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ductile cast iron

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Book Chapter

Ductile Cast Irons

Series: ASM Handbook
Volume: 12A
Publisher: ASM International
Published: 30 June 2025
DOI: 10.31399/asm.hb.v12a.a0007064
EISBN: 978-1-62708-500-7
... Abstract This article presents fractographs of overload fractures in a ductile cast iron piston, tensile test bar, differential case, brake caliper, compressor crankshaft, and pivot arm. SEM images show such features as dimpled rupture at the thin metallic matrix ligatures between the graphite...
Abstract
This article presents fractographs of overload fractures in a ductile cast iron piston, tensile test bar, differential case, brake caliper, compressor crankshaft, and pivot arm. SEM images show such features as dimpled rupture at the thin metallic matrix ligatures between the graphite nodules, bull's-eye ferrite and pearlite microstructure, loose graphite nodules and dimpled rupture morphology transitioning to cleavage, cleavage morphology with river lines, and ratchet marks and beach marks.
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Scanning electron micrograph of ductile cast iron graphite nodules and ferr...

in Forms of Corrosion > Failure Analysis and Prevention
Published: 01 January 2002
Fig. 8 Scanning electron micrograph of ductile cast iron graphite nodules and ferritic phase after corrosion tests. Note the loss of material at the interface of the nodule. 2000×. Source: Ref 11 , 12 More
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Ductile cast iron cam from automotive camshaft. Source: Ref 18

in Surface Engineering of Cast Irons > Surface Engineering
Published: 01 January 1994
Fig. 13 Ductile cast iron cam from automotive camshaft. Source: Ref 18 More
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Scanning electron micrograph of ductile cast iron graphite nodules and ferr...

in Forms of Corrosion > Failure Analysis and Prevention
Published: 15 January 2021
Fig. 8 Scanning electron micrograph of ductile cast iron graphite nodules and ferritic phase after corrosion tests. Note the loss of material at the interface of the nodule. Original magnification: 2000×. Source: Ref 11 , 12 More
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Effect of austempering temperature on yield strength of ductile cast iron. ...

in Introduction to Cast Iron Heat Treatment[1] > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 14 Effect of austempering temperature on yield strength of ductile cast iron. Courtesy J. Keough, Applied Process Inc. Source: Ref 20 More
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Inverse chill in pearlitic-ferritic ductile cast iron. Used with permission...

in Casting Defects > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 44 Inverse chill in pearlitic-ferritic ductile cast iron. Used with permission from Ref 13 More
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Heat treated ductile cast iron tint etched with Beraha’s CdS film reagent a...

in Metallography and Microstructures of Cast Iron[1] > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 68 Heat treated ductile cast iron tint etched with Beraha’s CdS film reagent and viewed with crossed polarized light and a sensitive tint filter. Note the oddly shaped graphite nodule (bottom center), which appears to be three interconnected nodules, and the white (not colored) cementite More
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Nodular graphite ASTM A439 type D-2 austenitic ductile cast iron viewed at ...

in Metallography and Microstructures of Cast Iron[1] > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 71 Nodular graphite ASTM A439 type D-2 austenitic ductile cast iron viewed at original magnifications of 50× and 100×. The nodular graphite is still easily observed (a) at an original magnification of 100× after etching with 2% nital and (b) at an original magnification of 200× after More
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River pattern formation in ferritic ductile cast iron (ASTM A536, 100-40-18...

in Fracture Analysis > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 11 River pattern formation in ferritic ductile cast iron (ASTM A536, 100-40-18 grade, annealed). Source: Ref 9 More
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Ductile cast iron cylinder frame for a marine diesel engine. Weight: 25 ton...

in Castability and Product Design of Ductile Iron > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 10 Ductile cast iron cylinder frame for a marine diesel engine. Weight: 25 tons. Reprinted with permission from MAN Diesel & Turbo More
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Heat treated ductile cast iron etched with Beraha’s CdS film reagent (for c...

in Metallography and Microstructures of Ductile Irons > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 21 Heat treated ductile cast iron etched with Beraha’s CdS film reagent (for color tint, not shown) and viewed with crossed polarized light and a sensitive tint filter. Note the oddly shaped graphite nodule (bottom center), which appears to be three interconnected nodules, and the white More
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Microstructure of nodular graphite in austenitic ductile cast iron (ASTM A4...

