Identification Of Crevice Corrosion In Astm Grade 12 Titanium In Simulated Rock Salt Brine At 150c

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Identification of Crevice Corrosion in the Titanium Alloy TiCode-12 in Simulated Rock Salt Brine at 150°C. [Ti-0. 3Mo-0. 8Ni].

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Identification of Crevice Corrosion in the Titanium Alloy TiCode-12 in Simulated Rock Salt Brine at 150°C. [Ti-0. 3Mo-0. 8Ni]. by :

Download or read book Identification of Crevice Corrosion in the Titanium Alloy TiCode-12 in Simulated Rock Salt Brine at 150°C. [Ti-0. 3Mo-0. 8Ni]. written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: TiCode-12 (Ti-0.3Mo-0.8Ni) is a prime corrosion-resistant material for high-level nuclear-waste containers which will be emplaced in mined geologic repositories such as those in rock salt. The crevice corrosion behavior of this alloy was investigated in simulated rock salt brine solutions at a temperature of 150°C. A distinct corrosion product with a range of interference colors was observed in a mechanically simulated crevice after two to four-weeks' exposure. Low pH accelerated the reaction rate and deaerated solutions give less corrosion than aerated ones. Also, increasing specimen size, decreasing crevice gap, and preoxidation of the cathodic area gave more voluminous corrosion products inside the crevice. High temperature did not necessarily accelerate crevice corrosion. These results are consistent with those expected from macroscopic concentration cell formation accompanied by oxygen depletion, potential drop, and acidification inside the crevice. TEM and SEM techniques were extensively utilized to identify the film formed inside the crevice at each stage of the corrosion process. Based on the study, and pH and potential measurements inside the crevice of commercially pure titanium done by other workers, a mechanism for crevice corrosion in TiCode-12 has been developed. It involves the initial formation of compact anatase crystals inside the crevice. As the macroscopic cell develops further, it is postulated that either the anatase form of TiO2 will transform to the lower oxide Ti3O5 and to the rutile form of TiO2, or titanium dissolves into the solution after the breakdown of the protective film and subsequent hydrolysis takes place to form the lower oxide and the rutile form of TiO2. The role of alloying elements (Mo and Ni) and dissolved solutes are discussed with respect to these postulations. 10 figures, 3 tables.

Prediction of Long Term Crevice Corrosion and Hydrogen Embrittlement Behavior of ASTM Grade-12 Titanium

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Prediction of Long Term Crevice Corrosion and Hydrogen Embrittlement Behavior of ASTM Grade-12 Titanium by :

Download or read book Prediction of Long Term Crevice Corrosion and Hydrogen Embrittlement Behavior of ASTM Grade-12 Titanium written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Crevice corrosion and hydrogen embrittlement are potential failure modes of Grade-12 titanium high-level nuclear waste containers emplaced in rock salt repositories. A method is presented to estimate the environment domains for which immunity to these failure modes will exist for periods of hundreds of years. The estimation is based on the identification and quantification of mechanisms involved. Macroscopic concentration cell formation is responsible for crevice corrosion. The cell formation is accompanied by oxygen depletion, potential drop, anion accumulation and acidification inside the crevice. This process is quantified by simple mass balance equations which show that the immunity domain is a function of the time the container is exposed to the corrosion environment. Strain induced hydride formation is responsible for hydrogen assisted crack initiation. A simple model for slow crack growth is developed using data on growth rates measured at various temperatures. The parameters obtained in the model are used to estimate the threshold stress intensity and hydrogen solubility limit in the alloy at infinite container service time. This value gives a crack size below which container failure will not occur for a given applied stress and hydrogen concentration, and a hydrogen concentration limit at a given stress intensity. 37 references, 5 figures, 4 tables.

