AMPP Store - AMPP Conference Papers

Available for download

Evaluation On Applicability Of Nickel-Base Alloy Weld Materials With High Chromium Content In BWR Environment

Product Number: ED22-17130-SG

Author: Takahiro Hayashi, Yoshinori Katayama, Daiki Tanaka, Yumiko Tsuchiya, and Hidenori Takahashi

Publication Date: 2022

$20.00

Ni-base alloy weld material has been widely used for primary reactor components of BWR. Stress corrosion cracking (SCC) in Ni-base alloy welds is of an increased importance and an ongoing subject in the industry to secure material reliability of the components especially for long-term operation of light water reactors. Although alloy 82 has shown excellent service performance in BWR applications, it is known that alloy 82 exhibit SCC susceptibility in laboratory tests under simulated BWR environment with a combination of particular, severe test conditions such as high level of material cold work and highly accelerated environment. In addition, few experiences with SCCs in the welds associated with alloy 82 have been recently reported in the operating BWR plants.

Available for download

Evolution of Microstructures, Mechanical Properties, and Stress Corrosion Cracking Resistance of Alloy 718 Manufactured by LPBF and WAAM

Product Number: 51324-20706-SG

Author: Bing Han; Manuel Marya; Srinand Karuppoor

Publication Date: 2024

$40.00

Laser powder bed fusion (LPBF) is becoming a popular additive manufacturing (AM) process for oilfield components of Alloy 718. Despite attracting features, AM 718 is often uneconomical, greatly limited in size, while the build properties differ from wrought counterparts. Among AM processes, wire arc additive manufacturing (WAAM) offers a cost appeal and an improved scalability for Alloy 718. In this investigation, Alloy 718 coupons built by both LPBF and WAAM are compared for their microstructures, mechanical properties, and sulfide-stress cracking (SSC) resistance. To approach the properties of the wrought alloys, post-processes such as stress relief, hot-isostatic pressing, solution annealing and age hardening are revisited by jointly analyzing microstructures and mechanical properties. Further, slow-strain rate tests were completed to assess the SSC susceptibility of WAAM 718 relative to LPBF 718. This investigation demonstrates that LPBF 718 is capable of properties in line with its wrought counterpart, whereas much more work is needed for WAAM 718 to reach satisfactory quality and consistency.

Available for download

Evolving Excavation Damage Modelling Predictions to a Data-Driven Approach

Product Number: 51323-19558-SG

Author: Armando Borjas Leal, Stephen F. Biagiotti Jr.,

Publication Date: 2023

$20.00

Excavation damage is a recognized threat to pipeline integrity when external human activity contacts the pipe body creating a change in shape (i.e., dent, ovality) or wall thickness (i.e., gouge). Industry standards provide similar, but slightly different variations on this definition:

• ASME2 B31.8S (1) Section A-8: “Third party damage is defined in this context as third-party inflicted damage with immediate failure, vandalism, and previously damage pipe.”

• API3 RP 1160 (2) Annex A.9: “This threat arises from excavation, drilling, boring, farming, or other soil moving or removal activities where the mechanical equipment being used comes in contact with a buried pipeline causing it to leak or rupture.”

• CSA4 Z662:19 (3) Annex H: “Third party: Inadvertent external interference by a person or group of people other than the operating company and its employees and contractors.”

Available for download

Examination Of A Ferritic Martensitic Steel Following Irradiation And High Temperature Water Corrosion

Product Number: 51322-18127-SG

Author: Ronald N. Clark, Tomas Martin, Dong Liu, Kun Mo, Jean-Charles Eloi, Robert Burrows, Sean Davis, David Kumar, Chris Harrington, Chris Jones

Publication Date: 2022

$20.00

Nuclear energy currently contributes approximately 10 % of the worldwide energy mix.¹ Nuclear energy generation is a form of low-carbon electricity, typically run as base-load, which alongside renewables can help nations toward climate change goals. Nuclear fission thermal reactors make up the majority of the reactors operating today. Nuclear fusion on the other hand is a promising alternative which produces less radioactive waste and does not have a reliance on the finite source of uranium fuel. Eurofer-97, a reduced activation ferritic-martensitic (RAFM) steel, will be used as a structural material for fusion reactors. The earliest literature reference to RAFM steels originated from 1994 by Abe et al.² One option for the European demonstration fusion reactor (DEMO) is to use a water-cooled lead-lithium (PbLi) breeder blanket (WCLL BB) design for heat extraction. Breeder blankets will be used to generate a source of tritium, for the fusion reaction with deuterium.

Available for download

Examination Of Corrosion Sensor Data From Long-Term Field Exposures

Product Number: 51322-18198-SG

Author: Erica Macha, Andrew Keller, Shengyen Li, James Dante

Publication Date: 2022

$20.00

The current approach to corrosion severity prediction is to use long-term averages of environmental parameters (such as relative humidity, temperature, and pollutants), geographic features (such as coastal proximity), and witness coupon corrosion rates of indicator materials to classify an environment into one of a small number of severity categories. However, recent work has revealed that brief changes in environmental conditions—even those lasting only a few hours—can significantly affect total corrosion damage, and long-term averages of environmental conditions are not sufficient to accurately predict cumulative corrosion damage. To more accurately measure the corrosion damage from these short-term events, corrosion sensors are becoming increasingly popular. The frequent acquisition of data and increased measurement sensitivity are attractive features, however the data from these corrosion sensors is still difficult to interpret in many cases.

Available for download

Examination of Corrosion Sensor Data from Long-Term Field Exposures

Product Number: 51323-19446-SG

Author: James Dante, Shengyen Li, Andrew Keller

Publication Date: 2023

$20.00

To reduce maintenance costs while maintaining safety, different corrosion mitigation strategies have been utilized. In addition to new structural materials and advanced protective coatings, improved maintenance planning approaches, including Condition Based Maintenance (CBM) approaches, have seen growing use over the past decade. One goal of any Condition Based Maintenance (CBM) effort is to use all available on-aircraft data as well as field and depot-based maintenance information to align resources in a timely manner to ensure aircraft safety while reducing maintenance and repair costs.

Available for download

Examination Of IASCC In 304 Stainless Steel Core Shroud From A Commercial Boiling Water Reactor (BWR)

Product Number: ED22-18366-SG

Author: Matthew Olszta, Karen Kruska, Danny Edwards, Daniel Schreiber, Peter Chou

Publication Date: 2022

$20.00

Nuclear reactors inherently operate under extreme environments, and hence the materials and alloys utilized for their design are required to withstand unique conditions. Not only do these materials need to stand up to corrosion at high temperatures, but also in certain components must they resist microstructural and physical property changes due to radiation. Two of the major effects of radiation on reactor alloys and radiation-induced segregation (RIS) and precipitation, which have been observed in reactor pressure vessel (RPV) steels, ferritic-martensitic steels, nickel base alloys, and austenitic stainless steels.

Available for download

Expanding SCC Safe Use Limit of Alloy 718 for Sour HTHP Downhole Applications

Product Number: 51324-20928-SG

Author: L. Zhao; T. Dunne; J.X. Ren; J. Yue; P. Cheng

Publication Date: 2024

$40.00

Nickel alloy UNS N07718 (Alloy 718) is extensively used in the oil and gas industry. However, it is limited by NACE MR0175/ISO15156 which only permits use at a maximum of 200 psi (1.38 MPa) H2S partial pressure at 400°F (204°C). To expand the Stress Corrosion Cracking (SCC) safe use limit of Alloy 718, NACE TM0198 Slow Strain Rate (SSR) testing was performed first to identify an upper H2S limit (i.e., 650 psi [4.48 MPa]). NACE TM0177 C-ring testing subsequently qualified Alloy 718 at this high limit in modified NACE Level VII conditions, and also under 910 psi (6.27 MPa) H2S partial pressure in a simulated field environment (total 15 ksi [103 MPa]) based on equivalent dissolved H2S concentration. This is the highest service H2S limit reported for Alloy 718 and also evidence that validates the effectiveness of dissolved H2S concentration as new sour severity metric for Ni alloy SCC qualification.

Available for download

Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work

Product Number: 51324-20960-SG

Author: Jayson L. Helsel; Robert Lanterman

Publication Date: 2024

$40.00

This paper is an update to “Expected Service Life and Cost Considerations for Maintenance and New Construction Protective Coating Work” by the authors in 2022.1 The paper is designed to assist the coatings engineer or specifier in identifying candidate protective coating systems for typical service environments and provides: 1) commonly used generic coating systems; 2) practical maintenance time for each system and service environment; 3) current material costs; 4) current field and shop painting costs; and 5) guidelines for calculating approximate installed costs of the systems. Guidelines for developing long-term life-cycle costs and number of paintings for the expected life of the structure are also included. The basic elements of economic analysis and justification are addressed together with guidance on the preparation of a Present Value Analysis. Examples are provided to aid the reader in the proper use of the information. Updates to the paper include coating system revisions for atmospheric exposure, new discussion related to maintenance painting strategies and new cost information. Key words: protective coatings, life-cycle costs, coating selection, coating system life, containment costs, industrial maintenance, maintenance painting costs, industrial environments, corrosive, solvent-free, metalizing, galvanizing, Present Value Analysis, installed coating costs.

Available for download

Expected Service Life And Cost Considerations For Maintenance And New Construction Protective Coating Work

Product Number: 51322-17616-SG

Author: Jayson L. Helsel, Robert Lanterman

Publication Date: 2022

$20.00

Major manufacturers of protective coatings, steel fabricators, painting contractors, galvanizers, and end users, were surveyed to identify surface preparation and coating application costs, coating material costs, typical industrial environments and available generic coatings for use within those environments, and expected coating service lives (practical maintenance time).

Available for download

Experimental and Numerical Erosion Pattern Study in a Pulverized Coal Injection Nozzle Geometry

Product Number: 51323-19575-SG

Author: Ann Grue, Lawrence D. Berg, Soroor Karimi

Publication Date: 2023

$20.00

A significant portion of global energy demand is met using coal. Even with developing interest in other energy sources, use of coal to generate electricity is expected to remain steady due to overall rising global electricity needs. Most applications for coal combustion electricity generation utilize pulverized coal (PC) as the fuel.

Available for download

Experimental and Numerical Studies on the Influence of Particle Sizes on Erosion of Elbows in Series in Gas-Solid and Multiphase Flow Conditions

Product Number: 51323-19098-SG

Author: Mazen M. Othayq, Faris S. Bilal, Farzin Darihaki, Ronald E. Vieira, Soroor Karimi, Siamack A. Shirazi

Publication Date: 2023

$20.00

In the oil and gas industry, solid particle erosion is a common challenge in pipelines, flowlines, and fitting components such as elbows. Elbows have been widely used to change the flow direction in industrial flowlines. When erosion occurs due to the impact of solid particles, it leads to significant financial and environmental threats.

AMPP Conference Papers

Association for Materials Protection and Performance