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aluminum alloy 1060

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Published: 01 June 2019
Fig. 1 Opened crack (a) in aluminum alloy 7075-T651 ejection seat swivel fixture that failed by SCC. Note crack propagation markings that suggest the crack initiated on the inside wall of the fixture and woody appearance of the fracture. (b) Higher-magnification view of fracture surface from More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006387
EISBN: 978-1-62708-217-4
... Abstract A routine examination on a seat ejection system found that the catapult attachment swivel fabricated from 7075-T651 aluminum alloy plate contained cracks on opposite sides of the part. This swivel, or bath tub, does not experience extreme loads prior to activation of the catapult...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... topography, which is shown at higher magnification (11,000×) in Fig. 25(b) . The area of irregular topography resembles the knobbly structure observed by Stock and Thompson ( Ref 17 ) on the fracture surface of aluminum alloys subjected to ballistic impact. This may be evidence of melting, as suggested...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
...) Excellent (c) Good or not recommended (f) Asp fasteners Alloy steel Cadmium/nickel Good (g) Excellent Excellent Excellent Pull-type lockbolts 7075 Aluminum Anodized Not recommended Excellent Excellent Not recommended (a) Blind rivets with controlled shank expansion. (b...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... combined stresses. A common manufacturing discrepancy is illustrated and discussed in this section. During an assembly operation involving HL 22-8 fasteners, the fastener heads would sometimes crack ( Fig. 2a, b ). Aluminum alloy 7075-T73 nuts were being installed on type 7075-T6 fasteners...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... of grains by heat treatment. It is thus more important to control the processing of such alloys to avoid forming an undesirable grain size. Alloys that contain grain-growth inhibitors may be subject to excessive and nonuniform grain growth if heated excessively. Aluminum is widely used as a deoxidizer...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... ( Fig. 1a , b ). Parabolic or elongated shear dimples occur from torsional loading ( Fig. 1c ) or from mode II (in-plane) shear. However, metallic materials can behave in a ductile manner but not exhibit the classical dimple-rupture morphology, as shown in Fig. 1(d) for a cast aluminum alloy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... manner, but not exhibit the classical dimple-rupture morphology, as shown in Fig. 1(d) for a cast aluminum alloy. The cast aluminum alloy fracture surface should show dimples in the aluminum matrix (original dendrites), but can be difficult to see because fracture surface morphology is impacted...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... source of fretting problems. It has been reported ( Ref 12 – 14 ) that there is no such thing as a static joint on an aircraft. An aircraft structure is largely an assemblage of aluminum and steel components riveted together or joined by fasteners. Even in a simple riveted joint, there are at least three...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
... a practical and theoretical aspect, alloy steels are a better materials selection than carbon steels because of the deeper-hardening characteristics of alloy steels. The most encompassing causes of failures of lifting equipment are poor manufacturing, assembly, and maintenance practices. Inferior...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006825
EISBN: 978-1-62708-329-4
... hydroxide). Below 570 °C (1060 °F), the main constituent of the scale formed on carbon and low-alloy steel is magnetite (Fe 3 O 4 ), whereas above 570 °C (1060 °F), it is wustite (FeO). The scale formed on T91 steel, which has special significance as a tube material for supercritical boilers, is somewhat...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... surfaces, and black deposits and white deposits were found on steam-side surfaces. Subsequent analyses by scanning electron microscopy (SEM) and x-ray diffraction identified magnetic iron oxide (Fe 3 O 4 ) as the major constituent in the black deposit, and a complex sodium aluminum silicate as the major...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
...-stressed gears, SAE 1040, 1050, and 1060 are in common usage. For more demanding and larger applications, low alloys such as SAE 4140 and 4340 are used, because the constituents result in greater depth of hardness and increased toughness. Most of the alloys have an “H” suffix, such as SAE 4140H or 4340H...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
.... The formation of these products and the proportions of each are dependent on the time and temperature cooling history of the particular alloy and the elemental composition of that alloy. The transformation products formed are typically illustrated with the use of transformation diagrams, which show...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
...-2009-01; dynamic Hertzian pressures at 10 6 cycles are p H dyn = ~1500 N/mm², following ISO 281 ( Ref 1 , 4 ). Alloying with elements such as manganese and molybdenum improves the hardness diffusion within the thickness of the parts and its distribution for large-section parts (large-section...