Download or read book Electrochemical Corrosion Behavior of Metallic Implant Materials written by Enxi Sun and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electrochemical and Corrosion Behavior of Metallic Glasses written by Vahid Hasannaeimi and published by MDPI. This book was released on 2021-02-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses are multi-component metallic alloys with disordered atomic distribution unlike their crystalline counterparts with long range periodicity in arrangement of atoms. Metallic glasses of different compositions are being commercially used in bulk form and as coatings because of their excellent corrosion resistance. This book was written with the objective of providing a comprehensive understanding of the electrochemical and corrosion behavior of metallic glasses for a wide range of compositions. Corrosion in structural materials leads to rapid deterioration in the performance of critical components and serious economic implications including property damage and loss in human life. Discovery and development of metallic alloys with enhanced corrosion resistance will have a sizable impact in a number of areas including manufacturing, aerospace, oil and gas, nuclear industry, and load-bearing bioimplants. The corrosion resistance of many metallic glass systems is superior compared to conventionally used alloys in different environments. In this book, we discuss in detail the role of chemistry, processing conditions, environment, and surface state on the corrosion behavior of metallic glasses and compare their performance with conventional alloys. Several of these alloy systems consist of all biocompatible and non-allergenic elements making them attractive for bioimplants, stents, and surgical tools. To that end, critical insights are provided on the bio-corrosion response of some metallic glasses in simulated physiological environment.

Download or read book Corrosion and Trib corrosion Behaviour of Metallic Orthopaedic Implant Materials written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the introduction of medical implants into human bodies, corrosion and wear have been regarded as key issues for their long-term durability. There has been a recent renewed interest in the use of large diameter metal-on-metal (MoM) hips, primarily because of the reduced volumetric wear compared with the wellestablished polyethylene-on-metal joints. Long term durability of MoM joints relies on control of both their corrosion resistance (relating to ion release) and wear behaviour (relating to creation of nanometre-scale wear debris). Concerns about the potential risk of released metal ions to the biological environment (patient) are of great importance. In this respect tribocorrosion is a serious consideration in joint performance. An integrated electrochemical cell on a reciprocating tribo-meter was employed to evaluate the corrosion and tribocorrosion behaviour in a protein rich solution (Bovine Serum), a cell culture solution (DMEM) and a saline solution (NaCI) with the attempt to isolate the organic species effects. Three commonly used orthopaedic materials were involved in this study. A High Carbon Cobalt-Chromium-Molybdenum alloy, a Low Carbon Cobalt-Chromium-Molybdenum and UNS S31603 Stainless Steel (316L). A range of electrochemical methods were used in the assessment of materials under biotribocorrosion systems and results were supported by surface analysis and bulk solution analysis techniques. The material degradation rate is strongly dependent upon the charge transfer (corrosion), the mechanical damage (tribology) and also their interactions (tribocorrosion) in these simulated biological environments.

Download or read book Corrosion and Degradation of Implant Materials written by B. C. Syrett and published by ASTM International. This book was released on 1979 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Tribocorrosion Behavior of Metallic Implants written by Mihir V. Patel and published by . This book was released on 2019 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prosthetic implants have helped to restore mobility and increase the function of diseased joints. The modular design of joint replacement is most widely used due to the ease of anatomic customization. Modular interface such as the stem-head interface of total hip replacements is continuously subjected to wear and corrosion. CoCrMo and Ti6Al4V ELI are the most widely used metals in Total Hip Joint Replacement implant devices because of their long life, high mechanical strength, and electrochemical stability. Tribocorrosion behavior study of both metals is essential to predict the actual performance of these metals in implant and to judge which metal is better over others. The scratch test and electrochemistry of corrosion is performed on both metals to see wear behavior at varying Normal load. Three different loads were used on both metals to get a broader view. Open Circuit Potential (OCP) and Potentiostatic Polarization Resistance were measured to analyze corrosion behavior of metal along with mechanical wear by scratching the flat surface with the micromotion of the spherical ball. Potentiodynamic Polarization Resistance (PPR) were measured for corrosion behavior during an ideal condition when there is no mechanical wear. OCP measurement revealed that Ti6Al4V ELI exhibits depassivation for first few cycles of scratch but started repassivation soon with periodic depassivation. While on CoCrMo depassivation was more than repassivation resulting in continuous small drops during fretting. Ti6Al4V ELI showed better corrosion resistance at all loads during fretting. After fretting was ceased, repassivation was faster in CoCrMo than Ti6Al4V ELI. The coefficient of friction (COF) measurement during scratching is beneficial for predicting the material removal and wear debris arrest between contacting surface. PPR measurement yielded a wider range of passive zone for Ti6Al4V ELI when swept through negative to positive voltage. Potentiostatic Polarization at three different voltage resulted in an increase in current density from baseline only in CoCrMo along with scratch at three loads. Ti6Al4V ELI was passive at all three voltage and all three loads. CoCrMo showed a higher change in current density at a higher voltage and load.

