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austenite-spheroidal graphite eutectic system

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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
... of the eutectic, the austenite, forming on the surrounding dendrites of austenite. The spheroids are 100% C in the form of graphite, with the characteristic graphite sheets rotated around so as to be nearly parallel to the surface of the spheroids, as shown in Table 16.2 . The spheroid diameter of a ductile iron...
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
... Austempered ductile iron Spheroidal graphite B, AF Silver-gray Heat treatment (a) F, ferrite; P, pearlite; A, austenite; M, martensite; B, Bainite; AF, ausferrite. (b) White irons are not usually heat treated, except for stress relief and to continue austenite transformation. Ranges...
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
... ductile cast iron malleable cast iron compacted graphite cast iron IRON-CARBON ALLOYS with a carbon content of less than 2 wt% are normally classified as steels, while alloys with greater than 2 wt% C are classified as cast irons. The carbon content of the eutectic in the Fe-Fe 3 C system is 4.3 wt...
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
... diagram in the region of the graphite containing eutectic. Gr: graphite; L: liquid; gamma, γ: austenite. The effect of increasing the silicon content on the important equilibria is evident. The increase of the silicon content causes the reduction of carbon content in the eutectic, the reduction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560005
EISBN: 978-1-62708-291-4
....) or chemical composition (CuAl 2 , Mg 2 Si, TiN, etc.), and phase mixtures (eutectics, eutectoids, etc.) are described by such terms as lamellar, rod , and spheroidal , which allude to the prominent growth mode to provide a general description of morphology. The single exception to this kind...
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
.... , and Burdin M.F. , Ed., American Foundrymen’s Society , 1992 Ductile cast iron, also known as nodular iron or spheroidal-graphite (SG) iron, is cast iron in which the graphite is present as tiny spheres (nodules) (see Fig. 1 ). In ductile iron, eutectic graphite separates from the molten iron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
... the graphite is controlled by heat treatment). In cooling below the eutectic temperature, the austenite can decompose into pearlite, ferrite, martensite, or bainite, depending mainly on cooling rate and on the composition of the austenite. Gray cast irons, in general, have a pearlitic matrix at slow...
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
... ( Fig. 5.13 ). In this case, there is no cooperative eutectic-like growth of both phases; instead, there is separate growth of spheroidal graphite particles as a primary phase (at least during the initial stages), together with austenite dendrites, known as divorced growth. Cast iron often exhibits...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220129
EISBN: 978-1-62708-259-4
... Dendrites, Iowa State University , private communication 9. Ruxanda R. , Beltran-Sanchez L. , Massone J. , and Stefanescu D.M. , On the eutectic Solidification of Spheroidal Graphite Iron—An Experimental and Mathematical Modeling Approach , Proceedings of Cast Iron Division, AFS...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420143
EISBN: 978-1-62708-310-2
...Abstract Abstract This chapter discusses the characteristics of eutectoid transformations, a type of solid-state transformation associated with invariant reactions, focusing on the iron-carbon system of steel. It describes the compositions, characteristics, and properties of ferrite, eutectoid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... equilibrium phase δ-ferrite (δ-iron) bcc Isomorphous with α-iron; high-temperature phase; stable equilibrium phase Austenite (γ-iron) fcc Relatively soft medium-temperature phase; stable equilibrium phase Cementite (Fe3C) Complex orthorhombic Hard metastable phase Graphite Hexagonal Stable...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
...-packed (hcp) crystal structure Fig. 5 Body-centered cubic (bcc) crystal structure Fig. 1 Space lattice and the unit cell Fig. 29 Effect of silicon on the eutectic temperatures of austenite-graphite and austenite-cementite. Source: Ref 6 ; adapted from Ref 7 Fig. 6...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410621
EISBN: 978-1-62708-265-5
...-forming elements, and final solidification occurs by complex eutectic solidification, which produces several morphologies of carbides and austenite. Figure 24.8 shows examples of feathery (austenite plus M 6 C and MC), herringbone (austenite plus M 6 ), and blocky (austenite plus MC) eutectic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... face center positions in bcc lattice of α-iron and (b) occupy edge center positions in fcc lattice of γ-iron Thus, besides the melt or liquid phase (i.e., solution of carbon in molten iron) there are four important solid phases in the iron-carbon system, namely δ-ferrite, austenite, ferrite...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... of silicon on the critical temperature of cast iron containing 3.3 wt% C. Source: Ref 1 Fig. 3 Effect of silicon on the eutectic temperatures of austenite-graphite and austenite-cementite. Source: Ref 2 , adapted from Ref 3 Fig. 1 Ternary equilibrium diagram at 2% Si for iron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240153
EISBN: 978-1-62708-251-8
...Abstract Abstract This chapter examines the isothermal phase transformations of the iron-carbide system. The discussion includes the formation of ferritic, eutectoid, hypoeutectoid, hypereutectoid, bainitic, and martensitic microstructures as well as their properties, composition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.9781627082976
EISBN: 978-1-62708-297-6
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
... • Solidification Characteristics of Cast Irons , ASM Specialty Handbook: Cast Irons , Davis J.R. , Ed., ASM International , 1996 , p 16 – 31 Gray irons are a group of cast irons that form flake graphite during solidification, in contrast to the spheroidal graphite morphology of ductile irons...