Download or read book Stress Corrosion Cracking Behavior of Alloy 22 in Multi Ionic Aqueous Environments written by and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The US Department of Energy is characterizing a potential repository site for nuclear waste in Yucca Mountain (NV). In its current design, the nuclear waste containers consist of a double metallic layer. The external layer would be made of NO6022 or Alloy 22 (Ni-22Cr-13Mo-3W-3Fe). Since over their lifetime, the containers may be exposed to multi-ionic aqueous environments, a potential degradation mode of the outer layer could be environmentally assisted cracking (EAC) or stress corrosion cracking (SCC). In general, Alloy 22 is extremely resistant to SCC, especially in concentrated chloride solutions. Current results obtained through slow strain rate testing (SSRT) shows that Alloy 22 may suffer SCC in simulated concentrated water (SCW) at applied potentials approximately 400 mV more anodic than the corrosion potential (E{sub rr}).
Download or read book Stress Corrosion Cracking written by V S Raja and published by Elsevier. This book was released on 2011-09-22 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of stress corrosion cracking (SCC), which causes sudden failure of metals and other materials subjected to stress in corrosive environment(s), has a significant impact on a number of sectors including the oil and gas industries and nuclear power production. Stress corrosion cracking reviews the fundamentals of the phenomenon as well as examining stress corrosion behaviour in specific materials and particular industries.The book is divided into four parts. Part one covers the mechanisms of SCC and hydrogen embrittlement, while the focus of part two is on methods of testing for SCC in metals. Chapters in part three each review the phenomenon with reference to a specific material, with a variety of metals, alloys and composites discussed, including steels, titanium alloys and polymer composites. In part four, the effect of SCC in various industries is examined, with chapters covering subjects such as aerospace engineering, nuclear reactors, utilities and pipelines.With its distinguished editors and international team of contributors, Stress corrosion cracking is an essential reference for engineers and designers working with metals, alloys and polymers, and will be an invaluable tool for any industries in which metallic components are exposed to tension, corrosive environments at ambient and high temperatures. - Examines the mechanisms of stress corrosion cracking (SCC) presenting recognising testing methods and materials resistant to SCC - Assesses the effect of SCC on particular metals featuring steel, stainless steel, nickel-based alloys, magnesium alloys, copper-based alloys and welds in steels - Reviews the monitoring and management of SCC and the affect of SCC in different industries such as petrochemical and aerospace
Download or read book Stress corrosion Cracking of Aluminum Alloys written by F. H. Haynie and published by . This book was released on 1966 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report deals with the stress-corrosion cracking of aluminum alloys, and it represents an effort by DMIC to expand on the information contained in DMIC Memorandum 202, 'Stress-Corrosion Cracking of Aluminum Alloys', dated February 15, 1965. DMIC Report 228 begins by presenting a comprehensive definition of stress-corrosion cracking. This is followed by sections dealing with (1) the historical development and growth in awareness of the problem, (2) the mechanisms involved, and (3) the theory of stress-corrosion cracking. A section on experimental techniques is presented. These techniques include test methods used to determine the susceptibility of alloys to stress-corrosion cracking, as well as more refined methods of studying the fundamental mechanisms of the problem. Different evaluation methods, applicable to obtaining the different objectives of stress-corrosion testing, are also presented. All of the foregoing serve as background to the sections on stress-corrosion-cracking behavior of aluminum alloys and preventive measures. (Author).
Download or read book ASM Handbook written by ASM International. Handbook Committee and published by . This book was released on 1990 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes cover the properties, processing, and applications of metals and nonmetallic engineering materials. They are designed to provide the authoritative information and data necessary for the appropriate selection of materials to meet critical design and performance criteria.
Download or read book Stress Corrosion Cracking of Annealed and Cold Worked Titanium Grade 7 and Alloy 22 in 110 C Concentrated Salt Environments written by and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stress corrosion crack growth studies have been performed on annealed and cold worked Titanium Grade 7 and Alloy 22 in 110 C, aerated, concentrated, high pH salt environments characteristic of concentrated ground water. Following a very careful transition from fatigue precracking conditions to SCC conditions, the long term behavior under very stable conditions was monitored using reversing dc potential drop. Titanium Grade 7 exhibited continuous crack growth under both near-static and complete static loading conditions. Alloy 22 exhibited similar growth rates, but was less prone to maintain stable crack growth as conditions approached fully static loading.