A Technique for Characterizing Crevice Corrosion Under Hydrothermal Conditions

Author : T-M Ahn
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis A Technique for Characterizing Crevice Corrosion Under Hydrothermal Conditions by : T-M Ahn

Download or read book A Technique for Characterizing Crevice Corrosion Under Hydrothermal Conditions written by T-M Ahn and published by . This book was released on 1985 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique was developed to monitor crevice corrosion of Grade-12 titanium in a high magnesium synthetic brine under hydrothermal conditions. The current between the cathode and anode and the potential of the whole crevice assembly provide information on the various stages of corrosion. Occasionally, the decoupled potential of the cathode and anode are measured to give supporting information about the crevice conditions. A parallel test is run on a specimen that has small wells to collect crevice solution whose pH is determined at room temperature.

Comparison of ASTM F2129 and ASTM F746 for Evaluating Crevice Corrosion

Author : Shiril Sivan
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Comparison of ASTM F2129 and ASTM F746 for Evaluating Crevice Corrosion by : Shiril Sivan

Download or read book Comparison of ASTM F2129 and ASTM F746 for Evaluating Crevice Corrosion written by Shiril Sivan and published by . This book was released on 2019 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crevice corrosion is one of the major mechanisms that drives implant failure in orthopedic devices that have modular interfaces. Despite the prevalence of crevice corrosion in modular interfaces, very little is known with regards to the susceptibility of different material combinations to participate in crevice corrosion. In this study, we compare two electrochemical methods, ASTM F2129,Standard Test Method for Conducting Cyclic Potentiodynamic Polarization Measurements to Determine the Corrosion Susceptibility of Small Implant Devices, and a modified version of ASTM F746,Standard Test Method for Pitting or Crevice Corrosion of Metallic Surgical Implant Materials, in their ability to induce crevice corrosion. Four commonly used metals, 316 stainless steel, commercially pure titanium (Ti grade 2), Ti-6Al-4V (Ti grade 5), and cobaltchromiummolybdenum per ASTM F1537,Standard Specification for Wrought Cobalt-28Chromium-6Molybdenum Alloys for Surgical Implants (UNS R31537, UNS R31538, and UNS R31539), were used to form crevices with a rod and washer combination. As a control, the metal rod materials were tested alone in the absence of crevices using ASTM F2129 and the modified ASTM F746 method. As another control to determine if crevices formed with polymeric materials would influence crevice corrosion susceptibility, experiments were also conducted with metal rods and polytetrafluorethylene washers. Our results revealed more visible corrosion after ASTM F2129 than ASTM F746. Additionally, ASTM F746 was found to falsely identify crevice corrosion per the critical pitting potential when visual inspection found no evidence of crevice corrosion. Hence, ASTM F2129 was found to be more effective overall at evaluating crevice corrosion compared to ASTM F746.

Survey of Literature on Crevice Corrosion (1979-1998)

Author : F. P. IJsseling
Publisher : Woodhead Publishing Limited
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Survey of Literature on Crevice Corrosion (1979-1998) by : F. P. IJsseling

Download or read book Survey of Literature on Crevice Corrosion (1979-1998) written by F. P. IJsseling and published by Woodhead Publishing Limited. This book was released on 2000 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crevice corrosion is a complex and technically interesting corrosion mechanism but its commercial significance should not be ignored. This survey, the most complete overview of crevice corrosion available today, covers many alloys which can suffer crevice attack but focuses mainly on stainless steels. The survey covers mechanisms, test methods and results, practical experience, protective measures and monitoring.

Crevice Corrosion Behaviour of Titanium Grades-2 and -12 in Hot Aqueous Chloride Solution-- : the Effect of Chloride Concentration

Author : Whiteshell Laboratories
Publisher : Pinawa, Man. : Whiteshell Laboratories
ISBN 13 : 9780660164694
Total Pages : 34 pages
Book Rating : 4.1/5 (646 download)

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Book Synopsis Crevice Corrosion Behaviour of Titanium Grades-2 and -12 in Hot Aqueous Chloride Solution-- : the Effect of Chloride Concentration by : Whiteshell Laboratories

