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 1971 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 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 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 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 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 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:
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 Modulus Corrosion Resistant Aluminum Alloys written by Michael J. Koczak and published by . This book was released on 1982 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: A program of basic research has been undertaken with the overall goal of establishing quantitative processing-microstructure-mechanical behavior relationships in fully-dense duplex Al-Zn-Mg-Al-Mn alloys produced by powder metallurgy. Initial attention has been directed to powder processing, consolidation, mechanical property and corrosion response. Microstructures have been characterized in the powder, hot compacted billets, forgings and extrusions. Mechanical properties of primary interest were modulus, strength, impact and ductility. The goal of this highly exploratory program was to develop a duplex, aluminum alloy in which an MnAl6 aluminide dispersant phase provided for modulus/strength contributions, while the Al-Zn-Mg matrix imparted ductility and toughness.
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 Aluminium Alloys written by Subbarayan Sivasankaran and published by BoD – Books on Demand. This book was released on 2017-12-21 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major issue of energy saving and conservation of the environment in the world is being emphasized to us to concentrate on lightweight materials in which aluminium alloys are contributing more in applications in the twenty-first century. Aluminium and its related materials possess lighter weight, considerable strength, more corrosion resistance and ductility. Especially from the past one decade, the use of aluminium alloys is increasing in construction field, transportation industries, packaging purposes, automotive, defence, aircraft and electrical sectors. Around 85% is being used in the form of wrought products, which replace the use of cast iron. Further, the major features of aluminium alloy are recyclability and its abundant availability in the world. In general, aluminium and its related materials are being processed via casting, drawing, forging, rolling, extrusion, welding, powder metallurgy process, etc. To improve the physical and mechanical properties, scientists are doing more research and adding some second-phase particles in to it called composites in addition to heat treatment. Therefore, to explore more in this field, the present book has been aimed and focused to bridge all scientists who are working in this field. The main objective of the present book is to focus on aluminium, its alloys and its composites, which include, but are not limited to, the various processing routes and characterization techniques in both macro- and nano-levels.
Download or read book Development of Aluminum Base Alloys section i written by J. P Lyle (Jr) and published by . This book was released on 1966 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is possible to fabricate high quality, high strength hot-worked products of heat treatable aluminum alloys from prealloyed atomized powders. Preliminary and limited testing indicates that extrusions made this way with appropriate heat treatments have the following combination of properties: (1) Tensile and yield strengths 12-36% higher than conventional 7075-T73 combined with resistance to stress corrosion cracking (SCC) equal to 7075-T73, (2) Tensile and yield strengths 11-25% higher than conventional 7178-T6 combined with resistance to SCC equal resistance to SCC equal to 7178-T6, (3) Tensile and yield strengths equal to conventional 7178-T6, combined with better resistance to SCC than 7178-T6, (4) Tensile strengths of 125,000 psi and yield strength: Density ratios of 1.16 million inches, (5) High resistance to exfoliation, (6) Tensile and yield strengths higher than X2020-T6 from -112 to at least 212 F and higher than 7075-T6 from -112 to at least 400 F, (7) Fatigue strengths (smooth and notched specimens) at least as high as 7075-76, (8) Toughness in strongest tempers inferior to 7075-T6 and 7178-T6, but toughness may be made competitive by more extensive aging, and (9) Poor fusion weldability (low strength and ductility) due to porosity.
Download or read book Stress Corrosion of High Strength Aluminum Alloys written by and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aluminium Alloys written by Giulio Timelli and published by BoD – Books on Demand. This book was released on 2022-07-20 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminium alloys are among the most interesting materials being adopted for weight reduction and recycling benefits. The increasing importance of aluminium alloys over the years is due to their widespread use and applications in automotive, aerospace, food handling, building, heat exchange, and electrical transmission industries. Their high strength/weight ratio makes aluminium alloys useful for applications where simultaneous high strength and lightness are needed.This book provides a comprehensive review of the design and development of innovative aluminium alloys and composites. Chapters discuss manufacturing processes and applications and are heavily illustrated to make the concepts clear.
