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Effect Of Silver Addition On Mechanical Properties And Stress Corrosion Cracking In A Predeformed And Overaged 7055 Aluminum Alloy
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Book Synopsis Effect of Silver Addition on Mechanical Properties and Stress Corrosion Cracking in a Predeformed and Overaged 7055 Aluminum Alloy by : Mehdi Shakouri
Download or read book Effect of Silver Addition on Mechanical Properties and Stress Corrosion Cracking in a Predeformed and Overaged 7055 Aluminum Alloy written by Mehdi Shakouri and published by . This book was released on 2018 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of silver on mechanical properties and stress corrosion cracking (SCC) resistance in a predeformed and overaged 7055 aluminum alloy was investigated. The treatment consisted of solution treating the specimens and then applying 5 % plastic deformation (compression) before aging. The next operation was aging the specimens at 121°C for 24 hours and overaging them at 175°C for 10 hours. Properties of the alloys were investigated by mechanical testing, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and differential scanning calorimetry. Results show that the ultimate tensile strength (UTS) and yield tensile strength (YTS) for the silver-free alloy were 580 and 520MPa, respectively, and increased to 594 and 567MPa after the addition of 0.39 % silver. Moreover, the stress corrosion resistance increased = 23 % after adding 0.2 % silver. It can be seen that the addition of silver to predeformed and overaged 7055 aluminum alloy slightly improves the UTS and YTS and increases resistance to SCC significantly. These improvements are due to the interrupting effect of silver on the continuity of magnesium-rich precipitates and the increasing copper absorption in the precipitates.
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 Stress-corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys by : Benjamin Floyd Brown
Download or read book Stress-corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys written by Benjamin Floyd Brown and published by . This book was released on 1972 with total page 388 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 Stress-corrosion Cracking of Aluminum Alloys by : F. R. Mertens
Download or read book Stress-corrosion Cracking of Aluminum Alloys written by F. R. Mertens and published by . This book was released on 1967 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Iron and Silicon Content on Stress Corrosion Cracking in a Thermomechanically Processed Aluminum Alloy by : P. J. Blau
Download or read book Effect of Iron and Silicon Content on Stress Corrosion Cracking in a Thermomechanically Processed Aluminum Alloy written by P. J. Blau and published by . This book was released on 1975 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of stress corrosion cracking in 7475 type aluminum alloy plates was conducted using five iron and silicon levels, chromium and zirconium minor additions, and two tempers: T651 and thermomechanical processing (TMP). The T651 specimens showed no clear effects of purity or minor addition on stress corrosion resistance; however, a large purity effect was seen in TMP specimens. As total iron and silicon content decreased from 0.31 to 0.02 weight percent, the 2000-hour threshold stress intensity about doubled in these alloys. In addition, TMP alloys showed a relationship between stress corrosion, threshold stress intensity, and precracked Charpy toughness. (Author).
Book Synopsis Stress Corrosion Resistance of Silver Bearing Aluminum Alloys by : Irving S. Shaffer
Download or read book Stress Corrosion Resistance of Silver Bearing Aluminum Alloys written by Irving S. Shaffer and published by . This book was released on 1971 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the effect of silver addition on the stress corrosion resistance of Al-Zn-Mg-Cu alloys. Tests were conducted by alternate immersion in 3 1/2% NaCl on two lots from two different sources. The silver bearing alloys displayed an increased susceptibility to pitting corrosion and a predominantly transgranular mode of cracking. No significant improvement in stress corrosion behavior was noted with silver addition as measured by time to cracking. (Author).
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 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 The Effect of Potential on the Stress Corrosion Cracking of Aluminum Alloy 7075 by : Anh Hong Le
Download or read book The Effect of Potential on the Stress Corrosion Cracking of Aluminum Alloy 7075 written by Anh Hong Le and published by . This book was released on 1982 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Stress Corrosion Cracking of a Non-age-hardenable Aluminum Alloy by : Richard Glen Weber
Download or read book The Stress Corrosion Cracking of a Non-age-hardenable Aluminum Alloy written by Richard Glen Weber and published by . This book was released on 1969 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanisms of Stress-Corrosion Cracking and Liquid-Metal Embrittlement, Particularly in High-Strength Aluminium Alloys by : S. P. Lynch
Download or read book Mechanisms of Stress-Corrosion Cracking and Liquid-Metal Embrittlement, Particularly in High-Strength Aluminium Alloys written by S. P. Lynch and published by . This book was released on 1977 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallographic and fractographic observations of sub-critical crack growth in a precipitation-hardened AlZn-Mg alloy in liquid-metal, aqueous, and water-vapour/air environments suggest that stress-corrosion cracking and liquid-metal embrittlement in this alloy involve a common mechanism. Sub-critical crack growth in all these environments can produce entirely dimpled fracture surfaces and, in liquid-metal and aqueous environments, crack growth can occur extremely rapidly. It is proposed that stress-corrosion cracking and liquid-metal embrittlement in aluminium alloys (and possibly other materials) can be explained on the basis that chemisorption of environmental species facilitates nucleation of dislocations at crack tips. Such a process would produce sub-critical crack growth with less blunting at crack tips than in inert environments and, hence, would explain observations that dimples on fracture surfaces after SCC are smaller and shallower than those on overload fractures. The results suggest that neither dissolution nor hydrogen-embrittlement processes occurred during stress-corrosion cracking in aluminium alloys. (Author).
Book Synopsis Influence of Exposed Area on Stress-corrosion Cracking of 24S Aluminum Alloy by : William H. Colner
Download or read book Influence of Exposed Area on Stress-corrosion Cracking of 24S Aluminum Alloy written by William H. Colner and published by . This book was released on 1954 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to the principal result (the determination of area versus time to failure) the data show that stress levels above 60 percent of the yield strength of the alloy are uniformly effective in producing with stress-corrosion failure.
Book Synopsis Stress Corrosion Cracking of Mild Steel and a High-strength Aluminum Alloy by : Donald Robert Hixson
Download or read book Stress Corrosion Cracking of Mild Steel and a High-strength Aluminum Alloy written by Donald Robert Hixson and published by . This book was released on 1974 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Fundamental Investigation of the Nature of Stress-corrosion Cracking in Aluminum Alloys by : F. H. Haynie
Download or read book A Fundamental Investigation of the Nature of Stress-corrosion Cracking in Aluminum Alloys written by F. H. Haynie and published by . This book was released on 1967 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several experimental techniques are used to study the mechanisms of stress-corrosion cracking in high purity aluminum alloys. The effect of metallurgical variables such as alloying elements (Cr, Ag, Cu) and heat treatments on a 4.2Zn-3.3Mg aluminum alloy are determined. Techniques used in this study include electrode polarization, autoradiographic studies, microstress studies, electron microscopy (replica and transmission), metioscopy, and standard stress-corrosion testing methods. As a result of these studies, an electrochemical theory for the mechanism of stress-corrosion cracking which involves the strain induced absorption of hydrogen is found to be consistent with the observations.
Book Synopsis Avoiding Stress-corrosion Cracking in High Strength Aluminum Alloy Structures by : Donald O. Sprowls
Download or read book Avoiding Stress-corrosion Cracking in High Strength Aluminum Alloy Structures written by Donald O. Sprowls and published by . This book was released on 1982 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress Corrosion Cracking Behavior of Aluminum Alloy 7079 in Region II by : Kazuo Yamada
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:
