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Corrosion Fatigue Of 7000 Series Aluminum Alloys
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Book Synopsis Corrosion Fatigue of 7000 Series Aluminum Alloys by : D. Hardie
Download or read book Corrosion Fatigue of 7000 Series Aluminum Alloys written by D. Hardie and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of fatigue testing of 7017-T651 aluminum alloy in seawater at frequencies from 0.1 to 70 Hz have been assessed in relation to the stress corrosion behavior of this material. In particular, the applicability of a simple superposition model is examined. Detailed fractographic examination indicates a dependence of fracture mode upon both crack growth rate and frequency that is consistent with a dependence upon the rate of diffusion of hydrogen in the material. Despite this, it seems that some other process provides the rate-determining step in the cracking. Various possibilities are considered.
Book Synopsis Time-dependent Corrosion Fatigue Crack Propagation in 7000 Series Aluminum Alloys by : Mark E. Mason
Download or read book Time-dependent Corrosion Fatigue Crack Propagation in 7000 Series Aluminum Alloys written by Mark E. Mason and published by . This book was released on 1995 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Corrosion-fatigue Behavior of Aluminum Alloys by : D. N. Williams
Download or read book Environmental Corrosion-fatigue Behavior of Aluminum Alloys written by D. N. Williams and published by . This book was released on 1970 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of environment on fatigue behavior are quite intimately related to such test variables as stress intensity, cyclic frequency, and temperature. The effect of these variables has been shown to be quite complex. However, a consistent pattern of behavior is beginning to emerge which, it is hoped, will lead to a considerably changed understanding of the corrosion-fatigue process. It is considered probable that an increased understanding of the corrosion-fatigue process will also contribute measureably to an improved understanding of general fatigue processes. Material variables such as composition, directionality of properties, and microstructure, have important effects on corrosion-fatigue behavior of aluminum alloys. However, it appears that these variables, at least in gaseous environments, may be important largely because of their effects on the mechanical behavior of aluminum alloys. On the other hand, studies in seawater suggest that these variables become increasingly important as the corrosive nature of the environment increases. This memorandum discusses in detail the effects of both test variables and material variables on corrosion fatigue. In addition, current theories of corrosion-fatigue mechanisms are outlined, and several methods of preventing corrosion fatigue are suggested. (Author).
Book Synopsis Environment-sensitive Fracture by : S. W. Dean
Download or read book Environment-sensitive Fracture written by S. W. Dean and published by ASTM International. This book was released on 1984 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Fatigue in Aluminum-lithium Alloys by :
Download or read book Environmental Fatigue in Aluminum-lithium Alloys written by and published by . This book was released on 1992 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Corrosion-Fatigue Crack Propagation Rates in Commercial 7075 and P/M X7091 Aluminum Alloys by : M. Kumar
Download or read book Corrosion-Fatigue Crack Propagation Rates in Commercial 7075 and P/M X7091 Aluminum Alloys written by M. Kumar and published by . This book was released on 1983 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recently developed powder metallurgy (P/M) alloy X7091 (formerly CT91) has strength characteristics similar to ingot metallurgy (I/M) 7000 series alloys. However, its stress corrosion cracking resistance has been reported to be far superior to the conventional ingot-processed alloys. This suggests that P/M alloy X7091 may have far better corrosion fatigue behavior than I/M 7075-T651. Fatigue crack growth rates between 2.5 x 10-8 and 2.5 x 10-6 m/cycle (10-6 and 10-4 in./cycle) were measured for specimens in both the S-T and T-L orientations. In order to determine the effect of environment on the fatigue crack growth rates, tests were conducted in both an innocuous and an aggressive environment (R = 0.5; f = 0.2 Hz). Since it is known that the fatigue crack growth rates of aluminum alloys are sensitive to small amounts of water vapor, gaseous nitrogen with a dew point of -60°C (-75°F) was chosen as the innocuous environment. An aerated 31⁄2% NaCl solution was used as the corrosive environment.
Book Synopsis Corrosion of Aluminum and Aluminum Alloys by : Joseph R. Davis
Download or read book Corrosion of Aluminum and Aluminum Alloys written by Joseph R. Davis and published by ASM International. This book was released on 1999-01-01 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress-corrosion Cracking of Aluminum Alloys by : Gunter Ogiermann
Download or read book Stress-corrosion Cracking of Aluminum Alloys written by Gunter Ogiermann and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes information from selected European papers and lectures that were published or presented between mid 1967 and July 1, 1968. Subjects discussed include: the nature of stress-corrosion, stress-corrosion in AlMg, AlMgZn, and AlMgSi alloys and testing for susceptibility to stress-corrosion cracking. (Author).
