors and mass-spectrometer. It tabulates the pressure and vacuum system leak-testing methods and discusses the application of gas detectors in leak testing. acoustic method...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006384
EISBN: 978-1-62708-192-4
... spherical bubbles when collapsing ( Ref 24 , 25 , 26 ). Laboratory Testing Methods Several types of laboratory devices have been developed to evaluate the resistance to cavitation erosion of materials such as rotating disks, vibratory devices, cavitating liquid jets, and high-speed cavitation...
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
..., pore size distribution, maximum pore size (by bubble-point test, explained below), permeability, mechanical properties, and corrosion resistance ( Ref 8 , 10 , 13 ). However, the unique characteristics of porous PM materials and the limited availability of design engineering data often result...
Book Chapter

By David V. Neff
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005353
EISBN: 978-1-62708-187-0
... containing the same amount of gas. (a) Pressure of 7 kPa (55 torr) results in surface shrinkage. (b) At 6.5 kPa (50 torr), a single bubble forms. (c) Boiling and porosity occur at 6 kPa (45 torr). Fig. 13 Schematic of the reduced-pressure test apparatus used to assess amounts of dissolved gas...
Image
Published: 01 August 2013
Fig. 94 Illustration of the effect of water content on visual appearance of bubble formation in the crackle test. Courtesy of Noria Corporation More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... cavitation test. Courtesy of CETIM Attenuation Stage The decrease of erosion rate during this period depends on many factors, such as materials properties, interactions between liquid flow and worn surface by an accommodation process. Residual air or gas bubbles in the deep craters also can act...
Image
Published: 01 December 2008
Fig. 15 Effect of pressure on the appearance of copper alloy reduced-pressure test samples containing the same amount of gas. (a) Pressure of 7 kPa (55 torr) results in surface shrinkage. (b) At 6.5 kPa (50 torr), a single bubble forms. (c) Boiling and porosity occur at 6 kPa (45 torr). More
Image
Published: 01 December 2008
Fig. 12 Effect of pressure on the appearance of copper alloy reduced-pressure test samples containing the same amount of gas. (a) Pressure of 7 kPa (55 torr) results in surface shrinkage. (b) At 6.5 kPa (50 torr), a single bubble forms. (c) Boiling and porosity occur at 6 kPa (45 torr). More
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001036
EISBN: 978-1-62708-161-0
... observations have indicated that thermal neutrons can also cause irradiation effects. Therefore, material damage from neutron irradiation is important not only in fast reactors, such as the experimental Fast Flux Test Facility (FFTF) in Hanford, Washington, and the Super Phenix fast-breeder electric power...
Image
Published: 01 January 1987
Fig. 81 Effect of severe hydrogen attack on the fatigue fracture appearance of an ASTM 533B pressure vessel steel. The severely charged material was tested at room temperature at a stress intensity range of Δ K = 20 MPa m (18 ksi in. ), a load ratio of R = 0.1, and a cyclic More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005277
EISBN: 978-1-62708-187-0
... Abstract This article provides a discussion on ten rules for the effective production of reliable castings. These rules include good-quality melt, liquid front damage, liquid front stop, bubble damage, core blows, shrinkage damage, convection damage, segregation, residual stress, and location...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006303
EISBN: 978-1-62708-179-5
..., the reader is referred to Ref 1 . General Conditions for the Filling System Layout During the filling of the mold, the main target of the filling system design is to keep air bubbles and oxide films out of the liquid metal. This is achieved by preventing air bubbles and bifilms from entering...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006528
EISBN: 978-1-62708-207-5
... coating thickness is an important aspect of quality. Excessively thick coatings are undesirable, because they are susceptible to mechanical damage. Extremely thin coatings are also undesirable. Porcelain enamels normally contain some very minute discontinuities in the form of entrapped gas bubbles. When...
Series: ASM Handbook
Volume: 4F
Publisher: ASM International
Published: 01 February 2024
DOI: 10.31399/asm.hb.v4F.a0007001
EISBN: 978-1-62708-450-5
... the Leidenforst temperature, the vapor blanket collapses, and the nucleate boiling process begins ( Ref 6 ). Stage B, nucleate boiling : With the collapse of the vapor blanket, the liquid of the cooling medium reaches the hot metal surface and evaporates immediately, forming bubbles. The contact between...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005935
EISBN: 978-1-62708-166-5
... of the cooling process of the workpiece and the spreading velocity of the wetting front depend on several physical properties of the specimen and the quenching medium. The departure of steam bubbles from the surface is a function of their size, which produces sound phenomena in the liquid...
Series: ASM Handbook
Volume: 4F
Publisher: ASM International
Published: 01 February 2024
DOI: 10.31399/asm.hb.v4F.a0006999
EISBN: 978-1-62708-450-5
... and the quenching medium. The departure of steam bubbles from the surface is a function of their size, which produces sound phenomena in the liquid. These are strongest at the transition between film boiling and nucleate boiling of the quenching medium. This means that the boiling noise produced during...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003279
EISBN: 978-1-62708-176-4
... Abstract This article discusses the tests designed specifically to evaluate the adhesion, friction, and wear behavior of various material systems. It tabulates the characteristics of common types of wear and mechanical surface damage. The article also considers the displaying and analyzing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003542
EISBN: 978-1-62708-180-1
... strength and failure of test specimens and manufactured parts is identifying the cause of fracture, that is, the fracture origin. Cracks, pores, bubbles, inclusions, and grain boundaries are all discontinuities that serve as stress concentrators in glasses and/or ceramics and can, therefore, be fracture...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000609
EISBN: 978-1-62708-181-8
... : SEM, 50×. Fig. 574 : SEM, 850×. Fig. 575 : SEM, 13,000× (D.W. Moon and E.A. Metzbower, Naval Research Laboratory) Fig. 573 Fig. 574 Fig. 575 Fig. 576, 577 Intentional fracture by overpressurization of ASTM A508, class 2, pressure vessel. The intermediate test vessel (ITV...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004129
EISBN: 978-1-62708-184-9
... with bubble pack wrapped around them and heat sealed in 0.13 mm (5 mils) polyethylene to a 100% humidity test for one month reproduced the corrosion problem. The testing included using pink polyethylene used for antistatic packaging purposes, and the results showed severe corrosion where the antistatic...