AMPP Store - Online Conference Paper

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Predictive Analytics and Machine Learning in Integrated External Corrosion Management

Product Number: 51323-19393-SG

Author: Thomas Hayden, Joseph Mazzella, Keith Parker, Christophe Baete

Publication Date: 2023

$20.00

Managing external corrosion, especially for underground assets, is a significant challenge dating back to the first underground pipeline in 1865. The very first issue of the journal, CORROSION, featured a headline story on this subject. This subject is fundamental for corrosion engineers and pipeline operators.

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Predictive Coating Condition Model For Coating Lifetime Under Environmental Stressors

Product Number: 51322-17685-SG

Author: Victoria Avance, Brandi Clark, Liam Agnew, Fritz Friedersdorf

Publication Date: 2022

$20.00

The corrosion of aircraft costs the U.S. Department of Defense billions of dollars annually and accounts for a significant portion of maintenance time and costs.1 Coatings are the most effective way to protect aircraft, but they have a finite lifetime and must be maintained or replaced before the underlying substrate is damaged by corrosion. Current aircraft maintenance practices call for coating inspections and maintenance based on elapsed time and not on measurements of coating health. Coating lifetime varies depending on the environmental stressors experienced in service, including temperature, humidity, and salt loading.

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Preliminary Investigation on Ultrasonic Spot Welding of Aluminum Alloys

Product Number: MPWT19-15298

Author: Mohamed Wahba, Miloud Souiyah

Publication Date: 2019

$0.00

High-powered ultrasonic spot welding of metals is receiving growing interest as a prominent candidate to replace resistance spot welding, particularly of aluminum alloys, due to features such as solid-state welding, low energy consumption, short welding time, and long tool life. In this method, high-frequency ultrasonic vibrations are applied to overlapping components held under normal static force. A relative motion of very short amplitude is generated between the two surfaces, which breaks the oxide films and brings fresh metal surfaces into contact, whereupon a metallurgical bond is developed. The current study was conducted to investigate the characteristics of ultrasonic spot welding of AA6061-T6 aluminum alloy. Tensile lap shear tests were performed to evaluate the strength of joints produced with different welding parameters. Furthermore, the influence of weld energy on joint attributes was characterized through microstructure examination and micro-hardness measurement. It was possible to optimize the welding parameters to obtain joints of high strength. The results revealed that the higher the weld energy, on the one hand, promoted joint strength and on the other hand, expanded the softening area in the welded components.

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Preliminary Results From Assessment Of Advanced Manufacturing Technologies (AMT) For Reactor Materials And Components

Product Number: ED22-17118-SG

Author: Mark Yoo, Matthew Hiser, Amy Hull

Publication Date: 2022

$20.00

The Nuclear Regulatory Commission’s (NRC’s) approach to preparing to regulate and review industry proposals for using advanced manufacturing technologies (AMTs) in commercial nuclear applications focuses on identifying differences with AMT relative to conventional manufacturing. Initial AMTs based on industry interest include laser powder bed fusion (LPBF) and laser-directed energy deposition (L-DED) additive manufacturing (AM) methods, powder metallurgy-hot isostatic pressing (PM-HIP), electron beam welding (EBW), and cold spray (CS).

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Preliminary Study to Characterize Concrete Durability by Water Permeation and Electrochemical Impedance Spectroscopy

Product Number: 51324-21167-SG

Author: Kingsley Lau; Amer Awwad; Samanbar Permeh; Atorod Azizinamini

Publication Date: 2024

$40.00

Sustainability of civil infrastructure construction can in part be attained by better testing to identify important material characteristics that affect durability. The quality of the concrete in reinforced concrete structures is a primary factor that enhances corrosion durability of reinforced concrete structures. The concrete may be assessed for quality control using methods such as bulk ion diffusivity tests, accelerated electrical migration tests, and electrical resistivity. There is interest in non-destructive in-situ testing for assessment of structures in service. In this study, preliminary tests were conducted to characterize the durability of concrete using a water permeation test, acoustic testing, as well as electrochemical impedance spectroscopy. Test results showed that the electrical properties of the hardened concrete can be assessed by electrochemical impedance spectroscopy where a high frequency impedance loop (relating to the bulk material and internal moisture content) can be discerned. The concretes with lower water-to-cement ratio and larger coarse aggregates showed larger resonant frequency values that can be attributed to greater developed stiffness. A water permeation test was also demonstrated to differentiate internal moisture conditions, and its results (described by a decay factor derived from mass and energy balance) was well correlated to its concrete electrical parameters.

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Premature Failure of Copper Nickel Tubes Due to Microbiologically Influenced Corrosion (MIC) -A Case Study

Product Number: MECC23-20150-SG

Author: Abdullah M. Alratoee; Min Hyun Cho; Naif H. Abdulkareem

Publication Date: 2023

$20.00

The refining industry has made significant strides in technology and materials science, resulting in increased efficiency and reliability of various refinery units. Despite these advancements, unexpected failures persist, leading to costly downtime and potential safety hazards. A recent instance of premature failure in a newly commissioned Naphtha Hydrotreating unit (NHT) highlights the challenges that still exist in maintaining the integrity of critical infrastructure.

