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Nuclear Corrosion Modeling

Nuclear Corrosion Modeling Book
Author : Roy Castelli
Publisher : Butterworth-Heinemann
Release : 2009-07-22
ISBN : 9781856179348
Language : En, Es, Fr & De

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Book Description :

Corrosion in nuclear power plants cause reductions in efficiency and increases in deposit build-up on plant surfaces, making for expensive maintentance and potential radiological health hazards. This book guides studies to predict and minimize corrosion, thus making nuclear power safer and more cost effective. Too often, reliance on empirical models and on-site testing of existing plants makes study and prediction of corrosive effects in nuclear reactors into a pricey and lengthy process. Introducing the experimental procedures, set up, sample preparation and computer modeling suggested in this book will save precious time and resources in a field where the significant time and expense to get and keep plants on-line are two of the chief concerns preventing broader commerical viability. * The only book to focus exclusively on preventing nuclear corrosion * Uses computer modelling to tie together chemical engineering, civil engineering, corrosion science, and nuclear engineering into a cohesive solution to a vexing nucelar problem * Includes all fundamental equations, example data sets and experimental techniques

Nuclear Corrosion Modeling

Nuclear Corrosion Modeling Book
Author : Roy Castelli
Publisher : Unknown
Release : 2010
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Corrosion in nuclear power plants cause reductions in efficiency and increases in deposit build-up on plant surfaces, making for expensive maintentance and potential radiological health hazards. This book guides studies to predict and minimize corrosion, thus making nuclear power safer and more cost effective. Too often, reliance on empirical models and on-site testing of existing plants makes study and prediction of corrosive effects in nuclear reactors into a pricey and lengthy process.

Nuclear Corrosion Science and Engineering

Nuclear Corrosion Science and Engineering Book
Author : Damien FERON
Publisher : Elsevier
Release : 2012-02-21
ISBN : 085709534X
Language : En, Es, Fr & De

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Book Description :

Corrosion of nuclear materials, i.e. the interaction between these materials and their environments, is a major issue for plant safety as well as for operation and economic competitiveness. Understanding these corrosion mechanisms, the systems and materials they affect, and the methods to accurately measure their incidence is of critical importance to the nuclear industry. Combining assessment techniques and analytical models into this understanding allows operators to predict the service life of corrosion-affected nuclear plant materials, and to apply the most appropriate maintenance and mitigation options to ensure safe long term operation. This book critically reviews the fundamental corrosion mechanisms that affect nuclear power plants and facilities. Initial sections introduce the complex field of nuclear corrosion science, with detailed chapters on the different types of both aqueous and non aqueous corrosion mechanisms and the nuclear materials susceptible to attack from them. This is complemented by reviews of monitoring and control methodologies, as well as modelling and lifetime prediction approaches. Given that corrosion is an applied science, the final sections review corrosion issues across the range of current and next-generation nuclear reactors, and across such nuclear applications as fuel reprocessing facilities, radioactive waste storage and geological disposal systems. With its distinguished editor and international team of expert contributors, Nuclear corrosion science and engineering is an invaluable reference for nuclear metallurgists, materials scientists and engineers, as well as nuclear facility operators, regulators and consultants, and researchers and academics in this field. Comprehensively reviews the fundamental corrosion mechanisms that affect nuclear power plants and facilities Chapters assess different types of both aqueous and non aqueous corrosion mechanisms and the nuclear materials susceptible to attack from them Considers monitoring and control methodologies, as well as modelling and lifetime prediction approaches

Corrosion Induced by Low Energy Radionuclides

Corrosion Induced by Low Energy Radionuclides Book
Author : Gilbert Bellanger
Publisher : Elsevier
Release : 2004-12-18
ISBN : 0080530036
Language : En, Es, Fr & De

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Book Description :

Nuclear power plants emit radiation and particles across a range of energies. This radiation can cause corrosion to occur in critically important parts of the plant, which can lead to efficiency and safety problems. Gamma rays and neutrons have the highest energies and can break the metal bonds in interior metallic structures causing damage quickly and in easily monitored ways. Consequently these types of radiation and the best alloys to use to mitigate their effects have been extensively researched and their findings applied. However, the same is not true of low energy radiation which effects metal structures in a different way but can still cause appreciable and expensive corrosion. Low energy radiation degrades the passive oxide layers that protect metals. Without this protective layer the metals are easily corroded. This book uses tritium and tritiated water as models to describe the effects of low energy radiation on the corrosion of metals in these environments. Comprehensive coverage of the fields of liquid and gas flow, heat exchange, gas diffusion in materials, and of materials resistance to corrosion is ensures the reader has a full understanding of how these processes effect corrosion in nuclear installations. Such an understanding is essential for the efficient and safe running of all modern plant that uses radioactive material and this book is a critical reference tool for anyone involved in the nuclear power industry or metals research. * Unique coverage of low energy radiation and its corrosive effects in nuclear installations * Provides coverage of basic scientific principles contributing to corrosion * An essential reference for the safe and efficient construction and operation of nuclear installations * Applications in power generation, fuel reprocessing, military and civilian applications. * The first book to present detailed analysis of nuclear corrosion by low energy nuclides * The most complete book available for those serious about understanding corrosion in all its aspects * Keeping you at pace with the new methods that are changing the concept of corrosion in the nuclear industry

