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large-signal polarization test

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003644
EISBN: 978-1-62708-182-5
... available for laboratory studies of corrosion phenomena. The techniques and tests include no-applied-signal tests, small-signal polarization tests, large-signal polarization tests, scanning electrode techniques, and miscellaneous techniques. electrochemical corrosion electrochemical test...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
... used broadband ultrasonics to permit taking data over a range of frequencies in a single test ( Ref 26 ). This allows determination of the interaction of various frequencies with the tested materials. Typical broadband ultrasonic methods use a short, narrow pulse as the input signal. This provides a...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003586
EISBN: 978-1-62708-182-5
... that signal conditions for high rates of corrosion. Techniques discussed include Tafel extrapolation, polarization resistance, electrochemical impedance spectroscopy, electrochemical noise resistance, use of rotating disks and cylinders to study aspects of corrosion affected by solution flow...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... Abstract This article describes testing and characterization methods of ceramics for chemical analysis, phase analysis, microstructural analysis, macroscopic property characterization, strength and proof testing, thermophysical property testing, and nondestructive evaluation techniques...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005683
EISBN: 978-1-62708-198-6
... current density determination by Tafel extrapolation, potentiodynamic measurement of the polarization resistance, electrochemical impedance measurement, and potentiostatic deaeration. Tests combining corrosion and mechanical forces, such as fretting corrosion tests, environment-assisted cracking tests...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003659
EISBN: 978-1-62708-182-5
... corrosion testing. corrosion-monitoring method electrical-resistance probe side-stream loop electrochemical noise hydrogen-probe corrosion rate ultrasonic thickness polarization-resistance corrosion potential alternating current data analysis IN-SERVICE MONITORING of industrial...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004114
EISBN: 978-1-62708-184-9
... include determination of cathodic protection current by casing polarization test and CPP test or by mathematical models; calculation of casing-to-anode separation; isolation of the casing from other facilities; consideration of stray current interference from other dc power sources; and determination of...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006402
EISBN: 978-1-62708-192-4
... Abstract The influence of friction and wear on the function and structure of tribological systems is determined by various types of tribological tests. This article introduces the general categories of tribological testing and describes the basic objectives of testing. It reviews the results of...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006469
EISBN: 978-1-62708-190-0
..., to a certain degree, the shape and orientation of large flaws ( Fig. 9 ). C-scans: This format provides a semiquantitative or quantitative display of signal amplitudes obtained over an area of the test piece surface. This information can be used to map out the position of flaws on a plan view of...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004117
EISBN: 978-1-62708-184-9
... EIS to measure soil corrosion rates ( Ref 18 ). Investigators preferred the EIS technique over other electrochemical techniques because of the following reasons: (a) the EIS technique is nondestructive because the 10 mV signal is not large enough to drive either the anodic or the cathodic reactions...
Book Chapter

By Jerome Kruger
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003585
EISBN: 978-1-62708-182-5
... decreased continuously and then ceased to change momentarily and arrested, before decaying to more active values that signaled the onset of the active state. Uhlig and King ( Ref 82 ) have given a number of examples of this transition through the Flade potential during the decay of passivity. Other studies...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003754
EISBN: 978-1-62708-177-1
... °F, water quenched, and tempered at 675 °C, or 1250 °F). Polarized light illumination. 100×. (G.F. Vander Voort) Fig. 26 Recrystallized Ti-6Al-4V alloy with a crack resulting from creep-rupture testing. Attack polished and color etched in 100 mL distilled H 2 O, 4 mL HCl, and 3 g NH 4 HF 2...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003600
EISBN: 978-1-62708-182-5
... plasma etchback. Fig. 2 Atomic force micrographs of the surface of an integrated circuit wafer after (a) tungsten polishing and (b) tungsten plasma etchback. ILD, interlayer dielectric Near the end of the 1990s, the delay in sending signals down metal interconnects became the limiter for...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... widely used of the two methods, although rebound testing is extensively employed, particularly for hardness measurements on large workpieces or for applications in which visible or sharp impressions in the test surface cannot be tolerated. Table 1 Classification of hardness testers Method...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... step-load test provides a stress intensity that is different at each load but remains constant with crack extension as each load level is sustained. Crack initiation is signaled by a drop in load ( Fig. 18 ). The rising step-load test was developed as an accelerated low-cost test to measure resistance...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003330
EISBN: 978-1-62708-176-4
... avoided by using uniform width (rectangular) test specimens ( Ref 10 ). The grips of the tension test frame introduce large clamping forces that can cause splitting failures or surface damage in the gripped region. These forces, coupled with normal stress concentrations induced by load introduction, can...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005730
EISBN: 978-1-62708-171-9
... assembly used for tensile adhesion testing of thermal spray coatings. Dimensions are in inches (1 in. = 25.4 mm). Source: ASTM C633 The common statistical tests of mean, standard deviation, and signal-to-noise ratio should be used in analyzing tensile bond strength data, but the analysis should not...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001296
EISBN: 978-1-62708-170-2
... chemical vapor deposition. Fig. 8 Pitting corrosion after salt spray testing of the coating-substrate system TiN deposited by physical vapor deposition NiP electrochemically deposited on brass. Source: Ref 24 Polarization (electrode potential versus current density) curves provide useful...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003647
EISBN: 978-1-62708-182-5
... 4 . Total corrosion loss determined from integrated R p data was less for the control sample than for the flushed sample. Large signal polarization is applied to obtain potentiostatic or potentiodynamic polarization curves, as well as pitting scans. Polarization curves can be used to...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003026
EISBN: 978-1-62708-200-6
... of frequency over which important dielectric relaxations may take place. Testing techniques can be divided into two broad categories. The first category contains techniques used for low (<10 8 Hz) frequencies, in which the wavelength of the electric field is large compared to sample dimensions...