Book Synopsis Low Cycle Corrosion Fatigue and Corrosion Fatigue Crack Propagation of High Strength 7000-type Aluminum Alloys by : Fu-Shiong Lin
Download or read book Low Cycle Corrosion Fatigue and Corrosion Fatigue Crack Propagation of High Strength 7000-type Aluminum Alloys written by Fu-Shiong Lin and published by . This book was released on 1978 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-dependent Corrosion Fatique Crack Propagation in 7000 Series Aluminum Alloys by :
Download or read book Time-dependent Corrosion Fatique Crack Propagation in 7000 Series Aluminum Alloys written by and published by . This book was released on 1995 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Stress Corrosion and Corrosion Fatigue of Aluminum Alloys by : Robert Howell Rivers
Download or read book A Study of Stress Corrosion and Corrosion Fatigue of Aluminum Alloys written by Robert Howell Rivers and published by . This book was released on 1951 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress-Corrosion and Corrosion-Fatigue Susceptibility of High-Strength Aluminum Alloys by : G. E. Nordmark
Download or read book Stress-Corrosion and Corrosion-Fatigue Susceptibility of High-Strength Aluminum Alloys written by G. E. Nordmark and published by . This book was released on 1970 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 'stress-corrosion-fatigue' performance of several high strength- aluminum alloys was investigated by tests of hydraulic cylinders and other types of specimens. Specimens were prepared from forgings and forging stock of alloys 2014-T6, 7075-T6, 7075-T73, 7079-T6, and X7080-T7 and from premium castings of alloy CH70-T7. Alloy 7075-T73 rated best in the corrosion-fatigue tests; no stress-corrosion cracking occurred in this alloy, and the lives of forged cylinders subjected to repeated loadings to 80% of design stress in a corrosive environment were at least 10 times as long for this alloy as for forged cylinders of alloys 2014-T6, 7075-T6, or 7079-T6. Fractographic examination showed that stress-corrosion cracking as well as fatigue cracking occurred in alloys 2014-T6, 7075-T6, and 7079-T6 in the stress-corrosion-fatigue tests. The investigation demonstrated that stress corrosion and fatigue can interact under certain conditions to produce failures in shorter times and fewer cycles than for either phenomenon occurring by itself.
Book Synopsis Corrosion Fatigue of High Strength Aluminum Alloys in the Short-transverse Direction by : Michael James Hovan
Download or read book Corrosion Fatigue of High Strength Aluminum Alloys in the Short-transverse Direction written by Michael James Hovan and published by . This book was released on 1973 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Corrosion Fatigue of Aluminum Alloys in Saline Solution Under Potentiostatic Control by : John Edward Jr Dresty
Download or read book The Corrosion Fatigue of Aluminum Alloys in Saline Solution Under Potentiostatic Control written by John Edward Jr Dresty and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress-corrosion Cracking of Aluminum Alloys by : J. D. Jackson
Download or read book Stress-corrosion Cracking of Aluminum Alloys written by J. D. Jackson and published by . This book was released on 1965 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Corrosion and Corrosion Fatigue of Aluminum Alloys: Chemistry, Micromechanics and Reliability by :
Download or read book Corrosion and Corrosion Fatigue of Aluminum Alloys: Chemistry, Micromechanics and Reliability written by and published by . This book was released on 1998 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lehigh University undertook a 3-year, multidisciplinary program of research, under AFOSR Grant No. F49620-98-1-0198, to further develop a basic mechanistic understanding of the damage evolution processes of localized corrosion and corrosion fatigue crack nucleation and growth in aluminum alloys used in aircraft construction, and to formulate mechanistically based probability models for reliability assessment and life-cycle management based on this understanding. Research was initiated on 1 February 1998 and was extended to 31 July 2001. The objectives of the program are: (1) the development of basic understanding of the processes of localized corrosion and corrosion fatigue crack nucleation and growth in high strength aluminum alloys used in airframe construction; (2) the formulation of kinetic models for these elemental processes; and (3) the integration of these models into probabilistic models that can provide guidance in formulating methodologies for service life prediction and fleet management. Research carried out under this grant has demonstrated the need and the feasibility for developing mechanistically based probability models (versus statistically based parametric models) for the evolution of damage from time-dependent processes, such as corrosion and corrosion fatigue. Such models need to be integrated along with other science-based methods, into a new paradigm for the overall optimization of design, manufacturing, operation and disposal and for life-cycle management of engineered systems. A challenge is made to the research and engineering community, as well as industry, and sponsoring agencies, to focus on the development of this new paradigm for designing reliable and affordable engineered systems.
Book Synopsis The Effects of Combined Prior Stress and Atmospheric Corrosion on the Fatigue Life of Aluminum Alloys by : Herbert A. Leybold
Download or read book The Effects of Combined Prior Stress and Atmospheric Corrosion on the Fatigue Life of Aluminum Alloys written by Herbert A. Leybold and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
