Download or read book A Mathematical Model of Crevice and Pitting Corrosion written by S. M. Sharland and published by . This book was released on 1985 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A mathematical model of crevice and pitting corrosion written by S. M. Sharland and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A mathematical model of crevice and pitting corrosion written by S. M. Sharland and published by . This book was released on 1985 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Modeling of Crevice and Pitting Corrosion Processes in Relation to Corrosion of Radioactive Waste Containers written by and published by . This book was released on 1989 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mathematical and numerical model for evaluation of crevice and pitting corrosion in radioactive waste containers is presented. The model considers mass transport, mass transfer at the metal/solution interface, and chemical speciation in the corrosion cavity. The model is compared against experimental data obtained in artificial crevices. Excellent agreement is found between modeled and experimental values. The importance of full consideration of complex ion formation in the aqueous solution is emphasized and illustrated. 10 refs., 5 figs.
Download or read book Gutachten und Analyse ber das Nat rliche Bitterwasser von Birmenstorf Kanton Aargau Schweiz written by and published by . This book was released on 1888 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tutorials in Electrochemical Engineering mathematical Modeling written by Robert F. Savinell and published by The Electrochemical Society. This book was released on 1999 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Tests and Standards written by Robert Baboian and published by ASTM International. This book was released on 2005 with total page 887 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling Aqueous Corrosion written by Kenneth R. Threthewey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Design and Modeling of Mechanical Systems VI written by Mnaouar Chouchane and published by Springer Nature. This book was released on with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Compendium of Mechanical Limit States written by and published by . This book was released on 1996 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Passivity of Metals and Semiconductors written by Michael Brian Ives and published by The Electrochemical Society. This book was released on 2001 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Index for the Crevice Corrosion Resistance of Materials written by and published by . This book was released on 1993 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies have revealed the crucial role played by the macro corrosion cell (potential coupling between the inside and outside of a cavity) in crevice and pitting corrosion. It was found that acidification and the existence of chloride ions in the local cell are not the sole and necessary conditions for localized corrosion to occur, and that their accelerating effects on crevice corrosion and pit growth can be explained within the framework of the macro cell (the IR drop mechanism). Upon analysis of the results of the experiments, quantitative modeling, and the literature, a new characteristic parameter -- the critical distance into the crevice, d(sub c) -- has been suggested for indexing the crevice corrosion resistance of a material under specified conditions. The advantages of using d(sub c) as the index of the crevice corrosion resistance are as follows: (1) it may be obtained through experiment and may also be estimated through computational approaches; (2) it has a distinct and straightforward physical meaning; (3) it may be employed in engineering design; and (4) it is a single parameter that can reflect the integrated influence of several factors known to affect the crevice corrosion resistance of a material from past practical experience and research work. Preliminary work has shown good agreement between the measured and the computed values of d(sub c). The experimental technique and the principle of the mathematical approach to obtain d(sub c) are described.
Download or read book Mechanics of Structures and Materials XXIV written by Hong Hao and published by CRC Press. This book was released on 2019-08-08 with total page 1966 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics of Structures and Materials: Advancements and Challenges is a collection of peer-reviewed papers presented at the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24, Curtin University, Perth, Western Australia, 6-9 December 2016). The contributions from academics, researchers and practising engineers from Australasian, Asia-pacific region and around the world, cover a wide range of topics, including: • Structural mechanics • Computational mechanics • Reinforced and prestressed concrete structures • Steel structures • Composite structures • Civil engineering materials • Fire engineering • Coastal and offshore structures • Dynamic analysis of structures • Structural health monitoring and damage identification • Structural reliability analysis and design • Structural optimization • Fracture and damage mechanics • Soil mechanics and foundation engineering • Pavement materials and technology • Shock and impact loading • Earthquake loading • Traffic and other man-made loadings • Wave and wind loading • Thermal effects • Design codes Mechanics of Structures and Materials: Advancements and Challenges will be of interest to academics and professionals involved in Structural Engineering and Materials Science.
