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UNS A97075

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001541
EISBN: 978-1-62708-235-8
... proved the crack to be a forging defect called a cold shut. Because defects of this type are usually detected when the raw forging is inspected, this occurrence was considered to be an isolated instance. Cold shuts Cracking (fracturing) Forgings 7075-T6 UNS A97075 Metalworking-related failures...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091809
EISBN: 978-1-62708-217-4
... weeks. No recommendations were made. Bacterial corrosion Microbial induced corrosion 7075 UNS A97075 Biological corrosion An early case of MIC on aluminum was identified in aircraft wing tank failures in the 1950s. In this case, water condensed into the fuel tanks during flight led to...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006413
EISBN: 978-1-62708-217-4
...-corrosion cracks which were present before the landing. It was recommended that an inspection for SCC be made of all pylon struts with a similar service life. Landing gear Scanning electron microscopy Stresses 7075 UNS A97075 Stress-corrosion cracking A pylon strut was submitted for failure...
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
.... Accessories Aircraft components Scanning electron microscopy Swivels 7075 UNS A97075 Intergranular corrosion Stress-corrosion cracking A routine examination on a seat ejection system found that the catapult attachment swivel contained cracks on opposite sides of the part. This swivel, or bath tub...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0046146
EISBN: 978-1-62708-217-4
... mechanical properties. Aircraft components Forgings Landing gear 7075-T73 UNS A97075 Fatigue fracture The torque-arm assembly for an aircraft nose landing gear ( Fig. 1a ) failed after 22,779 simulated flights. The part, made from an aluminum alloy 7075-T73 forging, had an expected life of...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006402
EISBN: 978-1-62708-217-4
... Wings (aircrafts) 7075 UNS A97075 Intergranular corrosion New aircraft wing panels extruded from 7075-T6 aluminum were reported to be discolored, exhibiting an unusual pattern of circular black interrupted lines ( Fig. 1a ). The black marks were coherent with the metal and could not be removed by...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001298
EISBN: 978-1-62708-215-0
... plating removal by acid etching. Post-plating baking operations subsequently reduced the fatigue strength of the spar. Chemical etching Fatigue strength Mechanical properties Rotor blades 7075-T7351 UNS A97075 Pitting corrosion Fatigue fracture Surface treatment related failures...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001366
EISBN: 978-1-62708-215-0
... Vanes 7075-T6 AMS 4126 UNS A97075 Fatigue fracture Selected Reference • Fatigue Failures , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 700 – 727 10.31399/asm.hb.v11.a0003544 An AMS 4126 (7075-T6) aluminum alloy impeller...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047199
EISBN: 978-1-62708-234-1
... superior to an elevated-temperature quench to minimize exfoliation for 7075 forgings in the T6 temper. Forgings Grain structure Weapons 7075-T6 UNS A97075 Exfoliation corrosion Heat treating-related failures The lower receiver of the M16 rifle is an anodized forging of aluminum alloy 7075...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001600
EISBN: 978-1-62708-217-4
... controlled especially at the critical areas of the web, to assure complete coverage and proper compressive residual stresses. Shot peening 7075 UNS A97075 Fatigue fracture References 1. Aluminum: Properties and Physical Metallurgy...