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Preservative Biocide Selection and Performance in High Pressure High Temperature Bioreactors using a Thermophilic, Hydraulic-Fracturing Relevant Culture

Product Number: 51323-18967-SG

Author: Ethan Solomon, Philip Maun, Veronica Silva, and Ken Wunch

Publication Date: 2023

$20.00

Biocides are used in hydraulic fracturing operations to control the growth of contaminant microorganisms that lead to corrosion, souring, and conductivity loss.1,2 A variety of biocides are utilized and can be classified by mechanism of action, speed of kill, and the length of residual activity.
In general, rapid-acting biocides such as chlorine dioxide (ClO2) and DBNPA (2,2-dibromo-3- nitrilopropionamide) inactivate bacteria quickly but have little to no residual activity. Glutaraldehyde (Glut) reacts more slowly and provides some residual activity, particularly at lower wellbore or reservoir temperatures.

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Pressure Vessel Thickness Monitoring and Analyzing Using Linear Regression and Control Chart

Product Number: 51323-18821-SG

Author: Chen Shao-Chi, Hsieh Cheng-Hsuan

Publication Date: 2023

$20.00

Metal loss due to corrosion is a universal phenomenon in refineries which could in turn cause leakage or explosion if not well monitored. There are several units in a refinery such as crude distillation unit, hydro-processing unit, acid alkylation unit, etc. In each unit, there are hundreds of pressure vessels which have different potential damage mechanisms. Hence, it’s critical to establish an effective and efficient way to monitor thickness changing behavior.

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Preventing Corrosion under Insulation in Piping - Trends after Evaluating Digital Data from Thousands of Piping Circuits

Product Number: 51323-18871-SG

Author: Eddie Sanchez, Michael Townsend, Michael Nichols, Katherine Jonsson, Eric Sjerve, Ana Benz

Publication Date: 2023

$20.00

Extensive guidelines have been published for selecting where to search for corrosion under insulation (CUI). The guidelines are based on CUI failures and near misses. Piping CUI inspection programs collect the data outlined as relevant in specific company practices.

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Preventing Emergency Landings: Addressing Jet Fuel Filter Clogging and Microbial Contamination

Product Number: 51324-20799-SG

Author: Anil Kumar Chikkam; Aaron Ulmer; Nathan Pace; Edward Larkin; Mehrooz Zamanzadeh

Publication Date: 2024

$40.00

Emergency landings, also known as "aircraft on ground" (AOG) situations, can arise from various causes, including the clogging of jet fuel filters. This paper focuses on the problem of clogged fuel filters and its connection to microbial growth. When a jet fuel filter becomes clogged, even with a full fuel tank, pilots receive a low fuel message, necessitating an emergency landing at the nearest airport. Failure to address the root cause of filter clogging may result in recurring incidents, causing further disruptions to air travel schedules. To mitigate such issues, it is crucial to identify and take appropriate measures to prevent the recurrence of clogged fuel filters. Our analysis of numerous jet fuel filters has revealed that microbial growth is a prevalent cause of clogging. Microbial contamination within fuel tanks lead to filter obstructions, operational disruptions, and emergency landings. In this paper, we will discuss interesting case studies of fuel filter clogging due to microbes, metal chips, and lint. Also, in this paper we will focus on periodic sampling and testing of jet fuels to detect microbial growth. Employing proper tank cleaning procedures, ensuring appropriate fuel handling, and utilizing biocides can effectively control microbial growth within jet fuel systems.

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Primer For The Inspection, Testing, And Analysis Of Electrically Continuous Reinforced Concrete Structures

Product Number: 51322-17514-SG

Author: Samuel R. Rivera Jr.

Publication Date: 2022

$20.00

Population growth in city centers has spurred the expansion and new construction of direct current (DC) powered transit systems throughout the world1. Despite stringent design criteria, quality assurance and quality control (QA/QC) monitored construction practices and ongoing track maintenance, it is a fact that DC stray current will eventually occur and negatively impact buried and/or submerged metallic structures immediately adjacent and within the transit right-of-way (ROW)2. In combination with other methods to reduce stray current such as high track-to-earth (TTE) resistance values and shorter distances between substations, transit agencies are specifying the welding of reinforced steel structures within their purview such as retaining walls and footings, approach slabs, aerial inverts, and bridge abutments to prevent stray current from reducing the design life of surrounding metallic
structures.

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Proactive Cleaning, Maintenance and Inspection of Vessel Hulls Via Autonomous Robots

Product Number: 51323-19315-SG

Author: Karl Lander

Publication Date: 2023

$20.00

Prevention of corrosion on submerged surfaces, particularly ship’s hulls, is a challenging process. Beyond the corrosive effects of seawater, biofouling will start to accumulate, and if left unchecked, can potentially damage the coating reducing its anti-corrosive properties. In stationery applications, the biofouling may be of little immediate significance, but in the case of vessels, biofouling will greatly increase hull resistance, leading to reduced speed, greater fuel consumption and emissions, as well as enabling the transfer of alien species as the vessels travel the globe.

Online Conference Paper

Association for Materials Protection and Performance