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ductile cast iron

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Published: 01 November 2007
Fig. 16.11 Microstructures of ductile cast iron (top) and malleable cast iron (bottom). Source: Ref 16.9 More
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Published: 01 August 2018
Fig. 17.79 (a) Ductile fracture and (b) brittle fracture in ductile cast iron. SE, SEM. Not etched. The aspect of graphite and its role in the fracture process are evident. Courtesy of J. Sertucha, Azterlan, Centro de Investigacion Metalurgica, Durango, Bizkaia, Spain. More
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Published: 01 June 2008
Fig. 24.19 Postinoculation of ductile cast iron. Source: Ref 2 More
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Published: 01 March 2002
Fig. 4.23 Representative micrographs of ferrite-pearlite ductile cast iron test block 1. (a) Note the ferrite halo around the graphite nodules. The matrix is pearlite. 4% picral etch. 100×. (b) Same specimen unetched to compare with ASTM A 247, plate III, in Fig. 4.22 . 100× More
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Published: 01 August 2013
Fig. 7.12 Ductile cast iron. The spheroids are graphite and the white areas are ferrite. Source: Ref 7.6 More
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Published: 01 August 2018
Fig. 8.18 (a) Primary austenite dendrites in a pore of a sample of ductile cast iron. (b) Grains of the austenite-spheroidal graphite in the same pore. Some regions show graphite not completely surrounded by austenite. SEM, SE, no etching. (See also Chapter 17, “Cast Irons,” in this book More
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Published: 01 August 2018
Fig. 17.78 (a) and (b) Aspect of nodular graphite in ductile cast iron subjected to deep etching. Some of the nodules have been sectioned in the original metallography, before deep etching. SE, SEM. (c) Tridimensional reconstruction of nodular graphite in ductile cast iron. Cuts were made More
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Published: 01 August 2018
Fig. 17.80 Ductile cast iron. Graphite nodules. Not etched. Courtesy of W. Guesser, Tupy Fundições, Joinville, SC, Brazil. More
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Published: 01 August 2018
Fig. 17.82 Ductile cast iron, annealed (3.9% C, 2.9% Si, 0.32% Mn, 0.06% P, 0.037% Mg, 1.5% Ni, 0.57% Cu). The etchant reveals silicon segregation. Silicon content decreases as the distance from the graphite nodule increases. The etchant is composed of 28 g sodium hydroxide (NaOH), 4 g picric More
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Published: 01 August 2018
Fig. 17.83 Ductile cast iron with ferritic matrix. Etchant: nital. Courtesy of J. Sertucha, Azterlan, Centro de Investigacion Metalurgica, Durango, Bizkaia, Spain. More
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Published: 01 August 2018
Fig. 17.86 Ductile cast iron with (a) pearlitic and (b) martensitic matrix. Etchant: nital. Courtesy of J. Sertucha, Azterlan, Centro de Investigacion Metalurgica, Durango, Bizkaia, Spain. More
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Published: 01 August 2018
Fig. 17.90 Ductile cast iron subjected to surface hardening. Graphite, martensite, and retained austenite. Camshaft. HRC 56. Etchant: nital. Courtesy of W. Guesser, Tupy Fundições, Joinville, SC, Brazil. More
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Published: 01 August 2018
Fig. 17.91 (a,b) Austempered ductile cast iron. Beraha etchant is effective in the metallography of these alloys. More
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Published: 01 August 2018
Fig. 17.93 Microporosity in ductile cast iron. (a) Not etched. (b) SE, SEM. Graphite nodules and the dendritic structure can be seen. Courtesy of J. Sertucha, Azterlan, Centro de Investigacion Metalurgica, Durango, Bizkaia, Spain. More
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Published: 01 March 2002
Fig. 1.31 Micrograph of an austempered ductile cast iron showing a microstructure consisting of bainite (acicular constituent) and graphite nodules (dark gray constituent). Etched in 2% nital. 500× More
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Published: 01 November 2007
Fig. 16.12 Ductile cast iron with a matrix that is predominantly ferrite. Original magnification: 250× More
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Published: 31 December 2020
Fig. 14 Effect of austempering temperature on yield strength of ductile cast iron. Courtesy J. Keough, Applied Process Inc. Source: Ref 3 More
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Published: 01 August 2018
Fig. 17.85 Ductile cast irons with ferrite plus pearlite matrixes, with different volume fractions of ferrite. The ferrite is formed preferentially around the graphite nodules. Decreasing the ferrite volume fraction increases the strength, as in the case of steels. Courtesy of J. Sertucha More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320163
EISBN: 978-1-62708-332-4
... Abstract Ductile iron has far superior mechanical properties compared to gray iron as well as significantly improved castability and attractive cost savings compared to cast steel. This chapter begins with information on graphite morphology and matrix type. It then discusses the advantages...
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Published: 01 October 2011
Fig. 10.16 As-cast and annealed microstructure of a ductile iron. (a) As-cast pearlitic condition (grade 85-55-06) with graphite nodules in envelopes of ferrite (bull’s-eye structure) in a matrix of pearlite. (b) Same iron but annealed for 6 h at 788 °C (1450 °F) and furnace cooled to a lower More