1-20 of 336 Search Results for

alternating current

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030023
EISBN: 978-1-62708-282-2
... is carrying a low resistivity fluid and is also buried, corrosion can occur on both the internal and external surface of the pipeline. Stray currents are usually thought of as being dc currents. However, severe damage can be also caused by alternating currents (ac). Alternating currents are...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... burning of finished parts and surfaces at the points of electrical contact is possible if care is not exercised Experience and skill in interpreting the significance of magnetic particle indications is necessary Both direct and alternating currents are suitable to magnetize...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870075
EISBN: 978-1-62708-299-0
... ) solution and zinc amalgam to the sectioned surface at the circled area (right of center). 0.33× Stray-current corrosion, or stray-current electrolysis, is different from natural corrosion because it is caused by an externally induced electrical current (alternating, ac, or direct current, dc) and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... electric stove is an example of heating due to the resistance to the flow of the 60 Hz household electric current. In a similar manner, the heat produced in a part in an induction coil is due to the electrical current circulating in the part. Induction heaters are used to provide alternating electric...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110285
EISBN: 978-1-62708-247-1
... probe transistor characterization, two probe transistor characterization, and probing and characterizing metallization issues. The imaging techniques discussed are those that are specific to atomic force nanoprober or scanning electron microscope based tools. They are current contrast imaging, scanning...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110244
EISBN: 978-1-62708-247-1
... probing This article discusses the state-of-the-art in commercially available Laser Voltage Probing (LVP) technology for the purpose of integrated-circuit failure analysis. An overview of LVP history, theory, system architecture, and application extensions will be reviewed. Current limitations and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... possible contrast to the surface being inspected should be used. The type of magnetizing current used depends on whether there are surface or subsurface discontinuities. Alternating current is satisfactory for surface cracks, but if the deepest possible penetration is essential, direct current, direct...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940127
EISBN: 978-1-62708-302-7
... current densities, polarization characteristics, and physical variables such as anode-to-cathode area ratios and fluid velocity. It also discusses the effect of corrosion inhibitors, galvanic coupling, and external currents, making extensive use of polarization curves. chemical kinetics corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480001
EISBN: 978-1-62708-318-8
... Abstract This chapter provides an overview of the production and use of titanium and its significance as an engineering material. It begins by identifying important deposits and ores and assessing current and future production capacities and how they align with global consumption trends. It...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500301
EISBN: 978-1-62708-317-1
... Flatpack proximity sensor used for slug ejection. Source: Ref 15.16 Fig. 15.9 Working principle of an inductive proximity sensor. AC, alternating current. Source: Ref 15.14 Fig. 15.8 Schematic design of linear variable differential transformer. Source: Ref 15.11 Fig. 15.4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... and can automatically sort the bars on the basis of seam depth. Electromagnetic systems include the systems that use magnetic fields generated by alternating current flowing in a solenoid. A wide range of frequencies is used. As the alternating current flows through the solenoid, the magnetic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... electric coil in which an alternating current is flowing. As shown in Fig. 10 , this alternating current, called the exciting current, causes eddy currents to flow in the part as a result of electromagnetic induction. Fig. 10 Two common types of inspection coils and the patterns of eddy current...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
...-ray, and eddy current testing. fracture toughness metallography fatigue testing hardness testing nondestructive testing tensile testing THE LEVEL OF QUALITY of a product or service may be judged by the customer based upon conformance to the relevant set of specifications or standards...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... or liquid penetrant inspection. Equipment for magnetic particle inspection uses direct or alternating current to generate the necessary magnetic fields. The current can be applied in a variety of ways to control the direction and magnitude of the magnetic field. In one method of magnetization, a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030338
EISBN: 978-1-62708-282-2
... pipeline Fig. 5 Pipeline that experienced stray current corrosion caused by inverting the electrical leads to a cathodic protection rectifier Field experience and laboratory research results indicate that stray alternating current (ac) also can cause accelerated corrosion of underground...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
... ferromagnetic metal forgings are described below. The contact method of magnetization was selected to inspect the ferromagnetic materials. Prods are used to pass direct current or rectified alternating current through the workpiece. The magnetic particles are nontoxic, finely divided ferromagnetic material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
... corrosion rate is based on measurement of alternating current (ac) impedance over a range of applied frequencies. The method is rapidly expanding due to the development of applicable instruments and the capability of the method in providing additional information on the corrosion process and electrochemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110025
EISBN: 978-1-62708-247-1
...-destructive localization techniques. The techniques considered for advanced fault isolation are magnetic current imaging for shorts and opens; infrared thermography for electrical shorts; time-domain-reflectometry for shorts and opens; scanning acoustic microscopy; and 2D/3D X-Ray microscopy. The individual...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
... base material. This chapter discusses the process of corrosion and how to prevent or mitigate its effects. It describes several forms of corrosion, including uniform, intergranular, pitting, crevice, and stray-current corrosion, and the effects of stress-corrosion cracking, corrosion fatigue, and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560005
EISBN: 978-1-62708-291-4
... Abstract This chapter discusses the development of the nomenclature used to describe the constitution and structure of metals and alloys, particularly the phases observed in the microstructure of steel. It also points out some of the problems with current nomenclature and provides...