Download or read book Corrosion Processes written by George Vachtsevanos and published by Springer Nature. This book was released on 2020-01-01 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses relevant topics in field of corrosion, from sensing strategies to modeling of control processes, corrosion prevention, detection of corrosion initiation, prediction of corrosion growth and evolution, to maintenance practices and return on investment.Written by leading international experts, it combines mathematical and scientific rigor with multiple case studies, examples, colorful images, case studies and numerous references exploring the essentials of corrosion in depth. It appeals to a wide readership, including corrosion engineers, managers, students and industrial and government staff, and can serve as a reference text for courses in materials, mechanical and aerospace engineering, as well as anyone working on corrosion processes.

Download or read book Novel Research about Biomechanics and Biomaterials Used in Hip Knee and Related Joints written by J. Philippe Kretzer and published by . This book was released on 2021 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Joint replacement is a very successful medical treatment. However, the survivorship of hip, knee, shoulder, and other implants is limited. The degradation of materials and the immune response against degradation products or an altered tissue loading condition as well as infections remain key factors of their failure. Current research in biomechanics and biomaterials is trying to overcome these existing limitations. This includes new implant designs and materials, bearings concepts and tribology, kinematical concepts, surgical techniques, and anti-inflammatory and infection prevention strategies. A careful evaluation of new materials and concepts is required in order to fully assess the strengths and weaknesses and to improve the quality and outcomes of joint replacements. Therefore, extensive research and clinical trials are essential. The main aspects that are addressed in this Special Issue are related to new material, design and manufacturing considerations of implants, implant wear and its potential clinical consequence, implant fixation, infection-related material aspects, and taper-related research topics. This Special Issue gives an overview of the ongoing research in those fields. The contributions were solicited from researchers working in the fields of biomechanics, biomaterials, and bio- and tissue-engineering.

Download or read book Corrosion of Titanium written by J. D. Jackson and published by . This book was released on 1966 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigating Corrosion Behaviors of Anodized Metallic Implants by Electrochemical Analysis written by Md. Shafinur Murad and published by . This book was released on 2016 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomaterials are used in implantations inside the human body and have been a reliable method for a long time but not without detrimental effects. Although biomaterial manufacturing companies claim a longer service life for implants, it has been found that after a few years of implantation, a number of patients have complained about severe pain around the implantation areas attributed to the corrosion of implants. A number of research studies are undergoing to understand and reduce this corrosion. Anodization is a method performed in an electrolyte solution to reduce corrosion. Subsequent tests have been performed to recognize the impacts of anodized biomaterials, which includes immersing them into various solutions. The purpose of this research was to carry out a long-term investigation of the corrosive behavior of both anodized and non-anodized biomaterials under controlled conditions. The titanium alloy Ti6Al4V was anodized in 0.4 M phosphoric acid (PHOA) and 0.5 M oxalic acid (OXA), and the magnesium alloy MgAZ31B was anodized in 0.4 M PHOA and 1 N potassium hydroxide (KOH) by applying 20 V DC potential. Prolonged investigations were performed by immersing them in 3% sodium chloride (NaCl), phosphate buffered saline (PBS), and deionized (DI) water solutions and measuring the corrosion rate and pattern by electrochemical analysis. Anodized titanium (Ti) and magnesium (Mg) alloys have been found to be more corrosion resistive than their non-anodized alloys. Maximum corrosion rates (CRs) of 3.0430 mpy and 0.78447 mpy were found for non-anodized and anodized Ti6Al4V, respectively, after immersion in 3% NaCl solution for 1,080 hours. Maximum CRs of 1640.02 mpy and 868.63 mpy were found for nonanodized and anodized MgAZ31B, respectively, after immersion in 3% NaCl solution for 12 hours. It was observed that anodization increases the natural oxide layer on the material surface, which decreases the corrosion rate and prolongs the life of the biomaterial.

