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military specifications

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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
... expulsion bladder. Investigation (visual inspection, pressure testing of 10 similar vessels, and chemical testing of the N2O4) supported the conclusion that the failure was due to stress corrosion from the N2O4, and specifically from a specification change in the military specification MIL-P-26539...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0092155
EISBN: 978-1-62708-221-1
... Abstract Component slippage in the left-side final drive train of a tracked military vehicle was detected after the vehicle had been driven 13,700 km (8500 miles) in combined highway and rough-terrain service. The slipping was traced to the mating surfaces of the final drive gear...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001795
EISBN: 978-1-62708-241-9
... Iron Bal Chemical composition of the outer ring, inner ring, and balls of the bearing (conforming to specifications for 100C6 steel) Table 2 Chemical composition of the outer ring, inner ring, and balls of the bearing (conforming to specifications for 100C6 steel) Elements Weight...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006817
EISBN: 978-1-62708-329-4
.... Developed in test programs during the late 1970s, the processes were formally published in military standards and military specifications in the mid-1980s. In separate but parallel work in the early 1980s, the Electric Power Research Institute, an industry research group for the U.S. electrical power...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001022
EISBN: 978-1-62708-214-3
... was in the T6 condition, as required (ASTM B247). Simulation Tests It is known that heat treatment conditions can affect the corrosion and stress-corrosion susceptibility of this type of alloy. U.S. military specification MIL-H-6088D, “Heat Treatment of Aluminum Alloys,” gives an accelerated corrosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003504
EISBN: 978-1-62708-180-1
... for the other. Support contractors and equipment vendors learned to use these processes when they sold new equipment to the U.S. military. Developed in test programs during the late 1970s, the processes were formally published in military standards and military specifications in the mid-1980s. In separate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001706
EISBN: 978-1-62708-217-4
... , ( 1990 ) 6. Military Specification MIL-C-16173E , Corrosion Preventive Compounds-Solvent Cutback Cold Application, (1993) 7. Military Handbook 5F , Metallic Materials & Elements for Aerospace Vehicle structures, Vol.1 , pp 2 –31 to 2– 51 ( 1990 ) Selected References Selected...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001027
EISBN: 978-1-62708-214-3
... was recommended, along with nondestructive inspection of the region at intervals determined by fractographic analysis of the fatigue crack growth. Bolted joints Drives Helicopters Military planes Shafts (power) 4340 UNS G43400 Corrosion fatigue Background The 4340 steel main rotor yoke...
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
..., in Acquisition Streamlining and Standardization Information System (ASSIST) [database online] (Philadelphia, Department of Defense Single Stock Point for Military Specifications and Standards, DODSSP, 2002 , [cited April 2002 ]), available at http://dodssp.daps.mil/assist.htm 32. Defense...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001292
EISBN: 978-1-62708-215-0
... Abstract A crack was detected in one arm of the right-hand horizontal brace of the nose landing gear shock strut from a large military aircraft. The shock strut was manufactured from a 7049 aluminum alloy forging in the shape of a delta. A laboratory investigation was conducted to determine...
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
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001906
EISBN: 978-1-62708-217-4
... Abstract Suspension lugs fabricated from AISI 4340 steel used to facilitate loading of bombs onto the underside of military aircraft could not sustain required loads during routine proof load testing. Three failed lugs underwent visual examination, chemical analysis, metallography, hardness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001910
EISBN: 978-1-62708-217-4
... not in the nitrided condition as was required. This resulted in lower wear and fatigue resistance. These components also had a silicon content nearly double of that specified. The high silicon content lowered the notch tensile strength and toughness of the components. Breech bolts Weapons Military...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001021
EISBN: 978-1-62708-214-3
... to be determined for the configuration of interest. Crack propagation Fatigue life Jet planes Military planes Wings (aircraft) AU4SG Fatigue fracture Background Following the crash of a Mirage III-0 aircraft, a small crack was detected in a bolt hole in the wing main spar. Because this area...
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
...). Control of machining parameters to prevent formation of brittle martensite, use of galvanically compatible fasteners, and use of an alternate lubricant were recommended. Airframes, corrosion Fasteners Jet planes Marine environments Military planes Solid lubricants Ti-6Al-4V UNS R56406 Stress...
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
... Abstract Several compressor disks in military fighter and trainer aircraft gas turbine engines cracked prematurely in the bolt hole regions. The disks were made of precipitation-hardened AM355 martensitic stainless steel. Experimental and analytical work was performed on specimens from...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001291
EISBN: 978-1-62708-215-0
... for fatigue crack growth during service. It was recommended that the damaged undercarriage struts be withdrawn from service pending further analysis and development of a repair technique. Crack propagation Military planes 35NCD16 Surface treatment related failures Intergranular fracture Fatigue...
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
... of a fastener system is to transfer load. Many types of fasteners and fastening systems have been developed for specific requirements, such as higher strength, easier maintenance, better corrosion resistance, greater reliability at high or low temperatures, or lower material and manufacturing costs...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001025
EISBN: 978-1-62708-214-3
... that the inspection interval be reduced to one-third of its original duration for the current level of inspection reliability, or that inspection procedures be improved in order that cracks substantially smaller than 13 mm (0.5 in.) can be reliably detected. Forgings Military planes 2014-T61 UNS A92014...
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
... to facilitate the analysis. This article describes the methodology for performing an FMEA. The overview section describes the process with the specific example of a hot water heater, followed by a discussion of the role of FMEA in the design process. The second section describes the analysis procedures...