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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001019
EISBN: 978-1-62708-217-4
... fatigue crack. It was concluded that the over-all failure was initiated in the crankshaft, and the failure of the bearing resulted from that failure. Aerospace engines Chromium plating Crankshafts Overheating Roller bearings Chromium-plated steel Fatigue fracture Surface treatment related...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047835
EISBN: 978-1-62708-217-4
... electroetched marking of the articulated rods was discontinued as a corrective measure. Aerospace engines Engine components Identification Marking 4337 UNS G43370 Fatigue fracture Surface treatment related failures The articulated rod in an aircraft engine fractured after being in operation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047541
EISBN: 978-1-62708-217-4
... condition that resulted in catastrophic, brittle fracture under normal applied loads. The design was altered to eliminate the weld adjacent to the threaded portion of the rod. Aerospace engines Design Post heating Welded joints Medium-carbon steel Brittle fracture Intergranular fracture Joining...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0048257
EISBN: 978-1-62708-217-4
... in an exothermic atmosphere. It was recommended that steps be taken during heat treatment to ensure neither of the two occurred. Aerospace engines Case hardening Controlled atmosphere Exothermic reactions Surface hardness AMS 6263 UNS K44414 (Other, miscellaneous, or unspecified) failure Heat...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001606
EISBN: 978-1-62708-226-6
... was undeniably the cause of failure in each of these four austenitic stainless steel fixation devices. Metallurgical and mechanical engineering texts contain extensive sections on metal fatigue failures. Ref 9 , 10 , 11 Entire texts that address fatigue have been published. 12 This is not surprising...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0048169
EISBN: 978-1-62708-233-4
... Abstract A valve-seat retainer spring (made of 0.23 mm thick 17-7 PH stainless steel) from a fuel control on an aircraft engine was found to be broken after 3980 h of service. The two inner tabs were found to be broken off. The part was revealed to be in relative rotation against its contacting...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001299
EISBN: 978-1-62708-215-0
... for cracks during periodic maintenance overhauls. Aerospace engines Airplanes Nonmetallic inclusions 4340 UNS G43400 Fatigue fracture Background A steel piston engine crankshaft in a transport aircraft failed catastrophically during flight. Applications The massive, complex-shaped...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001023
EISBN: 978-1-62708-214-3
.... The wear had been caused by incorrect machining of the shaft splines, which prevented the bevel gear nut from locating correctly against the gear. Aerospace engines Aircraft components Bevel gears Drives Engine components Jet planes Military planes Splines 16 NCD 13 Fretting wear...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001359
EISBN: 978-1-62708-215-0
..., fused particles from striking the blade surface. Aerospace engines Fatigue strength Forgings IMI 550 Ti-4Al-4Mo-4Sn-0.5Si Surface treatment related failures Fatigue fracture Background Several high-pressure compressor blades used in the first stage of an aeroengine exhibited low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0090030
EISBN: 978-1-62708-217-4
...-30303 3. Aerospace Industries Association (AIA) Rotor Integrity Subcommittee Subteam , The Development of Anomaly Distributions for Aircraft Engine Titanium Disk Alloys , 38th American Institute of Aeronautics and Astronantics/American Society of Mechanical Engineers/American Society of Civil...
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
... fracture was caused by engine vibrations during operation of the aircraft. Fracture characteristics indicated that the fatigue would not have occurred if the initial damage had not taken place. Aerospace engines Engine components Gas turbine engines Lubrication systems Tanks Tearing 321 UNS...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001560
EISBN: 978-1-62708-217-4
... combustion products from the cartridges and corrosion products from the chamber, were analyzed using elemental analysis and x-ray diffraction techniques. Electrochemical polarization techniques were also utilized to estimate corrosion rates. Aerospace engines Aircraft components Breech chambers...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001489
EISBN: 978-1-62708-217-4
... components Nonmetallic inclusions Aerospace engines Aircraft components 304 UNS S30400 Fatigue fracture I. Introduction The investigations of an air crash concluded that the cause of the accident was fatigue failure of a retaining ring located in the third-stage compressor of the turbine engine...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001649
EISBN: 978-1-62708-234-1
... at the time of re-torque and at the time of initial torque application several years earlier. Aerospace fasteners Fractography Ti-6Al-4V UNS R56406 Ductile fracture As in many industries, aerospace systems and components are subject to time-dependent degradation. The ongoing structural...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091726
EISBN: 978-1-62708-217-4
... Abstract In January 1965, a Reaction Control System (RCS) pressure vessel (titanium alloy Ti-6Al-4V) on an Apollo spacecraft cracked in six adjacent locations. It used N2O4 for vehicle attitude control through roll, pitch, and yaw engines, and was protected from the N2O4 by a Teflon positive...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
... (PFA). The article describes the damage tolerance approach to life management of cyclic-limited engine components and lists the commonly used nondestructive evaluation methods. It concludes with an illustration on the role of NDE, as quantified by POD, in fully probabilistic life management...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
.... , Raizenne M.D. , Wallace W. , and Malherbe M.C. , Practical Experience With Damage Tolerance Based Life Extension of Turbine Engine Components , Proceedings of International Conference of Advisory Group for Aerospace Research and Development (AGARD) of NATO , AGARD-CP-393, paper 23, April...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... and effects analysis fault analysis fault equivalence probability of failure product development cycle FAILURE MODES AND EFFECTS ANALYSIS (FMEA) has evolved into a powerful tool that can be used by design engineers during all phases of product development to enhance product safety and reliability...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001030
EISBN: 978-1-62708-214-3
.... Rich D.L. and Impellizzeri L.F. , “Fatigue Analysis of Cold Worked and Interference Fit Fastener Holes,” MCAIR 76-007, in STP 637, ASTM , 1976 . 10.1520/STP27993S 3. Shigley , Mechanical Engineering Design , 1977 . 4. Aerospace Structural Metals Handbook , Battelle...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006800
EISBN: 978-1-62708-329-4
... requirements (e.g., magnetic, electrical, electronic, or thermal properties) typically supersede the mechanical property requirements. Other design disciplines include industrial, automotive, welding, mining, aerospace, nuclear, and computer engineering. Each engineering discipline requires specialized...