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ferritic microstructure

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Published: 01 June 2019
Fig. 2 Microstructures of the fractured door-closer cylinder casting. (a) Casting showing types B and D graphite. Fracture is at top, and outside surface is at left. As-polished. 100x. (b) Pearlite/ferrite microstructure of casting containing about 70% ferrite. Etched with nital. 400x. (c More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047297
EISBN: 978-1-62708-235-8
... ferrite. This anomalous structure is caused by shortcomings in the foundry practice of chemical composition, solidification, and inoculation control. Judging from the microstructure, the strength of the material was lower than desired for class 30 gray iron, and the suspected heat treatment further...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001198
EISBN: 978-1-62708-221-1
... and the ferritic microstructure caused thereby are a consequence of delayed solidification due to undercooling. The ferrite formation may have been further accelerated by the annealing. This structure showed low strength that had a particular damaging effect on the bottom of the groove at high operating stress...
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Published: 01 January 2002
Fig. 43 Light micrograph of a ferrite-pearlite microstructure from a carbon steel reinforcing rod revealed using replicating tape. Specimen etched with picral More
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Published: 01 December 1992
Fig. 9 Microstructure of the axle core, composed of ferrite and pearlite (and perhaps bainite). 2% nital etch. 450×. More
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Published: 01 December 1992
Fig. 8 Microstructure of the collar showing pearlite in a ferrite. matrix. Nital etch, 100×. More
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Published: 01 December 1992
Fig. 9 Microstructure of the spindle, showing tempered martensite with some ferrite. Nital etch, 100×. More
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Published: 30 August 2021
Fig. 25 Tube microstructure of banded ferrite and pearlite with pits on the inner surface. Original magnification: 400× More
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Published: 01 December 1993
Fig. 7 Microstructure of pearlite in a ferrite matrix More
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Published: 01 December 1993
Fig. 3 Typical microstructure of pearlite and ferrite observed in the tube samples. Nital etch. (a) 100×. (b) 800×. More
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Published: 01 December 1993
Fig. 8 Typical ferrite and pearlite microstructure of base material More
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Published: 01 June 2019
Fig. 4 Microstructures of the cracked casting. (a) Ferrite/pearlite matrix is representative of the cracked casting. 100x. (b) Structure of cracked casting adjacent to the gas defect. The white constituents in the dark pearlite zone are carbides. White regions in the fine type D graphite More
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Published: 15 January 2021
Fig. 16 Light micrograph of a ferrite-pearlite microstructure from a carbon steel reinforcing rod revealed using replicating tape. Specimen etched with picral More
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Published: 15 January 2021
Fig. 35 Fatigue crack (arrows) in a ferrite-pearlite microstructure in a carbon steel. Etched with 2% nital. Original magnification: 800× More
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Published: 01 June 2019
Fig. 9 Ferrite/martensite microstructure near fracture surface in H.A.Z. 1000 × More
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Published: 01 December 2019
Fig. 6 Hot-rolled raw state microstructure ( a ), detected ferrite grain pattern ( b ), and ASTM G grain size distribution histogram ( c ) More
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Published: 01 December 2019
Fig. 7 Microstructure of sample 3b far from tear. The ferrite and pearlite morphology is different from Fig. 5 , indicating that the steel had been reaustenitized. More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001286
EISBN: 978-1-62708-215-0
... disc was specified to be an ASTM A395 60-40-18 ductile iron casting with a subsequent anneal heat treatment. A mostly ferritic microstructure with no massive carbides was specified. In addition, graphite formation was required to contain a minimum of 90% types I and II graphite. A hardness range of 143...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001336
EISBN: 978-1-62708-215-0
... approximately 3 to 5% ferrite in an austenitic matrix ( Fig. 3 ). Thus, the used old stock pipe met the specified AISI 304L microstructural requirements. Fig. 1 Typical unetched transverse metallographic cross section of a used old stock pipe, displaying extremely small, round duplex inclusions. 63...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0047343
EISBN: 978-1-62708-236-5
... ( Fig. 4 ). Fig. 2 Microstructure of the rotor shown in Fig. 1 . (a) General structure. 60x. (b) Graphite nodules in a matrix of ferrite and pearlite. 300x. Both etched with nital Fig. 3 Microstructure of the heavy section adjacent to the gas passage in the rotor. (a) General structure...