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aluminum bracket

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001734
EISBN: 978-1-62708-234-1
... Abstract An aircraft engine in which an in-flight fire had occurred was dismantled and examined. A bracket assembly fabricated from 2024 aluminum, one of several failed components, was of prime interest because of apparent heat damage. Scanning electron microscopy was used to compare laboratory...
Image
Published: 01 June 2019
Fig. 1 Aluminum alloy 2014-T6 hinge bracket that failed by SCC in service. (a) Hinge bracket. Actual size. Arrow indicates crack. (b) Micrograph showing secondary cracking adjacent and parallel to the fracture surface. Etched with Keller's reagent. 250× More
Image
Published: 01 January 2002
Fig. 37 Aluminum alloy 2014-T6 hinge bracket that failed by SCC in service. (a) Hinge bracket. Actual size. Arrow indicates crack. (b) Micrograph showing secondary cracking adjacent and parallel to the fracture surface. Etched with Keller's reagent. 250× More
Image
Published: 15 January 2021
Fig. 48 (a) Photograph of an aluminum alloy 2014-T6 hinge bracket. Arrow indicates crack location. (b) Micrograph of a cross section prepared through the fracture surface. Arrows indicate stress-corrosion cracking. Original magnification: 250× More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091674
EISBN: 978-1-62708-217-4
... Abstract Forged aluminum alloy 2014-T6 hinge brackets in naval aircraft rudder and aileron linkages were found cracked in service. The cracks were in the hinge lugs, adjacent to a bushing made of cadmium-plated 4130 steel. Investigation (visual inspection and 250X micrographs) supported...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001745
EISBN: 978-1-62708-217-4
... Abstract A 2000-T6 aluminum alloy bracket failed in a coastal environment because corrosive chlorides got between the bracket and attachment bolt. The material used for the part was susceptible to stress corrosion under the service conditions. Cracking may have been aggravated by galvanic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001903
EISBN: 978-1-62708-217-4
... in a failed control rotor spar tube assembly made of cadmium-plated AISI 4130 Cr-Mo alloy steel. Inadequate design was responsible for the failure. A lower tine of the main rotor blade cuff failed in fatigue. The rotor blade cuff was forged of 2014-T6 aluminum alloy. Initial stages of crack growth displayed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0090974
EISBN: 978-1-62708-235-8
.... It was considered probable that grain-boundary formation of aluminum nitride contributed to the failure, but the presence of this nonmetallic compound is often difficult to verify. Fig. 1 Fracture of a cast steel bracket. (a) Bracket microstructure exhibiting gross type II manganese sulfide stringer...
Image
Published: 01 June 2019
Fig. 1 Arrow indicates fretting in the cracked bracket. Material: 2000 series aluminum, T6 condition; R B 78–80. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001175
EISBN: 978-1-62708-231-0
... a lye-resistant steel should be used. The “Izett”-steel, developed by A. Fry in the Fried. Krupp works in Essen at the beginning of the 1920s, which was deoxidized (denitrated) with aluminium, has a high resistance against intercrystalline stress corrosion, which can even further be improved...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001028
EISBN: 978-1-62708-214-3
... in Fig. 13(b) , showing the base metal. A 20 kV beam was used. Fig. 17 EDX microprobe spectrum of arrow G in Fig. 13(a) , showing an embedded particle of aluminum oxide A 20 kV beam was used. Fig. 18 EDX microprobe spectrum of arrow H in Fig. 13(a) showing a glassy silicate. A20kV...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001344
EISBN: 978-1-62708-215-0
... carryover of caustic (NaOH) into the steam system. SEM-EDS analysis of a fracture surface Table 2 SEM-EDS analysis of a fracture surface Element Composition, % Iron 67.5 Chromium 17.0 Sodium 6.0 Nickel 6.0 Silicon 2.0 Calcium 1.0 Aluminum <0.5 Sulfur <0.5...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006814
EISBN: 978-1-62708-329-4
.... Multiple-pass welds introduce additional complexity as compared to single-pass welds because subsequent weld passes reheat previous passes, typically changing the mechanical properties. Different base-metal types (steel, stainless steel, aluminum, etc.) have unique characteristics that contribute...
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
... analysis, metallographic analysis, and simulated-service tests. It provides case studies for the analysis of SCC service failures and their occurrence in steels, stainless steels, and commercial alloys of aluminum, copper, magnesium, and titanium. aluminum alloys austenitic stainless steel carbon...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... fracture in 7079-T651 aluminum that failed under stress-corrosion cracking conditions in a 3.5% chloride solution. Transmission electron microscopy replica Fig. 13 Mud cracks on the fracture surface of a quenched and tempered 4340 steel exposed to a marine environment. Transmission electron...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001126
EISBN: 978-1-62708-214-3
... installed on a group of recently constructed two-story commercial buildings. Glass spandrel panels are an architectural feature, used in this case to cover the exterior surface of concrete wall panels. The construction behind a glass spandrel panel is shown in Fig. 1 . The aluminum frame supporting...
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
... and industries that have experienced SCC failures include (this list is not exhaustive): Aerospace: Aluminum alloys in structural aircraft components such as landing gear and wing components, stainless steel tubing used as part of the hydraulic or fuel systems, high-strength low-alloy steel...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001064
EISBN: 978-1-62708-214-3
... 1.59 2.00 (max) Phosphorus 0.031 0.045 (max) Sulfur 0.015 0.030 (max) Chromium 18.0 18.00–20.00 Molybdenum 0.33 NR Nickel 8.8 8.00–10.50 Copper 0.18 NR Vandium 0.04 NR Aluminum <0.05 NR Niobium <0.05 NR Titanium <0.02 NR Nitrogen … 0.10...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001703
EISBN: 978-1-62708-227-3
.... It is understood that the broken stub was very difficult to remove from the antenna, which might mean that some stretching of the internal threads within the aluminum housing of the antenna had occurred. Fig. 6 Imprint of nut on adjacent washer (×6). Alloy Identification Table 1 shows...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1