AMPP Store - Conference Papers

Available for download

Preventing Crevice Corrosion in New and Existing Steel Structures

Product Number: 51218-152-SG

Author: Eric Shoyer

Publication Date: 2018

$20.00

Steel structures are often fabricated by bolting (or riveting) structural components together. Bolted joints result in multiple crevices between the bolted members and fasteners. These crevices are typically more susceptible to corrosion than flat surfaces because they tend to retain water/contaminants, they are difficult to properly coat, and the crevice geometry tends to support electrochemical phenomena that accelerate corrosion. This paper will evaluate the effectiveness of various coating practices at mitigating corrosion around these joints.

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Preventing Corrosion under Insulation - New Generation Solutions for an Age Old Problem

Product Number: 41207-333-SG

Author: M. Halliday

Publication Date: 2007

$20.00

Protection of steel exposed to high temperature areas, in particular those which are insulated, provides some of the most demanding situations faced by coatings. Systems applied in these areas are required not only to give resistance to high operating temperatures (which are often cyclic) but also provide corrosion protection.

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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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Prevention and Control of Corrosion - It’s a Matter of Choice

Product Number: 41215-899-SG

Author: Roger Hamerlinck

Publication Date: 2015

$20.00

What would you say to someone if they accused you of intentionally accepting corrosion that led to damage or loss of military equipment, infrastructure and facilities or the injury, lost time, loss of lifer? The truth is, we do choose to accept corrosion and its negative consequences based on the tradeoffs/choices and limitations we are faced with. Scientists say that the average human makes thousands of decisions every day. Researchers at Cornell have found that the average human makes approximately 230 decisions a day on food alone.

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Preventive Maintenance in Older Facilities

Product Number: 41208-462-SG

Author: Bruce Woodruff

Publication Date: 2008

$20.00

Many industries are operating under severely limited O&M budgets and have been for some time. “Lean and mean” in today’s reality has become “mal-nourished and over stressed”. The last major corrosion study conducted in our industry showed a $276 Billion/Yr. deficit of which 75% was unrecoverable. Now a new study has determined that it is never too late to restore measurable viability to a facility's operation through adequate and proper preventive maintenance. This is good news, providing we can adequately demonstrate and use it.

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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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Principles and Issues in Structural Health Monitoring Using Corrosion Sensors

Product Number: 51317--9240-SG

ISBN: 9240 2017 CP

Author: YongJun Tan

Publication Date: 2017

$20.00

Fundamental aspects in the design and application of corrosion sensors, as well as challenges that may lead to the reporting of inaccurate or misleading corrosion data, has been discussed and illustrated by the case of under-deposit corrosion monitoring using a multi-electrode array.

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Prioritization of Potential HVAC Interference on a 6000 Mile Transmission Pipeline System

Product Number: 51317--9260-SG

ISBN: 9260 2017 CP

Author: Meng Lopez-Garrity

Publication Date: 2017

$20.00

This paper describes some of the materials and process challenges facing geothermal energy developers targeting efficiency improvements and extremes of aggressive geothermal fluid chemistries and temperatures.

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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.

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Proactive Corrosion Control Assessment to Treat Higher-Acidity Gas

Product Number: 51324-20773-SG

Author: Omar S. Al-Abdulgader; Mohammed A. Al-Muaisub

Publication Date: 2024

$40.00

Prior to commissioning of a new gas treatment plant, geotechnical analysis showed significant increase in the acidity levels of the feed. Therefore, on-site proactive corrosion control assessment was performed to enable processing higher-acidity gas safely without impacting project schedule. The corrosiveness level of the new feed was re-evaluated in terms of the new required operating conditions. The dominant corrosion damage mechanisms were identified based on the new levels of Hydrogen Sulfide and Carbon Dioxide. Industrial standards and engineering practices were utilized to determine the potential impact on assets integrity. Top corrosion challenges that could be driven up by the increase in acid gas levels were proactively identified. Potential risks in the inlet and gas sweetening facilities were assessed, including the possibility of developing accelerated corrosion at the amine contactor and regenerator columns. The material endurance for the higher operating conditions, temperature and pressure, was evaluated. Further, different inspection techniques were utilized to validate the study results and findings. The inspection methods that were used to analyze and assess the amine contactor and regenerator columns are the On-Stream Inspection (OSI) using the External Ultrasonic Testing (UT) and Visual Examination of the internal surface of the equipment during the turnaround interval. Moreover, process and corrosion simulations of anticipated acid gas and water levels were performed to evaluate the need for advanced corrosion control and inspection measures. Based on that, an effective corrosion control strategy was established including different integrated mitigation measures to ensure assets integrity throughout their full-life cycle.

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Proactive Corrosion Management for Dead-legs

Product Number: 51319-13290-SG

Author: Mohammed Al Shahrani

Publication Date: 2019

$20.00

Identifying dead-legs and their related corrosion issues continues to be a challenge in the process industry.This paper presents a comprehensive program for managing corrosion in dead-legs. A three-step methodology is adopted focusing on identification control and monitoring. The identification step entails a comprehensive No Flow/ Low Flow (NFLF) survey. The survey revealed dead-legs in locations where stagnation of oily water containing dissolved carbon dioxide hydrogen sulfide and possibly oxygen at the center bottom portion of pipes associated with stabilization units and NGL compression trains at hydrocarbon operating facility. Consequently the stagnant flow condition significantly contributed to a severe wall thinning that was confirmed by using appropriate Non-Destructive Testing (NDT) technology such as Ultrasonic Testing (UT). The encountered risk was 60% metal loss from the base metal of the defective dead-legs.This corrosion was controlled by establishing a flushing program that is implemented by operation and monitored by inspection team. Additionally for low-flow locations a minimum velocity of 1m/s was maintained where possible. In the last step the effectiveness of the program was monitored by conducting full UT-Scanning every three years and then trending the corrosion rates.Key words: dead-legs management system No Flow/ Low Flow (NFLF) survey Ultrasonic Testing (UT) monitoring strategy

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Individual Conference Papers

Preventing Crevice Corrosion in New and Existing Steel Structures

Preventing Corrosion under Insulation - New Generation Solutions for an Age Old Problem

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

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

Prevention and Control of Corrosion - It’s a Matter of Choice

Preventive Maintenance in Older Facilities

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

Principles and Issues in Structural Health Monitoring Using Corrosion Sensors

Prioritization of Potential HVAC Interference on a 6000 Mile Transmission Pipeline System

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

Proactive Corrosion Control Assessment to Treat Higher-Acidity Gas

Proactive Corrosion Management for Dead-legs

Association for Materials Protection and Performance