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alloy 8090
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in Aluminum-Lithium Alloys
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 29 Average springback from 90° bend of aluminum-lithium alloy 8090 and two conventional alloys. All three alloys were tested in the as-received condition.
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Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001063
EISBN: 978-1-62708-162-7
..., including alloy 2090, alloy 2091, alloy 8090, alloy CP276, and Weldalite 049. The article also lists the chemical compositions, physical properties, fabrication characteristics, corrosion performance, and general applications of these alloys. A comparison of alloy properties is represented graphically...
Abstract
Aluminum-lithium alloys have been developed primarily to reduce the weight of aircraft and aerospace structures. This article commences with a discussion on the physical metallurgy and development of aluminum-lithium alloys. It focuses on major commercial aluminum-lithium alloys, including alloy 2090, alloy 2091, alloy 8090, alloy CP276, and Weldalite 049. The article also lists the chemical compositions, physical properties, fabrication characteristics, corrosion performance, and general applications of these alloys. A comparison of alloy properties is represented graphically.
Image
Published: 01 January 2005
Fig. 14 True-stress/true-strain data for an Al-8090 alloy deformed in tension at 520 °C and a true strain rate of 7.8 × 0 −4 s −1 . After Ref 16
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in Aluminum-Lithium Alloys
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 2 Comparison of creep crack growth rates for aluminum-lithium alloy extrusions with those for other aluminum alloys. Alloy 8090 contains 2.5% Li, 1.5% Cu, 1.0% Mg, 0.12% Zr, and a balance of aluminum. T-L, crack plane and growth directions parallel to extrusion direction; L-T, crack plane
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Image
in Physical Metallurgy Concepts in Interpretation of Microstructures
> Metallography and Microstructures
Published: 01 December 2004
Fig. 42 Time-temperature diagram of precipitation responses of an aluminum-lithium alloy (alloy 8090) for volume formation of the S phase (Al 2 CuMg). This practical isothermal transformation curve is based on a real commercial-sized component that has been exposed to aging temperatures
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Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001420
EISBN: 978-1-62708-173-3
... strengths than other aluminum-lithium alloys ( Table 2 ). At lower copper/magnesium ratios, the S ′ phase is favored, and lower strengths are achieved (e.g., alloys 8090 and 2091). In the absence of copper, the δ′ phase becomes predominant, resulting in even lower strength (e.g., Soviet alloy 01420...
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in Aluminum-Lithium Alloys
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 27 S-N fatigue data for 8090-T651 and selected 2 xxx alloys. Stress ratio ( R ), 0.1. Specimens tested in laboratory air. (a) Smooth specimens. (b) Notched specimens ( K t = 3)
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Book Chapter
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006594
EISBN: 978-1-62708-210-5
... are further divided as (see also Table 1 ): Low-Cu, high-Mg, and high-Li quaternary alloys (e.g., 8090) Medium-Cu, low-Mg, and high-Li quaternary alloys (e.g., 2090) Medium-Cu, low-Mg, medium-Li quaternary alloys (e.g., 2099, 2196, 2297, 2397) High-Cu, low-Mg, and low-Li quaternary alloys (e.g...
Image
Published: 01 January 1996
Fig. 8 (a, b) Schematics of crack shapes observed in different orientations of fatigue tests in 7010 aluminum alloy. (c) The variation of aspect ratio with crack growth in 8090 Al-Li alloy, before and after shot peening
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Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003129
EISBN: 978-1-62708-199-3
... Al-Li alloy 8090 (Al-2.5Li-1.0Cu-0.7Mg-0.12Zr). The P/M Al-Li alloys exhibit a 4.4% increase in specific modulus over 8090. Neither the Al-Li or Al-Be-Li P/M alloys have achieved commercial success, largely because of the success of I/M Al-Li alloys and the development of metal-matrix composites...
Abstract
This article provides an overview of the composition and properties of powder metallurgy (P/M) aluminum powders for pressed and sintered parts. It includes the steps involved in the processing of high-performance P/M alloys. The article describes the classes of high-performance P/M alloys, including corrosion-resistant alloys (stress-corrosion cracking), elevated-temperature alloys, and low density/high-stiffness alloys.
Image
Published: 30 November 2018
Fig. 44 Effect of Na + K content on fatigue crack propagation rate of 2090 and 8090 alloy sheets
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Image
Published: 01 June 2024
Fig. 10 SEM fractographic and optical metallographic characteristics of fatigue crack growth in 8090-T81 aluminum-lithium alloy sheet under constant-amplitude (CA) and variable-amplitude (VA) loading ( Ref 47 ). R s , surface roughness profile. The VA loading was a complex simulated flight
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Image
Published: 01 June 2024
Fig. 39 Fractography and crack-path morphology for the longitudinal-transverse (crack-divider) orientation, typical of alloys that show a fracture-mode transition between ambient and liquid nitrogen temperatures (2091-T8X, 8090-T351, 8091-T351), showing (a–c) ductile microvoid coalescence
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Image
Published: 01 June 2024
Fig. 40 Fractography and crack-path morphology for the longitudinal-transverse (crack-divider) orientation, typical of alloys that show no fracture-mode transition between ambient and liquid nitrogen temperatures (2090-T8E41, 2091-T351, 8090-T8X, 8091-T8X), showing transgranular shear fracture
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Book Chapter
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006531
EISBN: 978-1-62708-207-5
... Solution heat treated, cold worked, and artificially aged T81 Solution heat treated, cold worked approximately 1%, and artificially aged T82 Solution heat treated by the user, controlled stretched with a minimum permanent set of 2%, and artificially aged (alloy 8090) T832 Solution heat treated...