Download or read book Species dependent Modeling of Crevice Corrosion Systems written by Aaron Joseph Stenta and published by . This book was released on 2015 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: A species dependent, one-dimensional mathematical model is developed to describe localized crevice corrosion applications. An asymptotic procedure taking advantage of disparity in length scales is used to derive the governing system. The equations are rotated to eliminate bulk reactions, and formulate a boundary value problem for numerical solution. This research extends previous 1D well-mixed approaches [1, 2] to non well-mixed electrolytes, and explores its capabilities. To create this concentration dependent crevice corrosion model with damage evolution we propose: (i) 1D simplified configurations that have government and industrial corrosion applications; (ii) multiple formulations of 1D rotated systems that simplify the complex system of higher order nonlinear equations; (iii) a numerical procedure that is efficient and open source; (iv) the use of standard practice experimental inputs to predict Ni-625 crevice corrosion metal dissolution that validates experimental time history damage profiles; (v) a COMSOL 2D time-dependent finite element model to assist and validate the 1D modeling efforts; (vi) to benchmark the numerical procedure with analytical solutions and known literature; (vii) localized modeling insight to the scientific corrosion community that may allow for the development of commercially available, user-friendly software packages, further experimental efforts, and increased scientific knowledge of corrosion phenomena; and (viii) a generalized modeling procedure and solution for application to additional material systems. The Ni-625 modeling effort includes a three-stage model to determine the spatial and temporal potential, current, ionic species, and damage profiles in seawater crevice corrosion applications. Stage one is oxygen depletion inside the crevice, stage two is the development of a critical crevice solution (induction stage), and stage three is long-term agressive dissolution that is consistent with a nearly well mixed, IR drop controlled crevice system. In stage one deoxygenation allows separation of the anodic and cathodic sites. In stage two local initiation occurs at the crevice tip that diffuses towared the crevice mouth. Minimal dissolution occurs in stage two and complete initiation occurs when the total anodic current is such that the critical IR drop is observed. In stage three the crevice is saturated at or near the critical crevice solution and metal salt precipitates allow stable crevice corrosion propagation. The key inputs to the three stage model are concentration dependent polarization curves and non-equilibrium hydrolysis reaction data. The analytical solutions and 2D COMSOL modeling efforts are used to validate the proposed 1D approach for simplified systems leading up to the complex Ni-625 system. All results agree under a thin-film approximation. Further, we show that with appropriate experimental input data, and knowledge from solution of the species-dependent system, the damage evolution well-mixed model provides comparable results.
Download or read book Corrosion and Corrosion Prevention of Low Density Metals and Alloys written by B. A. Shaw and published by The Electrochemical Society. This book was released on 2001 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Simulation of Damage Evolution in Crevice Corrosion written by Matthew Douglas Brackman and published by . This book was released on 2012 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: While much progress has been made in transport models of crevice corrosion, damage evolution of the metal surface during this process has received less attention. This work focuses on mathematical modeling and simulation of the damage evolution to provide quantitative descriptions of the time varying shape of the corroded surface. The base model uses the potentiodynamic polarization data for Nickel (Ni) in sulfuric acid and assumes well-mixed solution chemistry inside and outside the crevice, consistent with a pure potential drop model and experimental/modeling work in the literature. Asymptotic analysis is used to simplify the governing equations and develop an evolution equation for the Ni surface. Metal surface shapes, potential profiles and other characteristic features of the corrosion are predicted. Predicted results agree with with the published laboratory investigations. Since the model calculates the true crevice gap in real time, it provides new insights into the movement of the peak current density, potential drop down the crevice length and the critical length to gap ratio necessary to propogate [propagate] potential drop controlled crevice corrosion.
Download or read book Shreir s Corrosion written by and published by Elsevier. This book was released on 2009-02-27 with total page 3652 pages. Available in PDF, EPUB and Kindle. Book excerpt: This four-volume reference work builds upon the success of past editions of Elsevier’s Corrosion title (by Shreir, Jarman, and Burstein), covering the range of innovations and applications that have emerged in the years since its publication. Developed in partnership with experts from the Corrosion and Protection Centre at the University of Manchester, Shreir’s Corrosion meets the research and productivity needs of engineers, consultants, and researchers alike. Incorporates coverage of all aspects of the corrosion phenomenon, from the science behind corrosion of metallic and non-metallic materials in liquids and gases to the management of corrosion in specific industries and applications Features cutting-edge topics such as medical applications, metal matrix composites, and corrosion modeling Covers the benefits and limitations of techniques from scanning probes to electrochemical noise and impedance spectroscopy
