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Book Stress corrosion Cracking of Aluminum Alloys

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).

Book Stress corrosion Cracking in High strength Aluminum Alloys

Download or read book Stress corrosion Cracking in High strength Aluminum Alloys written by H. A. HOLL and published by . This book was released on 1969 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stress corrosion Cracking of Aluminum Alloys

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 Stress corrosion Cracking

Download or read book Stress corrosion Cracking written by Russell H. Jones and published by ASM International(OH). This book was released on 1992 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details the many conditions under which stress-corrosion cracking (SCC) can occur, the parameters which control SCC, and the methodologies for mitigating and testing for SCC, plus information on mechanisms of SCC with experimental data on a variety of materials. Contains information about environmen

Book Stress corrosion Cracking of High strength Aluminum Alloys

Download or read book Stress corrosion Cracking of High strength Aluminum Alloys written by Michael V. Hyatt and published by . This book was released on 1970 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stress Corrosion Cracking Evaluation of High Strength Aluminum Alloys

Download or read book Stress Corrosion Cracking Evaluation of High Strength Aluminum Alloys written by David J. Wright and published by . This book was released on 2016 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stress Corrosion Cracking of High Strength Aluminum Alloys

Download or read book Stress Corrosion Cracking of High Strength Aluminum Alloys written by E. N. Pugh and published by . This book was released on 1980 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been made of the mechanism of hydrogen embrittlement (HE) in Al-Zn-Mg alloys, and of the role of hydrogen in the intergranular stress-corrosion cracking (I-SCC) of these alloys. Up to 300 ppm (1 at pct) hydrogen was introduced into a high-purity Al-5.6Zn-2.6Mg alloy, either by room temperature polishing with aqueous slurries of alumina particles or by exposure to water-vapor-saturated air (WVSA) at 70 C, and subsequent tensile tests (stress rate approx 0.0001/s) in inert environments caused brittle intergranular fracture. Embrittlement was found to be reversible, the tensile properties being completely restored when the hydrogen was outgassed. At low hydrogen contents, embrittlement was suppressed by the use of high strain rates (approx 0.01/s), but could not be suppressed by impact testing at large hydrogen concentrations. The intergranular fracture surfaces were observed to be associated with a fragmented layer, and electron-diffraction experiments indicated that it corresponded to a hexagonal aluminum hydride, Al H3, with a = 2.90 A and c = 4.55 A. This hydride, considered to be stress-induced, was unstable in laboratory air, slowly decomposing to FCC Al. It is concluded that internal HE in this alloy occurs by repeated cycles of the formation and rupture of this brittle hydride.

Book Stress corrosion Cracking in High Strength Steels and in Tatanium and Aluminum Alloys

Download or read book Stress corrosion Cracking in High Strength Steels and in Tatanium and Aluminum Alloys written by United States. Naval Research Office and published by . This book was released on 1972 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stress corrosion Cracking of Aluminum Alloys

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 The Role of Hydrogen in the Stress Corrosion Cracking of High Strength Aluminum Alloys

Download or read book The Role of Hydrogen in the Stress Corrosion Cracking of High Strength Aluminum Alloys written by A. W. Thompson and published by . This book was released on 1981 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program has been to understand the stress corrosion cracking (SCC) behavior of high-strength aluminum alloys, and in particular to understand the role played by hydrogen embrittlement in such cracking. The approach taken was to study microstructural effects on both hydrogen embrittlement and SCC, and to establish, insofar as possible, microstructural and fractographic correlations with cracking behavior, and detailed understanding of the mechanical behavior of hydrogen-charged material. When this program began, there existed only a single unconfirmed report of hydrogen embrittlement in a high-strength aluminum alloy. That report was confirmed (on 7075-T651), and extensive additional evidence acquired (on 7075, 2124 and 7050, in a variety of heat treatments), permitting us to assemble a complete and detailed description of hydrogen embrittlement and its dependence on microstructure in Al alloys, in some 14 publications. A parallel effort on SCC behavior has also been conducted, using the technique of Mode I - Mode III testing to provide information on the relative contributions of hydrogen embrittlement and anodic dissolution to SCC. The Mode I data for 7075 showed a close parallel to the hydrogen charging results, in microconstructural dependence and in fractography. The Mode III data showed that the anodic dissolution component of SCC is small compared to hydrogen embrittlement, and moreover, has a much weaker dependence on microstructure. (Author).