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Fracture characteristics

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001459
EISBN: 978-1-62708-234-1
.... Bend properties Corrosion fatigue Fatigue (materials) Fracture characteristics Mechanics Stresses Torsional fatigue Irons and steels Fatigue fracture Introduction In carrying out an investigation into the cause of breakdown of some engine or machine that has been damaged or wrecked...
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Published: 01 June 2019
Fig. 6 Electron fractograph of fracture characteristics in area of crack nucleus (1000 ×). More
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Published: 01 December 1992
Fig. 7 Scanning electron micrograph showing typical fracture characteristics. From center of fracturesurface, short leg of as-fractured bolt. More
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Published: 01 June 2019
Fig. 4 Peripheral regions of fracture showing intergranular characteristics. 1300 × More
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Published: 01 June 2019
Fig. 3 Fracture mode of brittle cleavage and ductile dimple characteristics under SEM examination at ×1000 More
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Published: 30 August 2021
Fig. 39 Microstructural characteristics of overheating. (a) Test fracture and (b) tensile-bar fracture from an overheated forged liner made from AISI H12 tool steel. Original magnification of both: 2×. (c) Micrograph illustrating the very coarse martensitic grain structure due to overheating More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0047840
EISBN: 978-1-62708-223-5
... by metallographic examination. A microstructure of fine tempered martensite containing some carbide particles was exhibited by the core material away from the hole. Brittle fracture characteristics with beach marks were exhibited by the fracture surfaces which is characteristic of a torsional fatigue fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001434
EISBN: 978-1-62708-236-5
..., and characteristic of that resulting from fatigue. The origin of the major crack was associated with a crescent-shaped area immediately below the weld deposit. This showed brittle fracture characteristics and appeared to be an initial crack that occurred at the time of welding and from which the fatigue crack...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006421
EISBN: 978-1-62708-217-4
... showed that the fracture faces were corroded. Optical examination of either side of the middle group of fastener holes showed that the area of suspected crack initiation had suffered excessive corrosion. Examination of the holes on the end of the crack showed fracture characteristics typical of fatigue...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... during their lifetime. This article focuses on fractography of fatigue. It provides an abbreviated summary of fatigue processes and mechanisms: fatigue crack initiation, fatigue crack propagation, and final fracture,. Characteristic fatigue fracture features that can be discerned visually or under low...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001295
EISBN: 978-1-62708-215-0
.... A close examination of wire that had been flown several times without failure was also made, and dynamic tests were conducted to investigate the fracture characteristics of wire subjected to dynamic loading. It was concluded that dynamic shock loading transmitted by the target during unsteady flight...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... Abstract This article reviews the mechanical behavior and fracture characteristics that discriminate structural polymers from metals. It provides information on deformation, fracture, and crack propagation as well as the fractography involving the examination and interpretation of fracture...
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...
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Published: 01 December 1992
Fig. 9 Micrographs showing typical fracture surface morphologies. Transgranular fracture, characteristic of fatigue. Nital etch. (a) Screw No. 1. 63×. (b) Screw No. 4. 252×. More
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... are also discussed. The article describes the fracture characteristics of stress rupture. Information on various metallurgical instabilities is also provided. The article presents a description of thermal-fatigue cracks, as distinguished from creep-rupture cracks. creep-rupture cracks creep...
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Published: 01 June 2019
Fig. 2 Scanning electron image showing characteristic brittle fracture features on the housing crack surface. 100× More
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Published: 01 June 2019
Fig. 4 Fatigue striations of the fracture surface characteristic of cyclic fatigue and used in the cyclic stress evaluation. More
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Published: 01 January 2002
Fig. 39 Scanning electron image showing characteristic brittle fracture features on the housing crack surface. 100× More
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Published: 30 August 2021
Fig. 1 Cutting tool failure modes. (a) Characteristic wear and fracture surfaces on cutting tools. (b) Catastrophic failure. (c) Typical wear measurements for a turning tool. VB , flank wear More
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Published: 01 December 1992
Fig. 4 Fracture morphology characteristic of a rupture. More