Download or read book Crevice Corrosion Behaviour of Titanium Grades-2 and -12 in Hot Aqueous Chloride Solution-- : the Effect of Chloride Concentration written by Whiteshell Laboratories and published by Pinawa, Man. : Whiteshell Laboratories. This book was released on 1996 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technique for Characterizing Crevice Corrosion Under Hydrothermal Conditions

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Technique for Characterizing Crevice Corrosion Under Hydrothermal Conditions by :

Download or read book Technique for Characterizing Crevice Corrosion Under Hydrothermal Conditions written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The current/potential results show that the crevice corrosion incubation period for a Grade-12 titanium crevice formed between two Teflon plates is about two days at 150°C. Optical and SEM observations show that the corrosion starts as isolated pitting which spreads along the surface as shallow pits. The corrosion conditions change significantly as the TiO2 corrosion product fills the crevice, and the rate of corrosion may be greatly reduced after several days. The rate of crevice corrosion of commercial purity (Grade-2) titanium under similar consitions is approximately three orders of magnitude higher. In this case, active dissolution of metal starts during the initial heating of the autoclave and the incubation period is negligible.

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 1554 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1982-10 with total page 1554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High Performance Stainless Steels

Author : Curtis W. Kovach
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (223 download)

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Book Synopsis High Performance Stainless Steels by : Curtis W. Kovach

Download or read book High Performance Stainless Steels written by Curtis W. Kovach and published by . This book was released on 2000 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Corrosion in the Petrochemical Industry

Author : Linda Garverick
Publisher : ASM International
ISBN 13 : 9780871705051
Total Pages : 524 pages
Book Rating : 4.7/5 (5 download)

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Book Synopsis Corrosion in the Petrochemical Industry by : Linda Garverick

Download or read book Corrosion in the Petrochemical Industry written by Linda Garverick and published by ASM International. This book was released on 1994-01-01 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive collection of peer-reviewed data and information on corrosion in the petroleum, petrochemical, and chemical processing industries from a number of ASM International publications. The principal sources are Corrosion, Volume 13, and Failure Analysis and Prevention, Volume 11 of ASM H

Failure Analysis of Heat Treated Steel Components

Author : Lauralice de Campos Franceschini Canale
Publisher : ASM International
ISBN 13 : 1615030980
Total Pages : 651 pages
Book Rating : 4.6/5 (15 download)

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Book Synopsis Failure Analysis of Heat Treated Steel Components by : Lauralice de Campos Franceschini Canale

Download or read book Failure Analysis of Heat Treated Steel Components written by Lauralice de Campos Franceschini Canale and published by ASM International. This book was released on 2008 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nickel, Cobalt, and Their Alloys

Author : Joseph R. Davis
Publisher : ASM International
ISBN 13 : 0871706857
Total Pages : 450 pages
Book Rating : 4.8/5 (717 download)

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Book Synopsis Nickel, Cobalt, and Their Alloys by : Joseph R. Davis

Download or read book Nickel, Cobalt, and Their Alloys written by Joseph R. Davis and published by ASM International. This book was released on 2000-01-01 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive guide to the compositions, properties, processing, performance, and applications of nickel, cobalt, and their alloys. It includes all of the essential information contained in the ASM Handbook series, as well as new or updated coverage in many areas in the nickel, cobalt, and related industries.

Geothermal Direct Use Engineering and Design Guidebook

Author : Paul J. Lienau
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Geothermal Direct Use Engineering and Design Guidebook by : Paul J. Lienau

Download or read book Geothermal Direct Use Engineering and Design Guidebook written by Paul J. Lienau and published by . This book was released on 1989 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Corrosion Prevention and Protection

Author : Edward Ghali
Publisher : John Wiley & Sons
ISBN 13 : 0470024038
Total Pages : 574 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Corrosion Prevention and Protection by : Edward Ghali

