Fatigue and Corrosion in Metals

Author: Pietro Paolo Milella
Publisher: Springer Science & Business Media
ISBN: 8847023351
Format: PDF, Kindle
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This textbook, suitable for students, researchers and engineers, gathers the experience of more than 20 years of teaching fracture mechanics, fatigue and corrosion to professional engineers and running experimental tests and verifications to solve practical problems in engineering applications. As such, it is a comprehensive blend of fundamental knowledge and technical tools to address the issues of fatigue and corrosion. The book initiates with a systematic description of fatigue from a phenomenological point of view, since the early signs of submicroscopic damage in few surface grains and continues describing, step by step, how these precursors develop to become mechanically small cracks and, eventually, macrocracks whose growth is governed by fracture mechanics. But fracture mechanics is also introduced to analyze stress corrosion and corrosion assisted fatigue in a rather advanced fashion. The author dedicates a particular attention to corrosion starting with an electrochemical treatment that mechanical engineers with a rather limited knowledge of electrochemistry will well digest without any pain. The electrochemical introduction is considered an essential requirement to the full understanding of corrosion that is essentially an electrochemical process. All stress corrosion aspects are treated, from the generalized film rupture-anodic dissolution process that is the base of any corrosion mechanism to the aggression occurring in either mechanically or thermally sensitized alloys up to the universe of hydrogen embrittlement, which is described in all its possible modes of appearance. Multiaxial fatigue and out-of-phase loading conditions are treated in a rather comprehensive manner together with damage progression and accumulation that are not linear processes. Load spectra are analyzed also in the frequency domain using the Fourier transform in a rather elegant fashion full of applications that are generally not considered at all in fatigue textbooks, yet they deserve a special place and attention. The issue of fatigue cannot be treated without a probabilistic approach unless the designer accepts the shame of one-out-of-two pieces failure. The reader is fully introduced to the most promising and advanced analytical tools that do not require a normal or lognormal distribution of the experimental data, which is the most common case in fatigue. But the probabilistic approach is also used to introduce the fundamental issue of process volume that is the base of any engineering application of fatigue, from the probability of failure to the notch effect, from the metallurgical variability and size effect to the load type effect. Fractography plays a fundamental role in the post mortem analysis of fatigue and corrosion failures since it can unveil the mystery encrypted in any failure.

Fatigue and Corrosion in Metals

Author: Vivek Tiwari
Publisher:
ISBN: 9781681172170
Format: PDF, ePub, Docs
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Corrosion fatigue is fatigue in a corrosive environment. It is the mechanical degradation of a material under the joint action of corrosion and cyclic loading. Nearly all engineering structures experience some form of alternating stress, and are exposed to harmful environments during their service life. The environment plays a significant role in the fatigue of high-strength structural materials like steel, aluminum alloys and titanium alloys. Materials with high specific strength are being developed to meet the requirements of advancing technology. However, their usefulness depends to a large extent on the extent to which they resist corrosion fatigue. The effects of corrosive environments on the fatigue behavior of metals were studied as early as 1930. The phenomenon should not be confused with stress corrosion cracking, where corrosion (such as pitting) leads to the development of brittle cracks, growth and failure. The only requirement for corrosion fatigue is that the sample be under tensile stress.

Die Korrosion der Metalle

Author: Helmut Kaesche
Publisher: Springer-Verlag
ISBN: 3642184286
Format: PDF, Docs
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Die „Klassiker der Technik“ sind unveränderte Neuauflagen traditionsreicher ingenieurwissenschaftlicher Werke. Wegen ihrer didaktischen Einzigartigkeit und der Zeitlosigkeit ihrer Inhalte gehören sie zur Standardliteratur. Hintergründe vieler computergestützter Verfahren erschließen sich erst durch das Studium dieses klassischen Wissens. In dem Klassiker zur Korrosion der Metalle wird der Stoff systematisch und didaktisch durchdacht dargestellt. Dabei beschränkt sich der Autor auf das Wesentliche und erläutert dennoch eine Fülle von Einzelfragen.

Fatigue Crack Propagation in Metals and Alloys

Author: Ulrich Krupp
Publisher: John Wiley & Sons
ISBN: 3527315373
Format: PDF
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This comprehensive overview of the whole field of fatigue and fracture of metallic materials covers both the theoretical background and some of the latest experimental techniques. It provides a summary of the complex interactions between material microstructure and cracks, classifying them with respect to the overall damage process with a focus on microstructurally short cracks and dynamic embrittlement. It furthermore introduces new concepts for the numerical treatment of fatigue microcrack propagation and their implementation in fatigue-life prediction models.This comprehensive overview of the whole field of fatigue and fracture of metallic materials covers both the theoretical background and the latest experimental techniques. It provides a summary of the complex interactions between material microstructure and cracks, classifying them with respect to the overall damage process. It furthermore introduces new concepts for the numerical treatment of fatigue microcrack propagation and their implementation in fatigue-life prediction models.

Corrosion fatigue of metals in marine environments

Author: C. E. Jaske
Publisher: Springer
ISBN:
Format: PDF
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This book was prepared to document and review the major factors involved in corrosion fatigue of metals in marine environments. This includes both crack initiation and crack growth. Background information was obtained by searching technical literature through eight different sources--(1) Chemical Abstracts, (2) Metals Abstracts, (3) Metals and ceramics Information Center (MCIC), (4) Engineering Index, (5) Copper Data Center, (6) National Technical Information Service, (7) Defense Technical Information Service, and (8) Proceedings of Offshore Technology Conferences. Unpublished and proprietary papers and reports were excluded unless permission was obtained to release the results contained therein. Thus, most of the information was from documents published in the open literature. For convenient use and reference, discussions on corrosion-fatigue behavior are divided into separate chapters dealing with (1) carbon and alloy steels, (2) stainless steels, (3) nickel-base alloys, (4) copper-base alloys, (5) aluminum alloys, and (6) titanium alloys. Representative plots and tabulations of important data and factors influencing them are presented, but exhaustive plots and tabulations of all available data, such as might be found in handbooks, are not included because these are beyond the scope of this review. A general background for corrosion fatigue is presented in Chapter 2, which briefly discusses experimental procedures, general phenomena and mechanisms, variables affecting corrosion of metals in marine environments, and use of fatigue data in design.

Corrosion of Metals

Author: Helmut Kaesche
Publisher: Springer Science & Business Media
ISBN: 3642960383
Format: PDF, ePub, Docs
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Corrosion due to water is one of the most significant and complex causes of damage to metallic products. Written from the viewpoint of physical chemistry, this authoritative and established text deals with the aqueous corrosion of metals. Available for the first time in English, Corrosion of Metal addressing engineers, metallurgists, physicists and chemists. This self-contained, valuable reference comprehensively organizes and makes readily accessible the accumulated wealth of fundamental and applied knowledge. The concentration is on the underlying essentials of corrosion and failure, and the material is consistently presented in relation to practical applications to corrosion protection. The first chapters introducing the physicochemical principles are ideal for students. The following chapters provide an overview of the state of research for those familiar with the fundamentals. An exhaustive bibliography and appendices conclude the volume.