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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.c9001806
EISBN: 978-1-62708-241-9
...-corrosion cracking. Two common stress-corrosion cracking tests for copper materials were conducted on new connectors from the same manufacturing lot, confirming the initial determination of the fracture mode. Additional testing as was done in the investigation is often helpful when analyzing corrosion...
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Published: 01 June 2019
Fig. 7 Microstructure (with cleavage crack) of an aged notched bar impact test specimen. Normalized at 900° C, 10% deformed and aged 1 2 h at 250° C. 500 × More
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Published: 01 June 2019
Fig. 2 Crack-propagation direction and origin identified on fracture test component. (a) Optical micrograph. 0.4x. Crack origin is indicated by circled area. (b) Scanning electron micrograph of the circled area shown in (a). 5000x. Note river marks that coalesce in the direction of overall More
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Published: 01 June 2019
Fig. 5 Fatigue crack propagation test More
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Published: 01 December 1992
Fig. 18 Log-log da/dN versus delta K fatigue crack growth-rate test results for 310 MPa (45 ksi) maximum stress and stress ratio of 0.73. The scatterband (two parallel lines) is for quenched and tempered martensitic steels from NCHRP 12–14. Note that the A517 grade, F, plate D, test results More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001523
EISBN: 978-1-62708-227-3
... failure; fatigue fracture; and, environmentally-assisted cracking. Testing indicated overload failure was the cause. Remedial actions were taken to improve the fracture properties of the deck socket. A modified manufacturing process was developed involving milling and cutting instead of coining to round...
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Published: 01 December 1992
Fig. 4 Internal view of cracking on fatigue-tested sample 9. Cracking is evident at toes of both fillet welds, as indicated by arrows. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001195
EISBN: 978-1-62708-227-3
... of a connecting rod selected by a magnetic crack test revealed deep folds in the flash zone. As shown in Fig. 3 these folds are filled with scale and a broad zone around them is decarburized. The microstructure of the remaining material corresponds to correct annealing. Since the flash zone was ground after...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001342
EISBN: 978-1-62708-215-0
... the inner liner initiated on the outer surface of the liner and propagated inward, whereas cracks in the bellows originated on the inner surface and propagated outward. Stress-corrosion cracking of the assembly was caused by chloride contaminants trapped inside the bellows following hydrostatic testing...
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Published: 01 January 2002
Fig. 26 Fatigue cracks in laboratory test specimens of (a) a steering knuckle made of ferritic ductile iron showing macroscopic features of a fatigue crack initiated at a sharp corner, and (b) a rotating bending fatigue specimen made of as-cast gray iron. Fatigue in this relatively brittle More
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Published: 01 January 2002
Fig. 59 Crack (arrows) in casting that developed during torque testing. ∼1.1× More
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Published: 30 August 2021
Fig. 38 Crack (arrows) in casting that developed during torque testing. Original magnification: ~1.1× More
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Published: 30 August 2021
Fig. 10 Crack shown in a typical radiographic testing film taken around a nozzle using cobalt-60 source More
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Published: 01 June 2019
Fig. 8 Water Side of Tube - Note cracking revealed by penetrant testing opposite side of buckstay weld. More
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Published: 15 January 2021
Fig. 26 Fatigue cracks in laboratory test specimens. (a) Steering knuckle made of ferritic ductile iron showing macroscopic features of a fatigue crack initiated at a sharp corner. (b) Rotating-bending fatigue specimen made of as-cast gray iron. Fatigue in this relatively brittle gray iron More
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Published: 01 June 2019
Fig. 1 Cracking on fire-side of furnace ring as revealed by dye-penetrant test More
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Published: 01 December 1992
Fig. 2 Crack condition after liquid penetrant testing. More
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Published: 15 May 2022
Fig. 8 Environmental stress cracking fixtures for strain-controlled bent test according to (a) ISO 22088-3 and (b) ASTM D543, Practice B More
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Published: 01 December 1992
Fig. 2 Crack (arrows) in the casting that developed during torque testing. 1.1×. More
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Published: 01 December 1992
Fig. 1 Laboratory-fatigue-tested cross member sample 1, showing cracking progression from internal fillet-welded diaphragm through channel side wall at location indicated by arrow. More