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Cracks(fracturing)

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Published: 01 September 2008
Fig. 27 Metallographic examination of primary crack. Fracture path followed prior-austenite grain boundaries. No precipitates in grain boundaries (50 μm) were observed. More
Image
Published: 01 December 2018
Fig. 6.103 SEM macrograph at ID edge showing multiple crack initiation points (white arrows) and auxiliary cracking on crack fracture surface (black arrows). The overall fracture surface was relatively brittle and covered with corrosion products/scales, 50×. More
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Published: 01 June 2007
Fig. 45 SEM image of the fracture surface of a PM 434L sintered part which failed due to intergranular stress corrosion cracking. Fracture progressed along the grain boundaries of the well-sintered sample More
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Published: 01 September 2008
Fig. 37 Fracture surface of the crack in the failed screw after the crack was opened in the laboratory. “L” indicates the laboratory-induced overload region. Original magnification: 20×. Source: Ref 20 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270199
EISBN: 978-1-62708-301-0
... 1 and 2 , ASM International , 1992 and 1993 10.31399/asm.fach.v01.9781627082143 Goel V.S. , et al. , Ed., Analyzing Failures: The Problems and Solutions , Proc. International Conference and Exposition on Fatigue, Corrosion Cracking, Fracture Mechanics and Failure Analysis ( Salt...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240221
EISBN: 978-1-62708-251-8
... into two or more pieces under the action of stress. Fracture can be classified into two broad categories: ductile fracture and brittle fracture. As shown in the Fig. 13.1 comparison, ductile fractures are characterized by extensive plastic deformation prior to and during crack propagation. Brittle...
Image
Published: 01 December 2018
Fig. 6.34 (a) Microstructure of fracture edge with grains of ferrite and creep crack along with oriented creep cavities, 400×; (b) normal ferrite-pearlite structure away from failure location, 400× More
Image
Published: 01 January 2017
Fig. 18.16 Sectioning allowed partial exposure of the fracture surfaces of the crack in Fig. 18.15 . Note the radial line pattern converging at the surface site of crack initiation just above the “3” on the ruler. Source: Ref 18.53 More
Image
Published: 01 March 2002
Fig. 4.18 Stress-corrosion cracking found at the root of a thread on the fractured bolt shown in Fig. 4.17 . Unetched. 32× More
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Published: 01 December 2003
Fig. 26 Scanning electron image showing brittle fracture features at the crack initiation site, characteristic of environmental stress cracking. 24× More
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Published: 01 December 2003
Fig. 30 Fracture band width as a function of crack length for the polyethylene pipe shown in Fig. 29 . T , transition point More
Image
Published: 30 November 2013
Fig. 5 Surface of a torsional fatigue crack that caused brittle fracture of the case of an induction-hardened axle of 1541 steel. The fatigue crack originated (arrow) at a fillet (with a radius smaller than specified) at a change in shaft diameter near a keyway runout. Case hardness was about More
Image
Published: 30 November 2013
Fig. 7 Stress-corrosion crack in a high-strength steel part (4×). The fracture surface appears to have the characteristic beach mark pattern of a fatigue fracture. However, this was a stress-corrosion fracture in which the pattern was caused by differences in the rate of corrosion penetration More
Image
Published: 01 August 2013
Fig. 10.4 Sketch showing some fibers fracturing at a crack and others pulling out. Source: Ref 10.1 More
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Published: 01 September 2008
Fig. 6 SEM fractographs of the fracture surfaces of cracks 1 and 2 in the strain bar. (a) Fracture surface of crack 1, showing typical fatigue zones at arrows (750 μm). (b) Typical fatigue striations in crack 1 fatigue zones (30 μm). (c) Fracture surface at crack 2 of the strain bar, showing More
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Published: 01 September 2008
Fig. 18 Fracture surfaces. (a) Circumferential crack 1 (4.3 mm). (b) Circumferential crack 2 (4.3 mm). (c) Longitudinal crack (5 mm) More
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Published: 01 September 2008
Fig. 73 Fracture surface of the exposed crack in the shank of bolt I More
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Published: 01 September 2008
Fig. 74 Fracture surface of the exposed crack in the head fillet radius of bolt I More
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Published: 01 December 2003
Fig. 3 Thermal fatigue failure and conventional fatigue crack propagation fracture during reversed load cycling of acetal. Source: Ref 10 More
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Published: 01 September 2008
Fig. 18 Region adjacent to the fractured region showing a transgranular crack generated in the casting process and masked by material deformation during the radio machining process, with propagation directed to the internal diameter More