Download or read book Fundamentals of Electrochemical Corrosion written by Ele Eugene Stansbury and published by ASM International. This book was released on 2000-01-01 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the essential aspects of the corrosion behavior of metals in aqueous environments, this book is designed with the flexibility needed for use in courses for upper-level undergraduate and graduate students, for concentrated courses in industry, for individual study, and as a reference book.

Download or read book Degradation of Implant Materials written by Noam Eliaz and published by Springer Science & Business Media. This book was released on 2012-08-21 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current understanding of the mechanical, chemical and biological processes that are responsible for the degradation of a variety of implant materials. All 18 chapters will be written by internationally renowned experts to address both fundamental and practical aspects of research into the field. Different failure mechanisms such as corrosion, fatigue, and wear will be reviewed, together with experimental techniques for monitoring them, either in vitro or in vivo. Procedures for implant retrieval and analysis will be presented. A variety of biomaterials (stainless steels, titanium and its alloys, nitinol, magnesium alloys, polyethylene, biodegradable polymers, silicone gel, hydrogels, calcium phosphates) and medical devices (orthopedic and dental implants, stents, heart valves, breast implants) will be analyzed in detail. The book will serve as a broad reference source for graduate students and researchers studying biomedicine, corrosion, surface science, and electrochemistry.

Download or read book Corrosion of Stainless Steels written by A. John Sedriks and published by John Wiley & Sons. This book was released on 1996-04-19 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Complete, Up-to-Date Introduction to Corrosion of StainlessSteels and Metallurgical Factors This fully updated Second Editionof Corrosion of Stainless Steels covers the tremendous advancesmade with stainless steels in recent decades, includingapplications in many new areas--from marine technologies andoff-shore oil production to power plants and the kitchen sink. Thisbook offers unique insights into the corrosion mechanisms affectingstainless steels, details problem-avoidance strategies, and helpsidentify corrosion-resistant capabilities for these remarkablealloys Sponsored by the Electrochemical Society, Corrosion osStainless Steels * Provides a comprehensive introduction to the selection,development, and production of all types of stainless steels * Emphasizes how metallurgical factors affect corrosionresistance * Examines the limitations of stainless steels within the contextof a discussion on higher alloys * Takes an interdisciplinary approach that demonstrates thecombined effects of metallurgy, chemistry, and electrochemistry oncorrosion resistance * Provides baseline knowledge and testing standards for stainlesssteels, and facilitates failure analysis for industrial purposes orlitigation related to equipment failure This is a much-needed text for materials scientists, chemicalengineers, corrosion specialists, graduate students, and anyone whoneeds to be brought up to date on this subject.

Download or read book Electrochemical Corrosion Behavior of Alloys Formed by Ion Implantation written by United States. Bureau of Mines and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inter Laboratory Study on Electrochemical Methods for the Characterization of Cocrmo Biomedical Alloys in Simulated Body Fluids written by A. Igual Munoz and published by CRC Press. This book was released on 2020-11-25 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This special issue of Corrosion Engineering Science and Technology is dedicated to the study of corrosion of objects from historical sites. The issue contains contributions from the 2009 EUROCORR session on Corrosion of Archaeological and Heritage Artefacts organised by the European Federation of Corrosion's working party and commissioned articles on other key issues. The objective is to give the reader a broad understanding of corrosion of ancient materials, for the most part metal but also glass. Articles shed light on a range of analytical approaches related to the study of the complex systems that make up historical artifacts. In order to arrive at an understanding of the nanometric organisation of rust layers and interphases, such studies must be approached on a macroscopic scale. Techniques used include; macrophotography, synchrotron radiation and transmission electron microscopy (TEM) that ensure results that are both exhaustive and representative of particular observations. This issue demonstrates the wealth of approaches possible in the study of the corrosion of ancient materials.

Download or read book Medical Applications of Titanium and Its Alloys written by Jack E. Lemons and published by ASTM International. This book was released on 1996 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirty papers presented at a 1994 symposium cover the basic materials science issues regarding the processing of titanium alloys, and the controversy regarding their use in medicine. Coverage includes orthopaedic, dental, and cardiovascular applications, with a primary focus on the orthopaedic. Info

Download or read book Corrosion and Degradation of Implant Materials written by A. C. Fraker and published by ASTM International. This book was released on 1985 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: