AMPP Store - Products tagged with 'stress corrosion cracking'

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A Statistical Analysis of the Gamma Exponent Model; a New Methodology for Corrosion Assessment of Localized Metal Loss Flaws and Stress Corrosion Cracking in Oil and Gas Pipelines

Product Number: 51321-16368-SG

Author: Colin Scott, PhD

Publication Date: 2021

$20.00

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Advancement in Asset Integrity Management through Digitalized Eddy Current Testing Technology for Corrosion Cracking Inspections

Product Number: 51323-19049-SG

Author: Lutfallah, Muhammed H; Felemban, Tamim O; Alrashidi, Ahmed F; AlSubhi, Yasser S; Fandem, Qasem A; Batiste, Randal S

Publication Date: 2023

$20.00

In the oil and gas industry, solid metal equipment such as pipelines, pressure vessels, heat exchangers and valves are susceptible to surface cracks and discontinuities attributed to cyclic loading, process environment and severe operating conditions. These anomalies affect the safety, structural functionality, reliability, integrity and life cycle of the equipment. They could lead to catastrophic incidents if not detected timely, evaluated, monitored and properly repaired.

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Alloy 182 Models for the Prediction of the Susceptibility to SCC of BMI Nozzle J-welds

Product Number: ED22-17286-SG

Author: Thierry Couvant

Publication Date: 2022

$20.00

Stress Corrosion Cracking (SCC) models are important for engineering and regulatory assessments. The SCC time to the growth of a crack of engineering scale is the main fraction of component life prior to failure and is therefore of significant interest for modeling. However, the stochastic characteristics of early crack development is challenging for model development and validation.

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Ammonia Stress Corrosion Cracking of Admiralty Brass Heat Exchanger Tubes in Refinery Cooling Water System

Product Number: 51324-20970-SG

Author: Sudharsanan Soundararajan

Publication Date: 2024

$40.00

Instrument air (IA) system is one of the critical systems in the utilities section of a refinery complex. IA system of this refinery consists of compressor package and dryer package to supply air to refinery header at 0.9Mpa (128 psi) with dew point less than -20degC (-4degF). The 3 stage compressors have intercoolers with extended plate surface fin type tubes. The metallurgy of the tubes is Admiralty brass SB-111 C44300. In this cooler, compressed air is in the shell side and fresh cooling water on the tube side. All 8 intercoolers in the compressor package leaked in a period of 1 month. A failed sample tube was analyzed using Optical Emission Spectroscopy, Stereo Microscope, SEM/EDS and XRD. This paper discusses the findings and the methodology used to identify the reason for failure as Ammonia Stress Corrosion Cracking. Process parameter analysis revealed that the leak from a recycle gas cooler in Hydrocracker unit as the possible source for ammonia in cooling water system. The full-length tube expansion for plate type fins is the source for residual stress. This paper briefs upon the IOW and the monitoring mechanisms for such mixed metallurgy closed loop cooling water system.

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ANSI/NACE MR0103-2015/ISO 17945-2015, “Petroleum, petrochemical and natural gas industries -- Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments”

Product Number: 21305-SG

Publication Date: 2015

$180.00

HISTORICAL DOCUMENT. Material requirements for resistance to sulfide stress cracking (SSC) in sour refinery process environments (i.e., environments that contain wet hydrogen sulfide [H2S]). AKA "wet H2S cracking".

CORRECTION OF PUBLICATION:

In January 2016, NACE published an incorrect version of ANSI/NACE MR0103/ISO 17945:2015 (Petroleum, petrochemical and natural gas industries — Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments). That document was incorrectly titled ANSI/NACE MR0103/ISO 17495:2016. The erroneous standard was retracted at the time and the NACE Store has the corrected version. NOTE: The contents of both versions of the standard are identical. The only discrepancies are in the title.

Assessing Environmentally Assisted Cracking Of Structural Alloys In Molten Salts

Product Number: ED22-17120-SG

Author: George Young, Jake Quincey, Andrew Brittan, Pit Shulze, Stella Tsotsos, Lars Parrington, Josef Parrington, Anne Demma, Micah Hackett, Samuel Briggs and Julie D. Tucker

Publication Date: 2022

$20.00

The potential for structural alloys to undergo environmentally assisted cracking in molten salts is relatively unexplored due to their limited industrial application. However, fluoride salts are of prime interest to many advanced reactors including the Kairos Power FHR reactors. Table I summarizes literature studies of EAC in molten fluoride salts. For the ten studies shown, seven are for Ni-Mo-Cr family of alloys (INOR-8 / Hastelloy N or variants) that were used in the Molten Salt Reactor Experiment (MSRE), two studies investigate austenitic stainless steels, and there is one report of EAC in oxygen free high conductivity (OFHC) copper.

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Characterization of Stress-Corrosion-Cracking in Plutonium-Bearing Storage Containers

Product Number: 51324-20845-SG

Author: Emmanuel Perez; Roderick E. Fuentes; Michael J. Martínez-Rodríguez; Henry Ajo

Publication Date: 2024

$40.00

The Integrated Surveillance Program, under the Department of Energy, is responsible for the periodic surveillance of storage containers containing plutonium-bearing materials. The container-package consist of a stainless-steel three-layered structure with a convenience can that confines the material, and seal-welded inner and outer cans designed to isolate the materials for up to 50 years with minimal surveillance. The inner-can represents the first layer of material containment, and it should not be breached. During monitoring, corrosion-pitting and suspected stress-corrosion-cracking (SCC) has been identified in some of the inner cans near the weld regions due to the transport of chloride salts and water impurities into the space between the convenience can and the inner can. SCC through wall penetration would result in an undesired increased risk of leakage. An investigation is in progress to identify and characterize corrosion events in the inner-cans to determine the prevalence of corrosion features and the likelihood of a through-wall breach. This document presents a specimen where significant pitting corrosion and cracking was observed in and near the heat affected zone between the can and the lid. Characterization was carried out by Scanning Electron Microscopy (SEM) and 3D-tomography. Tomography was carried out using a Focused Ion Beam (FIB) to mill into the surface of the specimen to map the subsurface topographies of pits and cracks. The study revealed the crack depth and secondary cracks that developed from cracks observed at the surface.

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Chemical Treatment To Mitigate Polythionic Acid SCC Without A Soda-Ash Wash: Laboratory And Plant Experience

Product Number: 51322-17993-SG

Author: B.C. Rollins, K.J. Evans, N. Sutton, J. Esteban

Publication Date: 2022

$20.00

Different refiners have a variety of procedures in place for hydroprocessing reactor and reactor system shutdowns, depending on the scope of the work to be performed during the downtime. If activities are to be performed inside the reactor (e.g. inspection, maintenance, catalyst changeout, etc.) such that the reactor must be opened to air, shutdowns must include steps to address the various hazards. These same steps must also be applied to associated process equipment related to the reactor system susceptible to similar hazards and damage mechanisms.

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Cold Spray for Repair of Nuclear Reactor System Components

Product Number: ED22-17267-SG

Author: Catherine Cmar, Michael Ickes, Arash Parsi

Publication Date: 2022

$20.00

Supersonic particle deposition also known as cold dynamic gas spray, or “Cold Spray” is a materials deposition process. During the cold spray process a gas stream, typically helium or nitrogen, is split into two streams where 90% of the gas is sent to an electric heater and 10% is sent to a powder feeder. The powder feeder contains powder composed of small metallic particles, or blends of metallic and non-metallic particles, ranging from 5 to 100 μm in size.

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Corrosion Behavior Of Welded Austenitic Stainless Steels In Coastal Atmospheric Environment

Product Number: ED22-18359-SG

Author: Mei-Lin Chen, Tsung-Kuang Yeh, Mei-Ya Wang

Publication Date: 2022

$20.00

Austenitic stainless steels (SS) are the candidate materials for dry storage canisters. In general, high corrosion resistance is one of the advantageous properties of austenitic stainless steels. However, austenitic stainless steels are susceptible to chloride induced stress corrosion cracking (CISCC) when three criteria are satisfied: susceptible materials, tensile stress and corrosive environments. Dry storage canisters are located at a coastal site in Taiwan, as a result, canisters are exposed to high concentration of moisture and chloride salts under atmospheric environments.

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Cracking Behavior Of Decommissioned Baffle Plates In Light Water Reactor Environment

Product Number: ED22-17301-SG

Author: Yiren Chen, Bogdan Alexandreanu, Appajosula S. Rao

Publication Date: 2022

$20.00

Most of the core internal components of light water reactors (LWRs) are made of austenitic stainless steels (SSs). Exposed to fast neutron irradiation, reactor core internal components are vulnerable to irradiation-induced or irradiation-enhanced degradations. At LWR-relevant temperatures and irradiation doses, significant microstructural and microchemical changes can take place in SSs, leading to deteriorated mechanical and corrosion properties.

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Deadleg Stress Corrosion Cracking Risks in SS Piping Systems in Refining and Renewable Units

Product Number: 51324-20816-SG

Author: Cathleen Shargay; Garry Jacobs; Shahab Soltaninia

Publication Date: 2024

$40.00

Although the problem of chloride stress corrosion cracking (SCC) of austenitic stainless steel drain lines in hydroprocessing units has been well known for many years, new questions on these deadlegs are arising with the renewable units handling biofuel feeds. Some potential issues are in the hydrodeoxygenation (HDO) units and certain pretreatment units, wherever these units have high pressure SS piping. Many of the hydroprocessing unit case histories of leaks and cracks occurred shortly after startups from turnarounds and were attributed to water not being drained before startup. In contrast, some of the renewable units may have a risk of water condensing in deadlegs even during normal operation. The hydroprocessing unit case histories have been compiled to help to define the conditions, such as main line operating temperature and pressure which contribute to SCC in the deadlegs. The process chemistry, especially water content, oxygen and pH differences between the refining and renewable units are reviewed, and material recommendations are given for drain lines and other deadlegs in each type of unit.

Products tagged with 'stress corrosion cracking'

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