AMPP Store - Products tagged with 'cyclic polarization'

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07675 Sensitization of Laser-Etched Surfaces in Stainless Steel Surgical Tools

Product Number: 51300-07675-SG

ISBN: 07675 2007 CP

Author: Lorrie A. Krebs

Publication Date: 2007

$20.00

Results here of an effort to identify a potentiodynamic means of inducing corrosion in laser-etched areas of stainless steel tools. The electrochemical technique should be able to distinguish between “good” and “bad” etches relatively quickly so that it may be used to help refine the laser etch process, and ultimately assist in quality assurance.

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51317--9781-Investigation the Pitting Resistance of SS304 and SS316L in Neat Chemical Products Using EIS

Product Number: 51317--9781-SG

ISBN: 9781 2017 CP

Author: Yolanda De Abreu

Publication Date: 2017

$20.00

Corrosion behavior of austenitic stainless steel UNS S30400 (SS304) and austenitic stainless steel UNS S31603 (SS316L) was investigated to confirm, for the same chemicals and metallurgies, that electrochemical impedance spectroscopy (EIS) could be used as a tool to investigate the compatibility of neat chemical with stainless steels.

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Corrosion Inhibition Of Automotive Parts In Water-Ethylene Glycol Solutions

Product Number: 51322-17593-SG

Author: Behzad Bavarian, Koushik Kosanam, Lisa Reiner

Publication Date: 2022

$20.00

The efforts to lower automotive component weight to make cars more fuel efficient has increased the demand for aluminum alloys. In these applications, substantial amounts of heat are generated due to engine combustion, making it necessary to cool the engine systems. Metals in an engine application will rely on coolant to transfer heat. Corrosion behavior is another consideration for metals. Aluminum alloys, similar to the metals they are replacing, are sensitive to corrosion, especially in an aqueous alkaline environment.

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Developing Vapor Phase Corrosion Inhibitors for Aluminum Alloys in Ethylene Glycol Coolant Solutions

Product Number: 51324-20382-SG

Author: Behzad Bavarian; Lisa Reiner

Publication Date: 2024

$40.00

Different vapor phase corrosion inhibitors were evaluated to determine their corrosion inhibition for aluminum alloys in Ethylene glycol (C2H6O2) coolant mixture. When the temperature exceeds 80°C, ethylene glycol can decompose into organic acids. The resulting acidic environments cause severe localized corrosion of aluminum alloys. The corrosion behavior was studied at multiple temperatures in different corrosion inhibitors using different concentrations. Corrosion inhibitor VCI-A, VCI-B, VCI-C, and VCI-D at 2.5-3.0% dosage showed excellent corrosion protection. VCI-A, VCI-C and VCI-D maintained a steady, low corrosion rate during long term exposure by neutralizing pH and forming a hydrophobic film. They increase the polarization resistance by a significant factor, therefore, lowered corrosion rate. VCI-B inhibitor, also showed the ability to reduce the corrosion rate of aluminum in ethylene glycol solutions. However, due to its high pH chemistry, the effective dosage should be maintained at <2.5% to avoid any potential increase in pH that can promote localized corrosion or under-deposit corrosion attacks of aluminum alloys. The results of this investigation demonstrated that these inhibitors can lower the corrosion rate in water-ethylene glycol solutions by neutralizing pH and forming stable films.

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Fast screening of Sulfide Stress Corrosion resistance of Supermartensitic Stainless Steel thought alternative test methods

Product Number: 51320-14577-SG

Author: Martien Duvall, Cécile Millet, Daniela Garcia, Guilaume Neel, Harold Evin

Publication Date: 2020

$20.00

In order to meet growing energy demand, oil and gas industries are facing many challenges, including the exploitation of increasingly deep fields with high pressure and high temperature in sour environments containing CO2 and H2S. Operators must carefully select materials that are resistant to these aggressive environments. The main risk associated with the use of martensitic stainless steels is the risk of sulfide stress cracking under well shut-in conditions.
The aim of this study is to evaluate the performance of supermartensitic stainless steels (13Cr-5Ni- 2Mo) based on NACE TM-0177-2016 method A and alternative methods such as slow strain rate test according to TM-0198-2016 and ripple strain rate test. Cyclic potentiodynamic polarization measurements were also performed to evaluate pitting and repassivation performance. The interest of this study is to present reliable and fast criteria to predict sulfide stress cracking performance of supermartensitic stainless steels through alternative methods. The effect of buffer and chloride content on pitting resistance and sulfide stress corrosion cracking resistance will also be discussed as well as the effect of Mo and Cr on pitting resistance.

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Localized Corrosion on Coating Damaged Surface of Automotive Suspension Coil Springs

Product Number: 51317--9152-SG

ISBN: 9152 2017 CP

Author: Yugo Ashida

Publication Date: 2017

$20.00

This study focuses on a better understanding of pitting and crevice corrosion on coating surface damaged carbon steels in automotive applications. Immersion and cyclic polarization tests were conducted on bare and coated metals in a 5% NaCl solution.

Products tagged with 'cyclic polarization'

07675 Sensitization of Laser-Etched Surfaces in Stainless Steel Surgical Tools

51317--9781-Investigation the Pitting Resistance of SS304 and SS316L in Neat Chemical Products Using EIS

Corrosion Inhibition Of Automotive Parts In Water-Ethylene Glycol Solutions

Developing Vapor Phase Corrosion Inhibitors for Aluminum Alloys in Ethylene Glycol Coolant Solutions

Fast screening of Sulfide Stress Corrosion resistance of Supermartensitic Stainless Steel thought alternative test methods

Localized Corrosion on Coating Damaged Surface of Automotive Suspension Coil Springs

Association for Materials Protection and Performance