Download or read book Evaluation of Engineering Properties of Al Li Alloy X2096 T8a3 Extrusion Products written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-31 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical, thermal fatigue and stress corrosion properties were determined for the two lots of Al-Li X2096-T8A3 extruded beams. Based on the test results, the beams were accepted as the construction material for fabrication of the Hubble Space Telescope new Solar Array Support Structure.Flom, Y. and Viens, M. and Wang, L.Goddard Space Flight CenterALUMINUM-LITHIUM ALLOYS; SPACECRAFT CONSTRUCTION MATERIALS; HUBBLE SPACE TELESCOPE; BEAMS (SUPPORTS); CORROSION TESTS; FATIGUE TESTS; THERMAL CYCLING TESTS; STRESS CORROSION; THERMAL FATIGUE; MECHANICAL PROPERTIES; THERMODYNAMIC PROPERTIES; SOLAR ARRAYS; EXTRUDING

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2000 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structure Property Correlations in Al Li Alloy Integrally Stiffened Extrusions written by Stephen J. Hales and published by DIANE Publishing. This book was released on 2001 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Al Cu Li Alloy 2090 Near Net Shape Extrusion written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminum-lithium (Al-Li) alloys near net shape extrusions are being evaluated for potential application in launch vehicle structures. The objective of this study was to determine tensile and fracture properties, corrosion resistance, and weldability of integrally stiffened panels of Al-Cu-Li alloy 2090 in the T8 temper. The microstructure was pre-dominantly unrecrystallized. Texture analyses revealed the presence of fiber components in the stiffeners and a combination of fiber and rolling components in the skin. Variations in grain morphology and texture through the extruded cross section were correlated with the tensile, fracture, and corrosion behavior. Tensile strengths at room and cryogenic temperatures of the 2090 extrusions were similar to other 2090 product forms and were higher than 2219-T87, the primary structural material in the Space Shuttle external tank; however, ductilities were lower. The fracture resistance of the 2090 extrusion was lower than 2219-T87 plate at room temperature. At cryogenic temperatures, tensile ductility and fracture behavior of the 2090 extrusion were similar to other 2090 product forms but were lower than 2219-T87 plate. The exfoliation and stress corrosion resistance of the 2090 extrusion compared favorably with the characteristics of other 2090 product forms. The weldability and weldment properties of the extrusions were similar to 2090 and 2219 plates. Birt, M. J. and Domack, M. S. and Hafley, R. A. and Pollock, W. D. Langley Research Center...