Download or read book Fundamental Aspects of Stress Corrosion Cracking written by and published by . This book was released on 1969 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensitization and Stress Corrosion Cracking Behavior of Alloy 800 written by Jonathan S. Janssen and published by . This book was released on 2007 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Critical Species in Stress Corrosion Phenomena written by A. R.C. Westwood and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consideration has been given to the identification of the critical species in several stress corrosion systems. It is shown that in the ?-brass/aqueous ammonia system, cupric complex ions of the type Cu(NH3)n2+ play a controlling role in the cracking process. Complex ions are also found to constitute the critical species in the embrittlement of silver chloride in certain aqueous environments. In the case of materials such as stainless steels and magnesium and aluminum alloys, which undergo stress corrosion cracking in chloride environments, the critical species may be the chloride ion itself or metal-chloride complexes. Attention is given to both the role of the critical species in the mechanisms of failure and the practical significance of these findings to stress corrosion testing. It is suggested that more attention to the chemistry of environments which cause stress corrosion cracking, with particular regard to the identification of the critical species, could be of significant practical value.
Download or read book COMPLEX IONS AND STRESS CORROSION CRACKING OF ALPHA BRASS written by and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the stress-corrosion cracking, rate of weight loss, and surface condition of an alloy containing 70% copper and 30% zinc in 15N aqueous ammonia. The behavior is shown to be strongly dependent on the concentration of the cupric complex ion Cu(NH3)5(2+) present in the environment. Stress-corrosion life decreased significantly with increasing complex-ion concentration, the relationship exhibiting a well-defined inflection at a critical concentration. Specimens immersed in solutions of concentrations exceeding the critical value were tarnished, while those exposed to less concentrated solutions appeared tarnish-free. These and other observations indicate that two mechanisms of stress-corrosion cracking are operative, one in the presence of tarnish and the other in the absence of this layer. Possible mechanisms are discussed. A model has been developed to explain the dependence of the tarnishing reaction on the chemical composition of the environment.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress Corrosion Cracking Behavior of Aluminum Alloy 7079 in Region II written by Kazuo Yamada and published by . This book was released on 1989 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Storage and Disposal of Radioactive Materials written by and published by . This book was released on 2002 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress Corrosion Cracking of Al Li Cu Zr Alloy 2090 in Aqueous Cl Sup Minus and Mixed CO Sub 3 Sup 2 Minus Cl Sup Minus Environments written by and published by . This book was released on 1991 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison of the short-transverse SCC behavior of 2090 in pH 5.5 Cl− and alkaline CO3{sup 2 -}/Cl− solutions using a static load smooth bar SCC technique was made. In the alkaline CO3{sup 2 -}/Cl− solutions, E{sub br} for the [alpha]-Al matrix phase was 0.130 V more positive than the E{sub br} of the subgrain boundary T1 phase. In this environment, stress corrosion cracking test specimens subjected to potentials in the window defined by the two breakaway potentials failed along an intersubgranular path in less than an hour. In the Cl− environment, the E{sub br} values for the two phases were nearly equal and this rapid SCC condition could not be satisfied; accordingly SCC failures were not observed. Rapid SCC failure of 2090 in CO3{sup 2 -}/Cl− in our static load, constant immersion experiments appear to be related to recently reported pre-exposure embrittlement'' failures induced by immersing stressed specimens removed into ambient laboratory air after immersion in aerated NaCl solution for 7 days. In those experiments, specimens failed in less than 24 hours after removal from solution. Our polarization experiments have shown that the corrosion behavior of T1, CO3{sup 2 -}/Cl− environments, but the [alpha]-Al phase crack walls, is rapidly passivated. X-ray diffraction of the films which formed in simulated crevices suggests that this passivating film belongs to a class of compounds known as hydrotalcites.
Download or read book Stress Corrosion Cracking in Gaseous and Aqueous Environments written by George Earl Kerns and published by . This book was released on 1973 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Factors Affecting the Stress Corrosion Cracking Behavior of an Aluminum Zinc Magnesium Alloy written by H. L. Craig and published by . This book was released on 1967 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stress corrosion cracking phenomenon in an aluminumzinc-magnesium alloy is affected by the environmental factors in a different fashion than the way these factors affect other corrosion processes. The presence of traces of moisture is sufficient for stress corrosion cracking to proceed; the absence of moisture prevents cracking. The time required to initiate stress corrosion cracking is affected mostly by the temperature of the environment. Wide variations in sodium chloride concentration have no effect on the time-to-failure. Changes in solution pH and contamination with dissolved copper alter the time required to produce failure, so that stress corrosion cracking is not a continuous function of either variable. Evidence is presented which shows that the manner of stressing a specimen and specimen configuration both affect failure time. These anomalies may be used to understand the lack of reproducibility of stress corrosion testing and the difficulties encountered in correlation studies, either among different tests or the same test carried out by different laboratories.
Download or read book Stress Corrosion Cracking Behavior of Alloy 600 in High Temperature Water written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