Mechanistic Modelling of the Corrosion Behaviour of Copper Nuclear Fuel Waste Containers

Mechanistic Modelling of the Corrosion Behaviour of Copper Nuclear Fuel Waste Containers Book
Author : Fraser King,Whiteshell Laboratories
Publisher : Pinawa, Man. : Whiteshell Laboratories
Release : 1996
ISBN : 9780660166582
Language : En, Es, Fr & De

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Book Description :

Download Mechanistic Modelling of the Corrosion Behaviour of Copper Nuclear Fuel Waste Containers book written by Fraser King,Whiteshell Laboratories, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Computer Modeling of Nuclear Waste Storage Canister Corrosion

Computer Modeling of Nuclear Waste Storage Canister Corrosion Book
Author : Anonim
Publisher : Unknown
Release : 1979
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Current plans for nuclear waste disposal include placing the waste in a canister to isolate it from the repository environment for 1000 years. Corrosion prediction techniques are currently inadequate to quarantee the canister performance over this length of time. We are attempting to better predict the corrosion process with the help of computer modeling. We developed a program to calculate anodic and cathodic polarization curves using Tafel slopes, equilibrium exchange current densities, and other electrochemical parameters obtained from the experimental corrosion literature. The model generates and displays polarization curves for different values of environmetal parameters such as temperature, pH, and concentrations of pertinent species in the vicinity of the canister material. For the case of uniform corrosion in acidic media, our model predicts corrosion rates in fair agreement with literature values.

Performance Assessment of Concrete Structures and Engineered Barriers for Nuclear Applications

Performance Assessment of Concrete Structures and Engineered Barriers for Nuclear Applications Book
Author : Valérie L'Hostis,Robert Gens
Publisher : Springer
Release : 2016-09-06
ISBN : 9402409041
Language : En, Es, Fr & De

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Book Description :

The main outcomes of RILEM TC-226-CNM are summarized in this book. Key input was provided by researchers from countries that are main contributors in the R&D, design, construction, operation, and regulation of waste nuclear reinforced concrete facilities. Nuclear power plants and many of the facilities and structures used for the management of radioactive waste materials generated by the fuel cycle use concrete in their construction. RILEM TC 226 CNM covered several areas including functional and performance requirements for concrete structures; degradation processes; phenomenological modelling, field experiences, tests approaches, instrumentation and monitoring methods dedicated to performance assessments; service-life models; aging Management of Nuclear Power Plants, repair techniques; codes and standards specific to radioactive waste facilities.

Micro Continuum Modeling of Nuclear Waste Glass Corrosion

Micro Continuum Modeling of Nuclear Waste Glass Corrosion Book
Author : Anonim
Publisher : Unknown
Release : 2014
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Micro Continuum Modeling of Nuclear Waste Glass Corrosion book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Modelling Aqueous Corrosion

Modelling Aqueous Corrosion Book
Author : Kenneth R. Threthewey,Pierre R. Roberge
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 9401111766
Language : En, Es, Fr & De

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Book Description :

All significant studies agree that aqueous corrosion continues to cost nations dearly in almost every area of technological endeavour. Over the past ten years, microcomputers have facilitated an explosion in the power of modelling as a technique in science and engineering. In corrosion they have enabled better understanding of polarization curves, they have transformed the scope of electrochemical impedance measurements and they have placed a large range of electrochemistry at the fingertips of the corrosion scientist. This book focuses on the models, rather than the computing, which have been made possible during the past decade. Aimed at all those with an interest in corrosion and its control, the book draws together the range of new modelling strands, suggests new avenues of approach and generates further momentum for improvements to corrosion management, whether by increased understanding of atomistic processes or by control of large plant.