Book: Fatigue and Fracture
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002351
EISBN: 978-1-62708-193-1
... for 8090 (and indeed for most other wrought aluminum alloys) is that the precipitate sheets (and associated precipitate free zones PFZ's) promote debonding ahead of the crack tip. This debonding tends to both relax the constraint and blunt the crack, giving rise to an apparent fracture toughness increase...
Abstract
This article reviews the basic processes of fracture and fatigue and shows how these processes occur in materials. It presents an overview of the fatigue mechanisms and some related models for appropriate classes of materials, such as carbon and alloy steels, aluminum alloys, and titanium alloys. Microstructural factors that affect the fracture toughness of these materials, are discussed. The article describes fatigue crack propagation (FCP) mechanisms and related models. It also analyzes FCP behavior in these materials, with an emphasis on general microstructural factors.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001446
EISBN: 978-1-62708-173-3
... that are of interest to the aerospace industries, that is, 7010 ( Ref 15 ), 7475 ( Ref 16 , 17 ) and 8090 ( Ref 18 , 19 , 20 , 21 ). No clear guidelines exist as to the best practice for welding these alloys, because researchers have investigated many techniques and the results point in sometimes conflicting...
Abstract
Diffusion welding involves minimal pressurization, but relatively high temperatures and long periods of time. This article discusses the process variants of diffusion welding: solid-phase and liquid-phase processes. It describes the diffusion welding of carbon and low-alloy steels, high-strength steels, stainless steels, and aluminum-base alloys. The article provides a discussion on dissimilar metal combinations, such as ferrous-to-ferrous combinations, nonferrous-to-nonferrous combinations, ferrous-to-nonferrous combinations, and metal-ceramic joining.
Book: Composites
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003371
EISBN: 978-1-62708-195-5
... aluminum-lithium alloys, such as 8090 High-temperature aluminum alloys, such as aluminum-iron- and aluminum-scandium- base alloys Most of the earlier studies have focused on understanding of the composite behavior rather than developing newer aluminum alloys. Work on developing a newer matrix...
Abstract
Metallic matrices are essential constituents for the fabrication of metal-matrix composites (MMCs). This article describes three different classes of aluminum alloys, namely, commercial aluminum alloys, low-density and high-modulus alloys, and high temperature alloys. It presents typical tensile properties and fracture toughness of the selected heat treatable aluminum alloys in a table. Titanium alloys are very attractive for MMC applications, due to their higher strength and temperature capability compared to aluminum alloys. The article tabulates the effect of heat treatment on room-temperature properties and tensile properties of Ti-25Al-17Nb alloy sheet.
Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003126
EISBN: 978-1-62708-199-3
... Abstract This article is a comprehensive collection of property data for wrought aluminum and aluminum alloys. Data are provided for the physical properties and mechanical properties of wrought aluminum and aluminum alloys. The listing also includes values that indicate the effect...
Abstract
This article is a comprehensive collection of property data for wrought aluminum and aluminum alloys. Data are provided for the physical properties and mechanical properties of wrought aluminum and aluminum alloys. The listing also includes values that indicate the effect of temperatures on tensile strength, yield strength, and elongation, and the mechanical properly limits for aluminum alloy die forgings, non-heat-treatable and heat-treatable aluminum alloy sheets and plates, and non-heat-treatable aluminum alloy extruded wires, rods, bars, and shapes.
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006510
EISBN: 978-1-62708-207-5
... Abstract Weldability is a function of three major factors: base material quality, welding process, and design. This article focuses on base-metal weldability of aluminum alloys in terms of mechanical property degradation in both the weld region and heat-affected zone, weld porosity...
Abstract
Weldability is a function of three major factors: base material quality, welding process, and design. This article focuses on base-metal weldability of aluminum alloys in terms of mechanical property degradation in both the weld region and heat-affected zone, weld porosity, and susceptibility to solidification cracking and liquation cracking. It provides an overview on welding processes, including gas metal arc welding, gas tungsten arc welding, resistance spot and seam welding, laser beam welding, and various solid-state welding processes. A review on joint design is also included, mainly in the general factors associated with service weldability (fitness). The article also provides a discussion on the selection and weldability of non-heat-treatable aluminum alloys, heat treatable aluminum alloys, aluminum-lithium alloys, and aluminum metal-matrix composites.
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