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graphite morphology

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Image
Published: 01 June 2008
Fig. 24.17 Influence of graphite morphology on stress-strain behavior. Source: Ref 2 More
Image
Published: 01 August 2018
Fig. 17.74 The effect of magnesium content on the graphite morphology in cast iron. Source: Ref 1 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320207
EISBN: 978-1-62708-332-4
... Abstract Compacted graphite iron (GCI) is a cast iron grade that is engineered through graphite morphology modifications to achieve a combination of thermal and mechanical properties that are in between those of flake graphite iron and ductile iron. This chapter discusses the advantages...
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...
Image
Published: 01 December 2001
Fig. 1 Class 30 gray cast, as-cast. Structure consists of type A graphite morphology in a pearlitic matrix. Type A graphite flakes are randomly distributed and oriented throughout the matrix and are associated with the optimum mechanical properties. Additional information on graphite More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170091
EISBN: 978-1-62708-297-6
... Abstract This article discusses the composition and morphology of compacted graphite (CG) iron relative to that of gray and ductile iron. It explains that the graphite in CG iron is intermediate in shape between the spheroidal graphite found in ductile iron and the flake graphite in gray iron...
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
... alter both the graphite morphology and the microstructure of the matrix. Slow cooling rates favor the formation of graphite, while faster rates promote more cementite. The formation of graphite rather than cementite is favored by: High carbon contents High silicon contents Slow 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
... irons. For many years, it was not possible to affect how graphite precipitates during solidification. More recently, ways of influencing the morphology of graphite have been developed, enlarging the range of possible graphite variations and increasing the possibilities of controlling the properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300179
EISBN: 978-1-62708-323-2
... graphite in various forms: Type of iron Graphite morphology Gray Flakes (three-dimensional) Ductile Nodules Malleable Nodules ADI Nodules The graphite morphology is likely the reason for the success that gray cast irons have achieved as cylinder liners in internal...
Image
Published: 01 August 2018
Fig. 17.28 (a) Type VII, Distribution D graphite (ASTM A247). Small, short flakes in the interdendritic spaces, eutectic morphology (see also Fig. 8.24 ). (b) Type VII, Distribution D graphite in a gray cast iron. Not etched. More
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
.... The metallurgical processing of cast iron is designed to manipulate the type, amount, and morphology of the eutectic in order to achieve the desired mechanical properties. A summary of these cast iron types, as well as the processing required to obtain them, is given in Fig. 10.3 . The shape of the graphite also...
Image
Published: 01 October 2011
to the softness and flake (lamellar) morphology of graphite in gray irons. Source: Ref 3.3 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170021
EISBN: 978-1-62708-297-6
... relieving Composition Elevated-temperature properties Introduction and Overview Gray irons are a group of cast irons that form flake graphite during solidification, in contrast to the spheroidal graphite morphology of ductile irons. The flake graphite in gray irons is dispersed in a matrix...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
... physical metallurgy. Several examples of the morphological features of microstructural constituents in steels are also presented. cast iron heat treatment iron-carbon phase diagram microstructure solidification steel EVERY METALLOGRAPHER should know and understand how the various...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560005
EISBN: 978-1-62708-291-4
... , and temper carbon indicate the origin of the phase, whereas, the morphology is suggested by flake graphite, rosette graphite, exploded graphite, malformed graphite, vermicular graphite, nodular graphite, spheroidal graphite, spherulitic graphite , and interdendritic graphite . Additionally, ASTM...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320103
EISBN: 978-1-62708-332-4
... A159-77 SAE J431 Automotive, gray iron castings G1800 187 max Ferritic-pearlitic Machinability needed, high strength not required G2500 170-229 Pearlitic-ferritic Small blocks and heads, pistons, clutch plates, gear boxes G2500a 170-229 3.4% carbon min Graphite size 2-4 15% max ferrite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320031
EISBN: 978-1-62708-332-4
... Conductivity Thermal conductivity is an index for the rate of a material’s heat transmission. The factors that influence the value of thermal conductivity are graphite content, graphite morphology (including nodularity in the case of CGI and nodular iron), microstructure, alloy additions (especially...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420087
EISBN: 978-1-62708-310-2
... Abstract This chapter begins by presenting a generic eutectic phase diagram and identifying critical points, lines, and features. It then describes the composition and properties of aluminum-silicon and lead-tin eutectic systems, the characteristics of eutectic morphologies, the solidification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400049
EISBN: 978-1-62708-258-7
... of cementite renders white cast iron very brittle. Although white iron has many uses, early investigators found that through an extended heat treatment, the cementite can decompose into graphite and ferrite. The result is malleable iron. The microstructure of malleable iron can be seen in Fig. 3.23 , where...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030082
EISBN: 978-1-62708-282-2
... Abstract This chapter discusses the effects of metallurgical variables on dealloying corrosion. It begins by describing the processes involved in dealloying of metal alloys in aqueous environments. This is followed by a discussion on the morphology of porous dealloyed structures below and above...