Download or read book Corrosion Prevention and Protection written by Edward Ghali and published by John Wiley & Sons. This book was released on 2007-01-30 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion Prevention and Protection: Practical Solutions presents a functional approach to the various forms of corrosion, such as uniform corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, stress corrosion, hydrogen-induced damage, sulphide stress cracking, erosion-corrosion, and corrosion fatigue in various industrial environments. The book is split into two parts. The first, consisting of five chapters: Introduction and Principles (Fundamentals) of Corrosion Corrosion Testing, Detection, Monitoring and Failure Analysis Regulations, Specifications and Safety Materials: Metals, Alloys, Steels and Plastics Corrosion Economics and Corrosion Management The second part of the book consists of two chapters which present: a discussion of corrosion reactions, media, active and active-passive corrosion behaviour and the various forms of corrosion, a collection of case histories and practical solutions which span a wide range of industrial problems in a variety of frequently encountered environments, including statues & monuments, corrosion problems in metallurgical and mineral processing plants, boilers, heat exchangers and cooling towers, aluminum and copper alloys, galvanized steel structures as well as hydrogeological environmental corrosion This text is relevant to researchers and practitioners, engineers and chemists, working in corrosion in industry, government laboratories and academia. It is also suitable as a course text for engineering students as well as libraries related to chemical and chemical engineering institutes and research departments.

Structure-Property Relations in Nonferrous Metals

Author : Alan Russell
Publisher : John Wiley & Sons
ISBN 13 : 0471708534
Total Pages : 440 pages
Book Rating : 4.4/5 (717 download)

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Book Synopsis Structure-Property Relations in Nonferrous Metals by : Alan Russell

Download or read book Structure-Property Relations in Nonferrous Metals written by Alan Russell and published by John Wiley & Sons. This book was released on 2005-07-08 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This junior/senior textbook presents fundamental concepts ofstructure property relations and a description of how theseconcpets apply to every metallic element except iron. Part One of the book describes general concepts of crystalstructure, microstructure and related factors on the mechanical,thermal, magnetic and electronic properties of nonferrous metals,intermetallic compounds and metal matrix composites. Part Two discusses all the nonferrous metallic elements from twoperspectives: First it explains how the concepts presented in PartOne define the properties of a particular metallic element and itsalloys. Second is a description of the major engineering uses ofeach metal. This section features sidebar pieces describingparticular physical property oddities, engineering applications andcase studies. An Instructor's Manual presenting detailed solutionsto all the problems in the book is available from the Wileyeditorial department. An Instructor's Manual presenting detailed solutions to all theproblems in the book is available from the Wiley editorialdepartment.

Rules of Thumb for Chemical Engineers

Author : Carl Branan
Publisher : Gulf Professional Publishing
ISBN 13 : 9780750675673
Total Pages : 438 pages
Book Rating : 4.6/5 (756 download)

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Book Synopsis Rules of Thumb for Chemical Engineers by : Carl Branan

Download or read book Rules of Thumb for Chemical Engineers written by Carl Branan and published by Gulf Professional Publishing. This book was released on 2002 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fractionators, separators and accumulators, cooling towers, gas treating, blending, troubleshooting field cases, gas solubility, and density of irregular solids * Hundreds of common sense techniques, shortcuts, and calculations.

Handbook of Engineering Practice of Materials and Corrosion

Author : Jung-Chul (Thomas) Eun
Publisher : Springer Nature
ISBN 13 : 3030364305
Total Pages : 885 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Handbook of Engineering Practice of Materials and Corrosion by : Jung-Chul (Thomas) Eun

Download or read book Handbook of Engineering Practice of Materials and Corrosion written by Jung-Chul (Thomas) Eun and published by Springer Nature. This book was released on 2020-09-04 with total page 885 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is an in-depth guide to the practical aspects of materials and corrosion engineering in the energy and chemical industries. The book covers materials, corrosion, welding, heat treatment, coating, test and inspection, and mechanical design and integrity. A central focus is placed on industrial requirements, including codes, standards, regulations, and specifications that practicing material and corrosion engineers and technicians face in all roles and in all areas of responsibility. The comprehensive resource provides expert guidance on general corrosion mechanisms and recommends materials for the control and prevention of corrosion damage, and offers readers industry-tested best practices, rationales, and case studies.