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ferritic ductile iron

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Published: 01 December 2001
Fig. 15 Effect of silicon on the oxidation of ferritic ductile iron in air at 650 °C (1200 °F). Source: Ref 10 More
Image
Published: 01 January 2022
Fig. 9.47 Ferritic ductile iron castings for a (a) turbo charger housing and an (b) exhaust manifold More
Image
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
Image
Published: 01 March 2002
Fig. 1.30 Micrograph of a ferritic ductile (nodular) cast iron showing a microstructure consisting of ferrite (light etching constituent) and graphite nodules (dark gray constituent). Etched in 2% nital. 100× More
Image
Published: 01 January 2022
Fig. 9.1 Typical ferritic, pearlitic, bainitic, and martensitic ductile iron microstructures More
Image
Published: 01 October 2011
Fig. 10.24 Effect of cast section size on the fatigue properties of pearlitic and ferritic ductile irons More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170062
EISBN: 978-1-62708-297-6
... to ductile iron. Fig. 1 Spheroidal graphite in an unetched ductile iron matrix shown at 75× (a) and in the etched (picral) condition shown at 300× (b). Etching reveals that the matrix consists of ferritic envelopes around the graphite nodules (bull’s-eye structure) surrounded by a pearlitic matrix...
Image
Published: 01 November 2007
Fig. 16.12 Ductile cast iron with a matrix that is predominantly ferrite. Original magnification: 250× More
Image
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
Image
Published: 01 August 2018
Fig. 17.88 Austempered ductile iron. Bainitic matrix (bainitic ferrite) and retained austenite (white areas). Structure known as ausferrite. Graphite nodules. Etchant: nital. Courtesy of J. Sertucha, Azterlan, Centro de Investigacion Metalurgica, Durango, Bizkaia, Spain. More
Image
Published: 01 August 2018
Fig. 17.89 Austempered ductile iron. Graphite, bainitic ferrite formed during austempering and retained austenite. Structure known as ausferrite. Etchant: nital. Courtesy of W. Guesser, Tupy Fundições, Joinville, SC, Brazil. More
Image
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
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140175
EISBN: 978-1-62708-264-8
.... In the as-cast condition, a ductile iron will be ferritic, pearlitic, or, more often, some mix of ferritic and pearlitic. Fig. 16.12 presents a micrograph of a ductile cast iron that has a matrix with a pearlite-ferrite mix that is predominantly white ferrite. Ductile irons are graded or classified as shown...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060247
EISBN: 978-1-62708-261-7
... C) P Mottled Solidification Malleable iron Temper graphite. Irregularly shaped nodules of graphite F, P Silver-gray Heat treatment Austempered ductile iron Spheroidal graphite B, AF Silver-gray Heat treatment (a) F, ferrite; P, pearlite; A, austenite; M, martensite; B...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320163
EISBN: 978-1-62708-332-4
... the typical microstructures of ferritic, predominantly pearlitic, bainitic, and martensitic, microstructures. Fig. 9.1 Typical ferritic, pearlitic, bainitic, and martensitic ductile iron microstructures 9.2 Advantages of Ductile Iron Ductile iron offers superior tensile and yield strengths...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400001
EISBN: 978-1-62708-258-7
... Abstract This chapter introduces the metallographer to the various types of steels and cast irons and explains how they are classified and defined. Classification and designation details are provided for plain carbon steels, alloy steels, and gray, white, ductile, and malleable cast irons...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440207
EISBN: 978-1-62708-262-4
... 0.10 … High-strength grade 3.0 1.5 0.8 0.20 0.10 … White cast iron 2.0–3.5 (all combined) 0.5–1.5 0.5 0.2–0.4 0.10 … Malleable cast iron 2.3 1.0 0.4 0.20 0.10 … Ductile cast iron Ferrite 3.5 2.5 0.2 0.05 0.01 0.04 Mg Pearlitic 3.5 2.5...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730069
EISBN: 978-1-62708-283-9
... behavior of ductile cast iron is similar to that of steel. Fig. 7.12 Ductile cast iron. The spheroids are graphite and the white areas are ferrite. Source: Ref 7.6 Both gray and ductile cast irons may be reheated to form a structure of graphite and austenite. The rate of cooling...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220583
EISBN: 978-1-62708-259-4
... ductile iron Nodular graphite B, austempering Heat treatment Note: A = austenite, F = ferrite, P = pearlite, M = martensite, B = bainite. Source: Ref 5 Though cast irons with less than 4.3% C (the eutectic composition in the stable Fe-C phase diagram) are commonly classified...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240453
EISBN: 978-1-62708-251-8
... treatment), to increase the nodule count. Increasing the nodule count is important, because a higher nodule count is associated with less chilling tendency ( Fig. 24.19 ) and a higher as-cast ferrite/pearlite ratio. Fig. 24.19 Postinoculation of ductile cast iron. Source: Ref 2 Postcasting...