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flux leakage inspection

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720345
EISBN: 978-1-62708-305-8
... Abstract Wrought tubular products are nondestructively inspected chiefly by eddy current techniques (including the magnetic flux leakage technique) and by ultrasonic techniques. The methods discussed in this chapter include eddy current inspection, flux leakage inspection, ultrasonic inspection...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... that it will not mask the flaws. Table 1 Applications of various methods of precleaning for liquid penetrant inspection Method Use Mechanical Abrasive tumbling Removing light scale, burrs, welding flux, braze stopoff, rust, casting mold, and core material; should not be used on...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050245
EISBN: 978-1-62708-311-9
... surfaces. Turbine blades for surface cracks or porosity; grinding cracks Magnetic particles Leakage magnetic flux caused by surface or near-surface cracks, voids, inclusions, material or geometry changes Inexpensive or moderate cost, sensitive both to surface and near- surface flaws Limited to...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... inspected only on the side where the filler metal is applied, it is quite possible that an unsatisfactory joint has been produced, even though a satisfactory fillet is evident to the inspector. Visual inspection cannot reveal internal discontinuities in a brazed joint that result from flux entrapment or...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030360
EISBN: 978-1-62708-282-2
... Abstract This chapter concentrates almost exclusively on inspection techniques related to pressure vessels and pipework. The discussion covers the general aspects associated with inspection and the key factors relevant to it. In addition, the chapter addresses processes involved in data...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... or rough surfaces Turbine blades for surface cracks or porosity; grinding cracks Magnetic particles Leakage magnetic flux caused by surface or near-surface cracks, voids, inclusions, or material or geometry changes Inexpensive or moderate cost, sensitive both to surface and near- surface flaws...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... particles Leakage magnetic flux caused by surface or near-surface cracks, voids, inclusions, or material or geometry changes Inexpensive or moderate cost, sensitive both to surface and near-surface flaws Limited to ferromagnetic material; surface preparation and post-inspection demagnetization may be...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... concentration due to weld shape and joint geometry; stress concentration due to weld imperfections; and residual welding stresses. Inspection and characterization of welds are described in the final section of this chapter. cast iron fusion welding residual stress solid-state transformation steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110587
EISBN: 978-1-62708-247-1
..., typically coming from different components, the boards itself, or the fluxes used, can make this liquid conductive. This can bridge and/or can cause electromigration of conductive species. Figure 10 Typical causes for high leakage or short failures of Al-CAP. Exposure of parts during transit...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
... Change process (such as static to scan) Coil design being used Change coil design (add flux concentrators, etc.) Source: Ref 1 Conditions occur under which all of the previous potential problems have been reviewed and have been found to be in control or in proper range during setup, but...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
...) transgranular, 200×; (b) intergranular, 300× The tendency toward SCC can be minimized by reducing residual stresses using appropriate heat treatments, or by reducing the severity of the corrosiveness of the environment. Avoiding the formation of internal deposits and high-heat-flux areas, avoiding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030338
EISBN: 978-1-62708-282-2
... characterize metal loss caused by corrosion and cracking. There are two primary types of metal-loss ILI tools: magnetic flux leakage (MFL) tools and ultrasonic tools (UT). The two forms of external SCC are associated with two distinct environments that develop at the surface of underground pipelines...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... welding is generated by an arc established between a flux-covered consumable electrode and a workpiece. The electrode tip, molten weld pool, arc, and adjacent areas of the workpiece are protected from atmospheric contamination by a gaseous shield obtained from the combustion and decomposition of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
...-dependent degradation due to corrosion usually defines scheduled and unscheduled shutdowns so that corrosion damage in piping and equipment can be inspected and/or repaired. This operational scenario can be extremely expensive. Single-incidence costs of major failures and related releases have been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940087
EISBN: 978-1-62708-302-7
... the net flux of positive ions through the interface by diffusion. Fick’s first law applied at the interface is: (Eq 3.68) J D = − D ( dC dx ) x = 0 where x is the distance from the interface into the solution, and C is the concentration of ions (mol/cm 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110323
EISBN: 978-1-62708-247-1
... a location that is approximately 100μm above the unit to direct the flux of gas toward the region of interest. This needle can be positioned so close to the sample that it actually blocks a portion of the focused ion beam from impinging upon the sample thereby reducing the area one can effectively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
... as residual welding flux and microfissures create weld metal crevices that are easily corroded, particularly in chloride-containing environments. Some flux formulations on coated shielded metal arc electrodes produce easily detached slags, and others give slags that are difficult to remove completely...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130151
EISBN: 978-1-62708-284-6
... entrapment of the liquid fluxes used during steel refining and casting must be eliminated. Refractories in contact with liquid steel must be chemically stable and resistant to corrosion and erosion. These simple principles are based on the importance of maintaining chemical equilibrium between the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
... alloys can be fusion and solid-state welded, as well as brazed. No fluxes are used when fusion or solid-state welding titanium and its alloys, but fluxes can be used in some situations for brazing. Because titanium alloy welds are commonly used in fatigue-critical applications, a stress-relief...