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Book Chapter
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047753
EISBN: 978-1-62708-235-8
... was revealed by visual examination. Fatigue marks, emanating from multiple crack origins on the inside surface of the housing at the brazed joint were revealed by further study of the fracture. A poor metallurgical bond was confirmed by the presence of large irregular voids, flux trapped braze metal...
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in Failure Analysis of Gas Turbine Last Stage Bucket Made of Udimet 500 Superalloy
> ASM Failure Analysis Case Histories: Power Generating Equipment
Published: 01 June 2019
Fig. 9 Small creep voids identified at the extreme tip of the crack
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in Preventive Analyses of Croloy 1 Pressure Parts
> ASM Failure Analysis Case Histories: Power Generating Equipment
Published: 01 June 2019
Fig. 2 Microstructure, linked voids, and split grain boundaries in the failed outlet header shown in Fig. 1 . 400x
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in Failure of Steam-Water Heat Exchangers
> ASM Failure Analysis Case Histories: Offshore, Shipbuilding, and Marine Equipment
Published: 01 June 2019
Fig. 3 Section of attacked cast steel flange showing voids surrounded by ferrite. 500×
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in Scaling of Resistance Heating Elements in a Through-Type Annealing Furnace
> ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment
Published: 01 June 2019
Fig. 3 Views of the scaled heating element. Fractures with internal voids. 1×
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in Scaling of Resistance Heating Elements in a Through-Type Annealing Furnace
> ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment
Published: 01 June 2019
Fig. 7 Voids on the austenite grain boundaries below the scaled region, cross-section, etched in V2A pickling solution. 100×
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in Metallurgical Evaluation of a Five Inch Cylindrical Induction Melter
> ASM Failure Analysis Case Histories: Steelmaking and Thermal Processing Equipment
Published: 01 June 2019
Fig. 8 SEM photographs of the exterior of the CIM drain tube. (a) Voids visible on the grain boundary near the holes and widening of the grain boundaries characteristic of incipient melting (see arrows). (b) Area appearing to have melted
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in Shear Band Failures in Threaded Titanium Alloy Fasteners
> ASM Failure Analysis Case Histories: Improper Maintenance, Repair, and Operating Conditions
Published: 01 June 2019
Fig. 7 Optical micrographs of the failed pin showing the initiation of voids (a) which grow into cracks (b) in the shear bands. Note the voids are round (a).
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in Biologically Influenced Corrosion of Stainless Steel Welds by Water
> ASM Failure Analysis Case Histories: Failure Modes and Mechanisms
Published: 01 June 2019
Fig. 2 Overlay illustration of radiograph of weld at leak site. Four large voids exist in the weld itself.
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in Biologically Influenced Corrosion of Stainless Steel Welds by Water
> ASM Failure Analysis Case Histories: Failure Modes and Mechanisms
Published: 01 June 2019
Fig. 5 View of inside surface at weld having several large MIC voids. Weld has numerous visible flaws.
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in Biologically Influenced Corrosion of Stainless Steel Welds by Water
> ASM Failure Analysis Case Histories: Failure Modes and Mechanisms
Published: 01 June 2019
Fig. 7 View of section through the weld in Figures. 5 & 6 . Voids in the filler material are obvious. 15×.
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in Stress-Rupture Characterization in Nickel-Based Superalloy Gas Turbine Engine Components
> Handbook of Case Histories in Failure Analysis
Published: 01 December 2019
Fig. 13 Typical creep voids forming on transverse grain boundaries from solid, equiaxed turbine blade casting. Void coalescence will eventually lead to a stress-rupture crack
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in Stress-Rupture Characterization in Nickel-Based Superalloy Gas Turbine Engine Components
> Handbook of Case Histories in Failure Analysis
Published: 01 December 2019
Fig. 14 Creep voids forming near the trailing edge of SX turbine blade casting at ∼ 5% airfoil span. Casting contains no grain boundaries. Etchant: 33% glycerol, 33% nitric acid, 33% acetic acid, and 1–3% hydrofluoric acid
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Published: 01 January 2002
Fig. 41 Voids formed by methane in a carbon steel exposed to a hydrogen atmosphere at high temperature. The carbides in the pearlite have been eliminated by reaction with the hydrogen. Courtesy of Dr. T.L. da Silveira, Rio de Janeiro, Brazil
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Published: 01 January 2002
Fig. 22 Light micrographs depicting (a) excessive and (b) low relief around voids in a braze between an austenitic stainless steel and Monel. The specimen was etched with glyceregia.
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Published: 01 January 2002
Fig. 22 (a) Cold shut voids (A, B) and flow lines (C, D) both caused by failure of the streams of molten metal to merge, at the cast surface (E) of an alloy 384-F die casting. 0.5% hydroflouric acid. 53× (b) Gate area (A) of an alloy 413-F die casting that has a cold shut void (B) and a region
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Published: 01 January 2002
Fig. 20 Section through an automatic gas tungsten arc weld containing voids caused by incomplete fusion. (a) Base metal at left is Incoloy 800 nickel alloy, that at right is 2.25Cr-1.0Mo alloy steel. Filler metal was ERNiCr-3, used with cold wire feed. Macrograph. 1×. (b) Micrograph
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in Failure Analysis of Railroad Components
> Analysis and Prevention of Component and Equipment Failures
Published: 30 August 2021
Fig. 98 Head of rail. Arrows indicate the voids present
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Published: 01 December 1993
Fig. 2 Internal surface of a sample at the 12:00 position. Voids from hydrogen damage are evident beneath the internal corrosion (black arrows). Nital etch. (a) Copper deposits are visible on the internal surface (white arrows). (b) Microfissures near the internal gouging. 800×.
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in Creep Failure of a Superheater Tube Promoted by Graphitization
> Handbook of Case Histories in Failure Analysis
Published: 01 December 1993
Fig. 3 Microstructure in Tube 3 at the rupture. The creep voids have linked up to form a crack. Nital etchant. (a) 177×. (b) 308×.
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