Download or read book Exploratory Development of High Strength Stress Corrosion Resistant Aluminum Alloy for Use in Thick Section Applications written by James T. Staley and published by . This book was released on 1970 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: An alloy has been developed which exhibits a good resistance to stress-corrosion cracking at 25 ksi or higher stress in the short-transverse direction based on 30 days exposure in the 3.5% NaCl alternate immersion test. Estimated minimum strength of three-inch thick plate exceeds the guaranteed minimum strength of the closest competing aluminum alloy by 3 ksi and the advantage increases with increasing thickness. Eccentricities in the results of 84 day alternate immersion tests and lack of data regarding performance of alloys of this type in natural environments for longer than 10 months, however, indicate that caution must be used in extrapolating the results of the accelerated tests to predict service performance. (Author).
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 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 Development of a High Strength Stress Corrosion Resistant Aluminum Alloy for Use in Thick Sections written by M. V. Hyatt and published by . This book was released on 1970 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Corrosion Science and Technology written by Mars Guy Fontana and published by . This book was released on 1970 with total page 364 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 1994 with total page 804 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 Development of High strength Aluminum Alloys with Improved Stress corrosion Resistance written by J. Corey McMillan and published by . This book was released on 1967 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the program is to develop a stress corrosion resistant high strength aluminum alloy through addition of minor elements and variations in heat treatment. In Phase I, fifteen special chemistry alloys based on the 7075 composition were prepared in plate form with additions of silver, boron, cerium, yttrium and zirconium. The materials evaluation consisted of metallographic and aging studies, stress corrosion testing and determination of mechanical and fracture properties. The silver bearing alloys, while not immune, were the only alloys to show increased resistance to stress corrosion cracking in the T6 temper. Overaging treatments improved the stress corrosion resistance of all alloy combinations tested. Mechanical property evaluations and transmission electron microscopy studies indicate that silver additions retard the rate of overaging and promote a finer dispersion of M' precipitate, which allow these materials to attain stress corrosion resistance without large decreases in tensile strength. However, the increased quench sensitivity of silver-bearing alloys may limit this strength advantage to thinner sections unless other changes are made in chemical composition. On the basis of stress corrosion, fatigue, fracture toughness, and strength requirements, five step-aged special chemistry alloys are proposed for Phase II testing. (Author).
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 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:
Download or read book Metals Engineering Quarterly written by and published by . This book was released on 1973 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Considerations in the Use of 5000 Series Aluminum Alloys written by C. H. Maak and published by . This book was released on 1961 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents information concerning the general nature of the series of aluminum alloys containing magnesium as the main alloying element; discusses the individual forms in which they are offered to users by aluminum producers, and recommends specific alloys and tempers for each form; and indicates aspects of stress corrosion cracking, arc welding, and forming which the design engineer should consider.
Download or read book Research on Technological Innovation Management and Policy written by Richard S. Rosenbloom and published by JAI Press(NY). This book was released on 1986 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 6 of Research on Technological Innovation, Management and Policy contains five papers on strategic change in firms and industries. All five discuss aspects of the interrelationships between technology strategy, competitive strategy, and organization and management. The first two address these at a level of the industry; the next two at firm level; in the final chapter, the level of analysis is primarily the technology. These five chapters are illustrative of themes in current research that are shaping the field of strategic management technology and innovation. They build well on earlier work in the field and thereby support its further empirical and theoretical development. They also provide useful insights for practicing managers faced with the challenges of changing technologies and a rapid rate of innovation.
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 Development of High strength Aluminum Alloys with Improved Stress Corrosion Resistance phase 2 written by J. Corey McMillan and published by . This book was released on 1968 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seawater Corrosion Handbook written by Mildred Schumacher and published by William Andrew. This book was released on 1979 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Environmental Characterization of Conventional and Advanced Aluminum Alloys for Selection and Design Phase 1 Literature Review written by and published by . This book was released on 1984 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
