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cleavage fracture
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in The Failure of Titanium Clad Tube Sheet in Heat Exchanger by Fatigue Cracking and Corrosion
> ASM Failure Analysis Case Histories: Chemical Processing Equipment
Published: 01 June 2019
Fig. 2 The cleavage and quasi-cleavage fracture surface at the location of crack initiation. (×300)
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in Failure of a Bucket-Wheel Stacker Reclaimer: Metallographic and Structural Analyses
> Handbook of Case Histories in Failure Analysis
Published: 01 December 2019
Fig. 10 ( a ) Fracture surface of region B showing cleavage fracture mode. In ( b ), the cleavage facets are shown in detail
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in Investigation of a Failed Stainless Steel Spindle Assembly
> ASM Failure Analysis Case Histories: Offshore, Shipbuilding, and Marine Equipment
Published: 01 June 2019
Fig. 11 Scanning micrograph showing transgranular cleavage fracture in the remaining cross section during separation.
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Published: 01 June 2019
Fig. 6 Brittle cleavage fracture surface on a notched bar impact test specimen from the broken eyebolt. Scanning electron micrograph. 500 ×
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in Failure Analysis of Induction Hardened Automotive Axles
> Handbook of Case Histories in Failure Analysis
Published: 01 December 2019
Fig. 26 This area of cleavage fracture from the center of axle 1 is typical of cleavage fracture observed in all of the axle failures in bending observed to date
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in Failure Analysis of Medical Devices
> Analysis and Prevention of Component and Equipment Failures
Published: 30 August 2021
Fig. 14 Scanning electron microscopy micrograph showing brittle cleavage fracture morphology on a high-hardness surgical tool
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in Mechanisms and Appearances of Ductile and Brittle Fracture in Metals
> Failure Analysis and Prevention
Published: 01 January 2002
Fig. 3 Dislocation models for cleavage fracture. (a) Elastic crack regarded as a pileup of edge dislocations. (b) Pileup against a boundary forming a crack. (c) Crack forming by movement of dislocations on two slip planes. (d) Crack formation at tilt boundary. Source: Ref 4
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in Mechanisms and Appearances of Ductile and Brittle Fracture in Metals
> Failure Analysis and Prevention
Published: 01 January 2002
Fig. 57 Quasi-cleavage fracture in a low-carbon steel tested at −196 °C (−320 °F). (a) Tensile specimen. (b) Torsion (mode III) specimen. Etch pitting indicated that the fracture plane was {100}. Source: Ref 72
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in Mechanisms and Appearances of Ductile and Brittle Fracture in Metals
> Failure Analysis and Prevention
Published: 01 January 2002
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Published: 01 January 2002
Fig. 4 A cleavage fracture in a carbon steel component is shown. Scanning electron micrograph. 593×
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Published: 01 January 2002
Fig. 1 Illustration of a cleavage fracture in a quenched and tempered low-carbon steel examined using three direct methods and three replication methods. (a) LM cross section (nickel plated). Etched with Vilella's reagent. (b) LM fractrograph (direct). (c) SEM fractograph (direct). (d) LM
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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001786
EISBN: 978-1-62708-241-9
... surfaces (including fractography, metallography, and analytical stress calculations) revealed areas of damage due to rubbing with evidence of cleavage fracture on the unaffected surfaces. The results of stress analysis indicated that repeated reversals of the spindle produced stresses exceeding the fatigue...
Abstract
A heavy duty facing lathe failed when the tool post caught one of the jaws on the rotating chuck, causing the spline shaft that drives the main spindle to fracture. A detailed analysis of the fracture surfaces (including fractography, metallography, and analytical stress calculations) revealed areas of damage due to rubbing with evidence of cleavage fracture on the unaffected surfaces. The results of stress analysis indicated that repeated reversals of the spindle produced stresses exceeding the fatigue limit of the shaft material. These stresses led to the formation of microcracks in a retaining ring groove that were accelerated to sudden failure when the tool post and chuck collided.
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0048804
EISBN: 978-1-62708-230-3
... saturated steam from 35 to 380 kPa. Failures were found to occur in the shell body, in a head near a hand hole or a manhole opening, or in a head near the journal-to-head interface. A cleavage fracture was revealed by scanning electron microscopy regardless of the driving stress for failure. Fracture...
Abstract
Several cases of failures in gray cast iron paper machine dryer rolls were evaluated. The rolls were found have ground outer cylindrical surfaces on which the paper web is dried. They were found to rotate about their longitudinal axes at speeds from 50 to 250 rpm while containing saturated steam from 35 to 380 kPa. Failures were found to occur in the shell body, in a head near a hand hole or a manhole opening, or in a head near the journal-to-head interface. A cleavage fracture was revealed by scanning electron microscopy regardless of the driving stress for failure. Fracture surface were found to exhibit chevron marks typical of fatigue or raised points or tears pointing in the direction of the probable origin of failure. The characteristics of the thinwall cast iron structures like the variation in composition due to pouring from multiple ladles, variation in solidification rates, and variation in tensile strength to be noted during inspection were described.
Book Chapter
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001448
EISBN: 978-1-62708-229-7
... Abstract Rivets from the longitudinal seam of the terminal shell ring of a 12 year old Lancashire boiler broke off easily during examination. Cleavage fractures indicated a brittle material. Microstructure of a sectioned rivet head was typical of a normal rimming steel except the ferrite...
Abstract
Rivets from the longitudinal seam of the terminal shell ring of a 12 year old Lancashire boiler broke off easily during examination. Cleavage fractures indicated a brittle material. Microstructure of a sectioned rivet head was typical of a normal rimming steel except the ferrite crystals contained numerous nitride needles. Their existence indicated an abnormally high nitrogen content. If such a steel is heated for a lengthy period to a temperature of that prevailing in a boiler, precipitation of the nitrides may be expected, with consequent embrittlement. In this case, embrittlement of this type was the primary cause of the breaking off of the type rivet heads. Nothing was observed in the course of the examination that suggested caustic cracking.
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in Fracture of a Core Component in a Nuclear Reactor
> ASM Failure Analysis Case Histories: Power Generating Equipment
Published: 01 June 2019
Fig. 5 Fracture surface showing hydride cleavage typical of DHC (TEM examination of a two-stage carbon replica). Near area B in Figure 4 .
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in Failure of a Stainless Steel Power Boiler Steam Desuperheater
> ASM Failure Analysis Case Histories: Power Generating Equipment
Published: 01 June 2019
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in Failure Analysis of a Spoon Broken by a Parapsychic Person
> ASM Failure Analysis Case Histories: Household Products and Consumer Goods
Published: 01 June 2019
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in Stress-Corrosion Cracking of Stainless Steel Falling Film Black Liquor Evaporator
> ASM Failure Analysis Case Histories: Pulp and Paper Processing Equipment
Published: 01 June 2019
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in Interpretation of a “Rock Candy” Fracture Exhibited by a Steel Railroad Casting
> ASM Failure Analysis Case Histories: Rail and Rolling Stock
Published: 01 June 2019
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Published: 01 June 2019
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