The Corrosion of Nuclear Waste Glasses in a Clay Environment

The Corrosion of Nuclear Waste Glasses in a Clay Environment Book
Author : Anonim
Publisher : Unknown
Release : 1997
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download The Corrosion of Nuclear Waste Glasses in a Clay Environment book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Introduction to Peridynamics and Thoughts on Corrosion Modeling

Introduction to Peridynamics and Thoughts on Corrosion Modeling Book
Author : Anonim
Publisher : Unknown
Release : 2014
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Introduction to Peridynamics and Thoughts on Corrosion Modeling book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Electrochemical and modelling studies on simulated spent nuclear fuel corrosion under permanent waste disposal conditions

Electrochemical and modelling studies on simulated spent nuclear fuel corrosion under permanent waste disposal conditions Book
Author : Nazhen Liu
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The safety assessment models for the deep geological disposal of spent nuclear fuel require a fundamental understanding of the corrosion of spent fuel in a failed waste container. The overall research goal of this project is to investigate the corrosion of simulated spent fuel under permanent disposal conditions, using both model simulations and experimental investigations. A model for fuel corrosion has been expanded to determine the relative importance of radiolytic hydrogen and hydrogen from corrosion of the steel vessel in suppressing fuel corrosion. It was shown that, for CANDU (CANada Deuterium Uranium) fuel with moderate in-reactor burnup, only micromolar concentrations of hydrogen from steel corrosion are required to completely suppress fuel corrosion. In a partially closed system (i.e., within cracks in the fuel) radiolytic hydrogen alone can suppress corrosion to a negligible level. The model was validated by comparing the calculated corrosion rates with published measurements. Agreement between calculated and measured rates indicated that corrosion is controlled by the rate of radiolytic production of oxidants, in particular hydrogen peroxide, irrespective of the reactivity of the fuel. Experimentally, the influence of rare earth doping on the reactivity of UO2 was investigated. For REIII-doped UO2, the onset of matrix dissolution was accompanied by the enhanced oxidation of the matrix to UIV1{u2212}2xUV2xO2+x. This can be attributed to the onset of tetragonal lattice distortions as oxidation proceeds which leads to the clustering of defects, enhanced diffusion of OI (interstitial oxygen)to deeper locations and destabilization of the fluorite lattice. A further investigation of the doping effect was performed on a series of (U1{u2212}yGdy)O2 materials (y = 0, 0.01, 0.03, 0.05, 0.07 and 0.10). Overall the increase in doping up to 10% does not exert a major influence on reactivity possibly due to the competition between an increase in the number of (Ov)s (oxygen vacancy) and a contraction in the lattice constant.

Modelling the Behaviour of Corrosion Products in the Primary Heat Transfer Circuits of Pressurised Water Reactors

Modelling the Behaviour of Corrosion Products in the Primary Heat Transfer Circuits of Pressurised Water Reactors Book
Author : R S. Rodcliffe,M V. Polley,E W. Thornton
Publisher : Unknown
Release : 1985
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Modelling the Behaviour of Corrosion Products in the Primary Heat Transfer Circuits of Pressurised Water Reactors book written by R S. Rodcliffe,M V. Polley,E W. Thornton, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Selection and Implementation of Deterministic and Probabilistic Models for the Prediction of Stress Corrosion Cracking in Used Nuclear Fuel Containment Material

Selection and Implementation of Deterministic and Probabilistic Models for the Prediction of Stress Corrosion Cracking in Used Nuclear Fuel Containment Material Book
Author : Sara Elizabeth Ferry
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Stainless steel canisters encased in vented concrete overpacks are used to store used nuclear fuel at interim spent fuel storage installations in the United States. These storage systems are exposed to the elements. There is concern that, over time, a deliquesced salt film could develop on the stainless steel canister. Such a film can create a corrosive environment in stainless steels. If a stress is present on or in then material, stress corrosion cracking (SCC) could be a possibility. Because the canister welds are not stress-relieved in order to avoid sensitization of the steel, residual stresses are expected to be present in the canisters. Thus, there is interest in determining the likelihood that (a) a sufficiently corrosive film develops on a stainless steel used fuel canister (b) there are sufficiently high stresses in the material at the location of the corrosive film (c) SCC initiates and (d) the crack propagates through the canister wall, resulting in canister failure. This thesis begins with the assumption that a corrosive film has developed on the canister surface, and pits have begun to initiate. It investigates various methods of modeling SCC in the canister wall after the point of corrosion pit initiation. An extensive literature review was carried out in order to understand the different SCC models that currently exist in the literature. A figure-of-merit was developed to decide which models were the most likely to be helpful to the modeling of SCC in used fuel canisters. The figure-of-merit was then used to select the most promising models. These models were then used to write [email protected] simulations that could be used to predict time-to-failure in canisters due to SCC once corrosion pits have begun to grow. The results of these simulations are then considered and compared, and used to inform recommendations for future development of a useful predictive model of SCC in used fuel canisters.

Electrochemical and Computational Modelling Studies on Spent Nuclear Fuel Dissolution and the Effect of Corrosion Product Deposits on UO2 Corrosion

Electrochemical and Computational Modelling Studies on Spent Nuclear Fuel Dissolution and the Effect of Corrosion Product Deposits on UO2 Corrosion Book
Author : Yannick A. Beauregard
Publisher : Unknown
Release : 2011
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Electrochemical and Computational Modelling Studies on Spent Nuclear Fuel Dissolution and the Effect of Corrosion Product Deposits on UO2 Corrosion book written by Yannick A. Beauregard, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

The Corrosion of Nuclear Waste Glasses in a Clay Environment

The Corrosion of Nuclear Waste Glasses in a Clay Environment Book
Author : K. Lemmens,Commission of the European Communities. Directorate-General for Science, Research, and Development,Europäische Kommission Generaldirektion Wissenschaft, Forschung und Entwicklung
Publisher : Unknown
Release : 1996
ISBN : 9789282791929
Language : En, Es, Fr & De

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Book Description :

Download The Corrosion of Nuclear Waste Glasses in a Clay Environment book written by K. Lemmens,Commission of the European Communities. Directorate-General for Science, Research, and Development,Europäische Kommission Generaldirektion Wissenschaft, Forschung und Entwicklung, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

JSS Project Phase V

JSS Project Phase V Book
Author : Anonim
Publisher : Unknown
Release : 1988
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download JSS Project Phase V book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Spent Nuclear Fuel and Its Corrosion Products

Spent Nuclear Fuel and Its Corrosion Products Book
Author : Anonim
Publisher : Unknown
Release : 2013
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Spent Nuclear Fuel and Its Corrosion Products book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Stress Corrosion Cracking of Nickel Based Alloys in Water cooled Nuclear Reactors

Stress Corrosion Cracking of Nickel Based Alloys in Water cooled Nuclear Reactors Book
Author : Damien Feron,Roger W Staehle
Publisher : Woodhead Publishing
Release : 2016-01-30
ISBN : 0081000626
Language : En, Es, Fr & De

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Book Description :

Stress Corrosion Cracking of Nickel Based Alloys in Water-Cooled Nuclear Reactors: The Coriou Effect presents the latest information on brittle failure of metals in corrosive chemical environments under the influence of tensile stresses. Nickel alloys are more resistant to SCC as well as high temperatures and have been widely used in more challenging environments such as nuclear power plants. However, these alloys can suffer SCC under certain conditions, resulting in component failure. A key figure in understanding the mechanisms of SCC in nickel alloys in water-cooled nuclear reactors is Henri Coriou of the CEA, France’s leading center for nuclear research. This book assesses his work in the context of the latest research on SCC in nickel alloys in nuclear power plants. Up-to-date reviews of recent research findings from leading experts in the field Authoritative and comprehensively reviewed by the Working Party 4 on Nuclear Corrosion Showcases the excellent quality and technical accomplishments of Henri Coriou and CEA

Electrochemical Corrosion Studies for Modeling Metallic Waste Form Release Rates

Electrochemical Corrosion Studies for Modeling Metallic Waste Form Release Rates Book
Author : Anonim
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The isotope 99Tc is an important fission product generated from nuclear power production. Because of its long half-life (t1/2 = 2.13.105 years) and beta-radiotoxicity ([beta]-= 292 keV), it is a major concern in the long-term management of spent nuclear fuel.1 In the spent nuclear fuel, Tc is present as an alloy with Mo, Ru, Rh, and Pd called the epsilon-phase, the relative amount of which increases with fuel burn-up.2 In some separation schemes for spent nuclear fuel, Tc would be separated from the spent fuel and disposed of in a durable waste form.3 Technetium waste forms under consideration include metallic alloys, oxide ceramics and borosilicate glass.4, 5 In the development of a metallic waste form, after separation from the spent fuel, Tc would be converted to the metal, incorporated into an alloy and the resulting waste form stored in a repository.6 Metallic alloys under consideration include Tc-Zr alloys, Tc-stainless-steel alloys and Tc- Inconel alloys (Inconel is an alloy of Ni, Cr and iron which is resistant to corrosion). To predict the long term behavior of the metallic Tc waste form, understanding the corrosion properties of Tc metal and Tc alloys in various chemical environments is needed but efforts to model the behavior of Tc metallic alloys are limited. 7 One parameter that should also be considered in predicting the long-term behavior of the Tc waste form, is the ingrowth of stable Ru that occurs from the radioactive decay of 99Tc (99Tc "99Ru + [beta]- ). After a geological period of time, significant amount of Ru will be present in the Tc and may affect its corrosion properties. Studying the effect of Ru on the corrosion behavior of Tc is also of importance.