in Microstructure and Characterization of High-Alloy Cast Irons > Cast Iron Science and Technology
Published: 31 August 2017
Fig. 5 Microstructure of nodular graphite in austenitic ductile cast iron (ASTM A439 type D-2). (a and b) As-polished. Original magnification: (a) 50× and (b) 100×. Note the large nodules and the eutectic patches of very small graphite nodules. The nodular graphite also is still easily More
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Variation of hardness values with quenching media for ductile cast iron

in Hardenability of Steels and Cast Irons > Quenchants and Quenching Technology
Published: 01 February 2024
Fig. 47 Variation of hardness values with quenching media for ductile cast iron More
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SEM image showing an overload fracture in a ductile cast iron. Note the loose graphite nodules and how the fracture path goes around, rather than through, the nodules. (D. Christie, retired, IMR Test Labs)

SEM image showing an overload fracture in a ductile cast iron. Note the loo...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 1 SEM image showing an overload fracture in a ductile cast iron. Note the loose graphite nodules and how the fracture path goes around, rather than through, the nodules. (D. Christie, retired, IMR Test Labs) More
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SEM image of a ductile cast iron overload fracture showing dimpled rupture at the thin metallic-matrix ligatures between the graphite nodules (D. Christie, retired, IMR Test Labs)

SEM image of a ductile cast iron overload fracture showing dimpled rupture ...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 2 SEM image of a ductile cast iron overload fracture showing dimpled rupture at the thin metallic-matrix ligatures between the graphite nodules (D. Christie, retired, IMR Test Labs) More
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SEM image of a ductile cast iron overload fracture showing loose and missing graphite nodules surrounded by dimpled rupture of the matrix (D. Christie, retired, IMR Test Labs)

SEM image of a ductile cast iron overload fracture showing loose and missin...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 3 SEM image of a ductile cast iron overload fracture showing loose and missing graphite nodules surrounded by dimpled rupture of the matrix (D. Christie, retired, IMR Test Labs) More
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Cross section through the ductile cast iron overload fracture surface showing the bull’s-eye ferrite and pearlite microstructure. The fracture path goes around the graphite nodules. 256 HBW. 2% nital etch. Original magnification: 100× (B. Akyuz, Applied Technical Services)

Cross section through the ductile cast iron overload fracture surface showi...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 5 Cross section through the ductile cast iron overload fracture surface showing the bull’s-eye ferrite and pearlite microstructure. The fracture path goes around the graphite nodules. 256 HBW. 2% nital etch. Original magnification: 100× (B. Akyuz, Applied Technical Services) More
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SEM image of the ductile cast iron overload fracture surface at the origin showing loose graphite nodules and dimpled rupture morphology transitioning to cleavage as the distance from the origin increases from top right to lower left. 256 HBW. Original magnification: 500× (B. Akyuz, Applied Technical Services)

SEM image of the ductile cast iron overload fracture surface at the origin ...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 6 SEM image of the ductile cast iron overload fracture surface at the origin showing loose graphite nodules and dimpled rupture morphology transitioning to cleavage as the distance from the origin increases from top right to lower left. 256 HBW. Original magnification: 500× (B. Akyuz More
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SEM image of the ductile cast iron overload fracture surface away from the origin showing cleavage morphology. 256 HBW. Original magnification: 750× (B. Akyuz, Applied Technical Services)

SEM image of the ductile cast iron overload fracture surface away from the ...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 7 SEM image of the ductile cast iron overload fracture surface away from the origin showing cleavage morphology. 256 HBW. Original magnification: 750× (B. Akyuz, Applied Technical Services) More
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Image showing the monotonic overload fracture of a ductile cast iron piston. ASTM A536, grade 100-70-03 (N. Steinhoff, Applied Technical Services)

Image showing the monotonic overload fracture of a ductile cast iron piston...

in Ductile Cast Irons > Atlas of Fractographs
Published: 30 June 2025
Fig. 8 Image showing the monotonic overload fracture of a ductile cast iron piston. ASTM A536, grade 100-70-03 (N. Steinhoff, Applied Technical Services) More