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6061-T6

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046418
EISBN: 978-1-62708-234-1
... Abstract Equipment in which an assembly of in-line cylindrical components rotated in water at 1040 rpm displayed excessive vibration after less than one hour of operation. The malfunction was traced to an aluminum alloy 6061-T6 combustion chamber that was part of the rotating assembly. Analysis...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046015
EISBN: 978-1-62708-235-8
... Abstract A two-section extension ladder, made from 6061-T6 aluminum alloy extrusions and stampings that were riveted together at each rung location and at the ends of side rails, broke in service after having been used at the sites of several fires by the fire department of a large city...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047080
EISBN: 978-1-62708-235-8
... Abstract Several of the aluminum alloy 6061-T6 drawn seamless tubes (ASTM B 234, 2.5 cm (1.0 in.) OD with wall thickness of 1.7 mm (0.065 in.)) connecting an array of headers to a system of water-cooling pipes failed. The tubes were supplied in the O temper. They were bent to the desired...
Image
Published: 01 June 2019
Fig. 1 Corrosion (a) of aluminum alloy 6061-T6 aircraft fuel line (arrow). (b) Close-up of corrosion on fuel line. Note pitting and corrosion products. (c) Intergranular corrosion of the fuel line at area A from (a) More
Image
Published: 01 June 2019
Fig. 1 Aluminum alloy 6061-T6 combustion chamber damaged by cavitation erosion. The chamber rotated in water at moderate speed. (a) Overall view of the chamber. (b) and (c) Micrographs of cross sections of the chamber wall showing typical cavitation damage. 100 and 500x, respectively More
Image
Published: 01 June 2019
Fig. 1 Extruded right-hand side rail of aluminum alloy 6061-T6 that failed from ductile overload fracture. Dimensions given in inches More
Image
Published: 01 June 2019
Fig. 1 Failed aluminum alloy 6061-T6 connector tube from a water-cooling system. (a) Macrograph of the tube showing blow out that appears to involve the loss of a single large grain. (b) Structure near the neutral axis of the bend. The huge grain at lower left (light area) occupied almost More
Image
Published: 01 January 2002
Fig. 44 Tensile fractures of aluminum alloy (6061-T6) sections with various width-thickness ( w / t ) ratios: (a) Diffuse necking ( w / t = 1). (b) Diffuse necking with w / t = 3.85. (c) Local necking superimposed on a diffuse neck with w / t = 12 with magnified side view 1.5├Ś. Courtesy More
Book Chapter

Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006398
EISBN: 978-1-62708-217-4
... Abstract Inspections and microstructural analysis revealed intergranular corrosion of 6061-T6 aluminum alloy aircraft fuel line beneath ferrules. The cause of the corrosion was traced to the fuel line marking process, which involved electrolytic labeling. Although subsequent rinsing of the fuel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047072
EISBN: 978-1-62708-217-4
... aerodynamic shell and an inner stiffener shell, both of 1.3 mm (0.050 in.) thick aluminum alloy 6061-T6, and four attachment clips of 1 mm (0.040 in.) thick alclad aluminum alloy 2024-T42. Each clip was joined to the outer shell by 12 spot welds and was also joined to the stiffener. Analysis (visual...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091669
EISBN: 978-1-62708-227-3
... of only aluminum alloys 6061-T6 and T651 and 2024-T6, T62, and T851. Fittings Fuel lines Marine environments Missiles 2017 UNS A92017 2014 UNS A92014 Stress-corrosion cracking During a routine inspection, cracks were discovered in several aluminum alloy coupling nuts ( Fig. 1a...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047636
EISBN: 978-1-62708-217-4
... Abstract Several elbow subassemblies comprising segments of oil-line assemblies that recycled aircraft-engine oil from pump to filter broke in service. The components of the subassemblies were made of aluminum alloy 6061-T6. Two subassemblies were returned to the laboratory to determine cause...
Image
Published: 01 January 2002
Fig. 17 Light micrograph showing a SiC grinding-abrasive particle (arrow) lodged in a weldment in 6061-T6 aluminum etched with aqueous 0.5% hydrofluoric acid More
Image
Published: 01 January 2002
Fig. 56 Elliptical dimples (a) on the fracture surface of ductile torsion fracture of cast steels Source: Ref 42 . (b) Mode II dimples on wrought 6061-T6 aluminum tensile specimen. Courtesy of P. Werner, University of Tennessee More
Image
Published: 01 January 2002
Fig. 13 Light micrograph showing a very large shrinkage gap between the phenolic resin mount (PM) and a specimen of 6061-T6 aluminum etched with aqueous 0.5% hydrofluoric acid. Note the metal flow at the specimen edge (revealed using Nomarski DIC illumination) and the water stains (arrows More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... details at the edge, or, worse yet, drip onto the objective (in an inverted microscope), causing loss of image clarity or even damage. Figure 13 shows a large shrinkage gap between a phenolic mount and a piece of 6061-T6 aluminum etched with dilute aqueous hydrofluoric acid. Nomarski differential...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... carefully, and obscure the microstructural details at the edge, or, worse yet, drip onto the objective (in an inverted microscope), causing loss of image clarity or even damage. Figure 5 shows a large shrinkage gap between a phenolic mount and a piece of 6061-T6 aluminum etched with dilute aqueous...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... is more detrimental than long-transverse stressing. For example, Fig. 7 shows a fractured lug of a forged 7075-T6 aluminum alloy with cracks that initiated because of stresses acting across the short-transverse grain direction. Intergranular SCC developed when assembly of a pin in the machined hole...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... of the heat exchangers in the cryogenic unit, and a leak was found in a vertical nominal pipe size (NPS) 10, Schedule 80, 6061 aluminum alloy pipe. This pipe was the first one that the gas passed through, which operated at a temperature below the melting point of mercury. The pipe had been girth welded...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... with respect to each other but also crystallographic differences. For example, 7000-series aluminum alloys are susceptible to SCC when solution treated and aged (T6 condition), yet the same alloy can be safely used when solution treated and overaged (T7 condition) ( Ref 8 , 9 ). (An aluminum alloy with a T6...