AMPP Store - Individual Conference Papers

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SCC Initiation and Growth Rate Response of A-286 in B/Li and B/K Solutions 340°C

Product Number: ED22-17262-SG

Author: P.L. Andresen, P. Chou

Publication Date: 2022

$20.00

Stress corrosion cracking (SCC) initiation and growth rate testing was performed using Alloy A-286, a high-strength iron-base alloy, to evaluate for possible differences in response in boric acid solutions containing KOH vs. LiOH. PWRs are considering a switch from LiOH to KOH because of the uncertain future availability and high cost of Li. To achieve the same pH at temperature (pHT) in typical PWR primary water, the same molar concentration of Li and K is needed. The atomic weight of K is 39.1, which is 5.63 higher than the atomic weight of Li at 6.94, so 1 ppm Li yields the same pHT as 5.63 ppm K. The conductivity differs somewhat because of difference in the mobility of Li+ and K+.

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SCC of Alloy 152/52 Welds Defects, Repairs, Dilution Zones and HAZs in PWR Water

Product Number: ED22-17243-SG

Author: Peter L. Andresen, Chris Wax

Publication Date: 2022

$20.00

Stress corrosion cracking (SCC) has been observed for over six decades in light water reactors structural components, with wide variations in the rate of SCC initiation and crack growth. Newer materials have been adopted in the last three decades, primarily the ~30% Cr Alloy 690 (UNS N06690) and its weld metals, Alloy 52 (UNS W86052) and Alloy 152 (UNS W86152). These materials were initially viewed as immune to SCC, but are now recognized to be susceptibility to SCC, and can exhibit high growth rates in some conditions.

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SCC Of Alloy 82 Weld Metal In BWR Water

Product Number: ED22-17242-SG

Author: Peter L. Andresen, Katsuhiko Kumagai

Publication Date: 2022

$20.00

There is extensive evidence from laboratory data and plant experience of the SCC susceptibility of Alloy 82 weld metal in both BWR and PWR environments. Two international expert panels evaluated laboratory data under PWR conditions and created disposition curves to address the effects of stress intensity factor (K), temperature, and other factors. Another expert panel is creating a disposition
curve under BWR conditions for K, temperature, corrosion potential, impurities, and other factors. Nickel alloy weld metals at lower Cr levels (~15% Cr for Alloy 182 and ~20% Cr for Alloy 82) are more susceptible to SCC than weld metals of higher Cr content (~30% Cr for Alloy 52/152). This paper focuses on on-thefly effects on SCC growth rate of Alloy 82 weld metal in BWR environments of corrosion potential, water
purity and temperature.

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SCC Of Tensile Wires At High CO2 Partial Pressure In Simulated Annulus Environments Of Flexible Pipes

Product Number: 51322-17898-SG

Author: Pedro Netto da Silva, Gaute Svenningsen, Arne Dugstad, José Antônio da Cunha Ponciano Gomes

Publication Date: 2022

$20.00

Unbonded flexible pipes used for transporting process fluids in offshore oil and gas production systems have a complex structure, with alternate polymer and metallic layers. Tensile armors are metallic layers constructed by the helical wrapping of high strength carbon steel wires, and they are responsible for the integrity of the pipe. These armors provide axial strength and torsion resistance to the pipe so that it can sustain its own weight and resist to stresses associated to environmental conditions and vessel motion.

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SCC Susceptibility Potential Range for Carbon Steels Used in Nuclear Waste Tanks Determined with a Crack Growth Rate Technique

Product Number: 51324-21154-SG

Author: B.C. Rollins; S. Chawla; J.S. Page; C.L. Girardot; S.T. Campbell

Publication Date: 2024

$40.00

Stress corrosion cracking (SCC) is a documented threat to the integrity of carbon steel radioactive waste storage tanks at the Hanford Nuclear Reservation. A previously published study compared the slow strain rate (SSR) test technique to three alternative SSR methods. That study showed that, regardless of the technique employed, inconclusive results due to subjective aspects of the post-test evaluation are possible. Additionally, the study suggested that the crack growth rate (CGR) technique might reduce ambiguity and more accurately define the critical cracking potential (CCP). The focus of the current study was determining the potential window of SCC susceptibility using the CGR technique as compared to multiple SSR techniques. The results of the study showed the minimum applied potential required to sustain cracking was dependent on whether intergranular SCC was already established. A more noble potential was required to activate intergranular SCC than it was to maintain cracking.

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Screening For Selective Seam Weld Corrosion and Long Seam Anomalies in ERW Pipe Using ILI Data. A Case Study

Product Number: 51323-19476-SG

Author: Bernardo Cuervo, Mark McQueen

Publication Date: 2023

$20.00

On July 8th, 1986, an 8-inch pipeline transporting gasoline ruptured in Mounds View, Minnesota. Vaporized gasoline combined with air and liquid gasoline flowed along neighborhood streets. Approximately 30 minutes later, a vehicle entered the area igniting the gasoline vapor.

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Secondary Containment Coatings/Linings @ 91st Ave WWTP Phoenix, AZ Highlighting the Forgotten Basics

Product Number: 41210-525-SG

Author: Eric Brackman

Publication Date: 2010

$20.00

Like many other areas Phoenix Arizona has unique coatings/linings guide specifications for secondary containment structures. Each entity drafts specifications to fit the particular needs of the project. Each specification has nuances that make it unique. The one thing the majority of them have in common is ACCOUNTABILTY . The word alone should keep everyone on their toes. The focus of this paper is to look at a few nuances the City of Phoenix brings to the table which may or may not make you think.

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Secrets to Success - Examining the History and Chemistry Behind the Performance of Vinyl Resin Coatings

Product Number: 51216-013-SG

Author: David Tordonato, Bobbi Jo Merten, Allen Skaja, Alfred Beitelman

Publication Date: 2016

$20.00

This work provides an overview of solution vinyl coating history and formulation as well as results and discussion for preliminary testing. Corrosion performance and material properties using modern laboratory techniques are needed to provide a benchmark for the development or evaluation of next generation polymer coatings that may someday provide a green alternative to the legacy vinyl systems.

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Segmented Multi Electrode Sensor for Investigation of Environment-Assisted Cracking Under Dynamic Atmospheric Conditions

Product Number: 51317--8946-SG

ISBN: 8946 2017 CP

Author: Patrick Kramer

Publication Date: 2017

$20.00

Thin film electrolyte electrochemical tests have been conducted using a segmented, multi electrode sensor with an artificial crevice to quantify the interaction of crack tip and crack mouth during cyclic atmospheric corrosion tests.

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Selecting Appropriate Protective Treatment For Finished Concrete Floors

Product Number: 41214-849-SG

Author: Joe Reardon

Publication Date: 2014

$20.00

Explains why concrete floors need protective treatments, identifies two main categories of protective treatments, and recommends appropriate protective treatments based on purposes and finishes of concrete floors.

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Selecting Representative Laboratory Test Conditions for Mildly Sour Sulfide Stress Corrosion (SSC) Testing

Product Number: 51314-4243-SG

ISBN: 4243 2014 CP

Author: Amit Kumar

Publication Date: 2014

$0.00

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Selection And Optimization Of Cathodic Protection Test Posts Used Or Necessary To Adequately Verify The Performance Of Cathodic Protection Systems In Annual Surveys

Product Number: 51321-17011-SG

Author: Craig Stevenson; Len J Krissa; Keith Parker; Alfonso Garcia Rojas; Rob Floria

Publication Date: 2021

$20.00

Individual Conference Papers

Association for Materials Protection and Performance