Download or read book Investigation to Develop a High Strength Stress Corrosion Resistant Aluminum Aircraft Alloy written by J. T. Staley and published by . This book was released on 1970 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the program was to develop a high-strength aluminum alloy resistant to stress-corrosion cracking in the critical short-transverse direction. The alloys investigated include a 7175 control and Al-Zn-Mg-Cu alloys containing 5.8 to 7.4% Zn, 2.0 to 2.5% Mg, and 2.1 to 2.7% Cu along with either separate or combined additions of Zr, Mn, and Cr. They were fabricated from large ingots to two-inch thick plate to insure that the structures would be representative of thick, hot-worked products. All of the experimental alloys developed more attractive combinations of strength and hardenability than the 7175 control along with promising resistance to stress-corrosion cracking. Moreover, most of them developed short-transverse elongation values equal to or higher than that of 7175 on an equivalent strength basis after solution heat treatment times long enough to dissolve substantially all of the Al2CuMg particles. Alloys which contained 5.75-6.75% Zn, 2.0-2.5% Mg, 2.1-2.6% Cu, .09-.15% Zr, .12% max. Fe, and .10% max. Si developed the most attractive combination of properties. (Author).
Download or read book Investigation to Develop a High Strength Stress Corrosion Resistant Naval Aircraft Aluminum Alloy written by J. T. Staley and published by . This book was released on 1970 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents the results of an evaluation of three tempers of commercially fabricated alloy MA15 plate in 1 in. to 6 in. thickness. Compared at equal strengths, MA15 developed higher resistance to stress-corrosion cracking, greater resistance to exfoliation corrosion, higher toughness, and better fatigue performance than established commercial aluminum alloys. Compared at equal resistance to stress-corrosion cracking, MAl5 developed substantially higher strength than established commercial aluminum alloys. Field testing of this material is recommended. (Author).
Download or read book Investigation to Improve the Stress Corrosion Resistance of Aluminum Aircraft Alloys Through Alloy Additions and Specialized Heat Treatment written by J. T. Staley and published by . This book was released on 1969 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program was to develop a high-strength aluminum alloy resistant to stress-corrosion cracking in the short-transverse direction. The alloys investigated included a 7075 control, 7075 type alloys which contained either 0.3% Mn or 0.1% Zr in place of 0.2% Cr, similar alloys which also contained 0.3% Ag, and chromium-bearing alloys which contained either higher zinc or higher copper than the maximum amounts specified for 7075. These materials were evaluated as two-inch thick plate to insure that the structures would be representative of thick, hot-worked products. (Author).
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 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Stress Corrosion Cracking in Aircraft Structural Materials written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Structures and Materials Panel and published by . This book was released on 1967 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a High strength Stress Corrosion Resistant Aluminum Aircraft Alloy written by J. T. STALEY and published by . This book was released on 1971 with total page 12 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 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Stress Corrosion Resistance of a New High Strength Aluminum Alloy Developed for Use in Thick Sections written by Irving S. Shaffer and published by . This book was released on 1971 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the investigation was to evaluate the stress corrosion behavior of a new high strength aluminum alloy plate in the T6+35 hours at 325F temper. Using smooth specimens, stress corrosion tests were conducted in two different laboratory environments. No evidence of stress corrosion cracking was found in any of the test specimens. Exfoliation tests were also conducted on stepped panels which exposed different interior planes through the thickness. The material displayed excellent resistance to exfoliation corrosion. (Author).
Download or read book New Materials for Next Generation Commercial Transports written by Committee on New Materials for Advanced Civil Aircraft and published by National Academies Press. This book was released on 1996-03-29 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major objective of this book was to identify issues related to the introduction of new materials and the effects that advanced materials will have on the durability and technical risk of future civil aircraft throughout their service life. The committee investigated the new materials and structural concepts that are likely to be incorporated into next generation commercial aircraft and the factors influencing application decisions. Based on these predictions, the committee attempted to identify the design, characterization, monitoring, and maintenance issues that are critical for the introduction of advanced materials and structural concepts into future aircraft.
Download or read book Aluminum Lithium Alloys written by N Eswara Prasad and published by Butterworth-Heinemann. This book was released on 2013-09-20 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because lithium is the least dense elemental metal, materials scientists and engineers have been working for decades to develop a commercially viable aluminum-lithium (Al-Li) alloy that would be even lighter and stiffer than other aluminum alloys. The first two generations of Al-Li alloys tended to suffer from several problems, including poor ductility and fracture toughness; unreliable properties, fatigue and fracture resistance; and unreliable corrosion resistance. Now, new third generation Al-Li alloys with significantly reduced lithium content and other improvements are promising a revival for Al-Li applications in modern aircraft and aerospace vehicles. Over the last few years, these newer Al-Li alloys have attracted increasing global interest for widespread applications in the aerospace industry largely because of soaring fuel costs and the development of a new generation of civil and military aircraft. This contributed book, featuring many of the top researchers in the field, is the first up-to-date international reference for Al-Li material research, alloy development, structural design and aerospace systems engineering. - Provides a complete treatment of the new generation of low-density AL-Li alloys, including microstructure, mechanical behavoir, processing and applications - Covers the history of earlier generation AL-Li alloys, their basic problems, why they were never widely used, and why the new third generation Al-Li alloys could eventually replace not only traditional aluminum alloys but more expensive composite materials - Contains two full chapters devoted to applications in the aircraft and aerospace fields, where the lighter, stronger Al-Li alloys mean better performing, more fuel-efficient aircraft
Download or read book Exploratory Development of High strength Stress corrosion Resistant Aluminum Alloys Usable in Thick Section Applications written by James T. Staley and published by . This book was released on 1969 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aluminum Alloys Contemporary Research and Applications written by A. K. Vasudevan and published by Elsevier. This book was released on 2012-12-02 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the structure and properties of the current and potential aluminum alloys in terms of their structure (and structural transformations by new processing methods) and the relationship between structure and mechanical and other properties. The alternative materials that challenge aluminum are considered as well, since the challenge of new competitive materials is a strong influence on innovation. The book bridges the gap between current scientific understanding and engineering practice. It is an up-to-date reference that will be of use to researchers and advanced students in metallurgy and materials engineering.
Download or read book Army Research and Development written by and published by . This book was released on 1973 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Corrosion Science and Technology written by M. G. Fontana and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series was organized to provide a forum for review papers in the area of corrosion. The aim of these reviews is to bring certain areas of corrosion science and technology into a sharp focus. The volumes of this series are published approximately on a yearly basis and each contains three to five reviews. The articles in each volume are sekcted in such a way as to be of interest both to the corrosion scientists and the corrosion technologists. There is, in fact, a particular aim in juxtaposing these interests because of the importance of mutual interaction and interdisciplinarity so important in corrosion studies. It is hoped that the corrosion scientists in this way may stay abreast of the activities in corrosion technology and vice versa. In this series the term "corrosion" is used in its very broadest sense. It includes, therefore, not only the degradation of metals in aqueous en vironment but also what is commonly referred to as "high-temperature oxidation." Further, the plan is to be even more general than these topics; the series will include all solids and all environments. Today, engineering solids include not only metals but glasses, ionic solids, polymeric solids, and composites of these. Environments of interest must be extended to liquid metals, a wide variety of gases, nonaqueous electrolytes, and other non aqueous liquids.
Download or read book Government Reports Announcements written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
