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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.c0045918
EISBN: 978-1-62708-235-8
... cleaning procedures to remove any trace of the cleaning acids be used. Auger electron spectroscopy Contaminants Grain boundaries Rocket nozzles Scanning electron microscopy Nb-106 Stress-corrosion cracking Intergranular fracture Since electron microscopy for the evaluation of fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001217
EISBN: 978-1-62708-235-8
... Abstract In a housing made of cast steel GS 20MoV12 3, weighing 42 tons, precipitates were found on the austenitic grain boundaries during metallographic inspection. According to their shape and type they were recognized as carbides that precipitated during tempering. In addition, a much...
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Published: 01 June 2019
Fig. 4 Micrograph showing grain boundaries and grain boundary attack. More
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Published: 01 January 2002
Fig. 31 Microstructure, linked voids, and split grain boundaries in the failed outlet header shown in Fig. 30 . 400× More
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Published: 01 January 2002
Fig. 37 Decohesion at the particle-matrix interface on grain boundaries of 316 stainless steel that failed by creep More
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Published: 01 January 2002
Fig. 52 Example of preferential oxidation of the grain boundaries in a cast high-temperature alloy steel More
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Published: 01 January 2002
Fig. 34 Quench cracks due to excessively large grain boundaries resulting from excessively high austenitizing temperature. Note cracking patterns associated with prior coarse austenite grain boundaries. Source: Ref 4 More
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Published: 01 December 1992
Fig. 3 Microstucture of defective tube surface, showing grain boundaries outlined by carbides, with oxide attack at surface. Vilella's reagent. 250×. More
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Published: 01 December 2019
Fig. 12 ID and OD cracks along the grain boundaries between locations 3 and 4 More
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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 More
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Published: 30 August 2021
Fig. 54 Microstructure, linked voids, and split grain boundaries in the failed outlet header shown in Fig. 53 . Original magnification: 400× More
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Published: 30 August 2021
Fig. 26 Micrograph showing discontinuous cracking along the grain boundaries of steel due to hydrogen attack. Original magnification: 400× More
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Published: 01 June 2019
Fig. 7 Crack and precipitates at primary grain boundaries. Unetched longitudinal section. 100 × More
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Published: 01 June 2019
Fig. 6 Oxide precipitates at austenitic grain boundaries 3 mm under surface, etch: Nital.200 × More
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Published: 01 June 2019
Fig. 8 MnS inclusions and ferrite network at the austenite grain boundaries in longitudinal section through the starting point of the weld seam, Etch: picral. 500 × More
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Published: 01 December 1993
Fig. 5 Intergranular cracks propagating along prior-austenite grain boundaries (etch: picric acid + wetting agent). 630× More
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Published: 01 December 1993
Fig. 7 Micrograph showing grain boundaries with carbide precipitates and a homogeneous precipitation of gamma phase. inside the grains. More
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Published: 15 January 2021
Fig. 37 Decohesion at the particle-matrix interface on grain boundaries of 316 stainless steel that failed by creep More
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Published: 15 January 2021
Fig. 25 Chrome carbides at grain boundaries forming “pearl necklace” in 316 stainless steel. Electrolytic oxalic acid etch More
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Published: 01 June 2019
Fig. 7 Voids on the austenite grain boundaries below the scaled region, cross-section, etched in V2A pickling solution. 100× More