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linear polarization resistance

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Published: 01 January 2006
Fig. 3 Three-electrode linear polarization resistance probe schematic. Dimensions given in inches. IL, insertion length. NPT, American National Standard Taper Pipe Thread. Source: Metal Samples, Munford, AL More
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Published: 01 January 2006
Fig. 12 Linear polarization resistance corrosion rates of the three soil probes (not connected to pipeline) and the pipeline potentials of the two experiments as a function of time More
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
.... Electrochemical techniques discussed include linear polarization resistance, electrochemical noise, harmonic distortion analysis, electrochemical impedance spectroscopy, and hydrogen permeation. The principles of operation for the corrosion measuring techniques are described along with examples of their use...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003655
EISBN: 978-1-62708-182-5
... resistance (ER) and inductive resistance, linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS), zero-resistance ammetry (ZRA), electrochemical noise (ECN) and self- linear polarization resistance (SLPR). Indirect techniques measure parameters that are indirectly related...
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Published: 01 January 2003
Fig. 1 Algorithm for suitability of electrical resistance (ER) and linear polarization resistance (LPR) corrosion monitoring techniques as a function of electrolyte conductivity and estimated corrosion rate. R is the electrolyte resistivity in kΩ · cm and C is the corrosion rate in mils More
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Published: 01 January 2003
Fig. 1 Cumulative-loss data from electrochemical measurements in molten slag. LPR, linear polarization resistance; harmonics, harmonic distortion analysis (HDA). Source: Ref 1 More
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Published: 01 January 2006
Fig. 22 Monitoring of corrosion in drilling fluids versus flow conditions. LPR, linear polarization resistance; Pitting Factor values, defined as the standard deviation of the corrosion current divided by the mean corrosion current, ≥0.1 indicate active pitting conditions. More
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Published: 01 January 2003
Fig. 3 Smoothed corrosion rates from electrochemical noise (ECN) and linear polarization resistance (LPR) measurements from the same probe within an oil/water separation plant. The oscillations correlated with daily operations of a vacuum truck. Source: Ref 18 More
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Published: 01 January 2006
Fig. 23 Differences in corrosion rate and modality—(a) pitting and (b) general corrosion—as determined by automated, real-time electrochemical corrosion monitoring system using linear polarization resistance, electrochemical noise, and harmonic distortion analysis. Note comparison More
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003719
EISBN: 978-1-62708-182-5
... polarization resistance multiplied by; diameters (magni cation) log common logarithm (base 10) RE reference electrode multiplied by LPR linear polarization resistance Re Reynold s number / per LSI Langelier saturation index Ref reference m mass; molar (solution) RF radiofrequency % percent mc mass...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.9781627081832
EISBN: 978-1-62708-183-2
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0006540
EISBN: 978-1-62708-183-2
... Institute of Standards and SLPR self-linear polarization resistance SMIE solid metal induced embrittlement resistance Technology SRB sulfate-reducing bacteria; solid rocket IUPAC International Union of Pure and nm nanometer No. number booster (space shuttle) Applied Chemistry NSF National Sanitation...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.9781627081849
EISBN: 978-1-62708-184-9
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004225
EISBN: 978-1-62708-184-9
... logarithm (base e) FEA Faraday constant critical current or current density mc lique ed natural gas FEM Federal Aviation Administration IASCC M common logarithm (base 10) FEP for passivation M linear polarization resistance FFT (U.S.) IC passive current or current density mA Langelier saturation index FGD...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003638
EISBN: 978-1-62708-182-5
... polarization resistance and electrochemical noise have moved from the laboratory to the processing plant and beyond to help with the detection of general and localized corrosion. Electrical and inductive resistance probes are frequently used to measure general corrosion rates. Ex situ techniques...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003609
EISBN: 978-1-62708-182-5
... commonly used in aqueous solutions (e.g., electrochemical noise, linear polarization, and harmonic distortion analysis) to make measurements of corrosion and localization in laboratory studies. This work has even been carried on to use in commercial plant operations to help relate changes in process...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003661
EISBN: 978-1-62708-182-5
... in electrochemical terms. Thus, they are not considered as on-line techniques for routine monitoring of localized corrosion. There are on-line techniques ( Ref 9 ), such as electrochemical linear polarization resistance (LPR) and electrical resistance (ER), but they are more suited to monitoring uniform rather than...
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
... a β c ( β a + β c ) ) where R p is the polarization resistance (Ω · cm 2 ) given by ∂ E /∂ i at t = ∞ and Δ E = 0. i app is often approximately linear with potential within ±5 to 10 mV of E corr as shown for AISI 430 stainless steel in H 2 SO 4 ( Fig. 3...
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
..., this technique is referred to as the polarization- resistance technique or, less precisely, as the linear polarization technique ( Ref 4 ). From this research, it also becomes clear that corrosion current densities, i corr , can be obtained from the analysis of anodic and cathodic polarization curves, which...
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...