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austenite-iron carbide eutectic system

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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
... the carbon solubility in austenite (arrow 1), increases the eutectic temperature (arrow 2), and favors the precipitation of graphite (arrow 3). Fig. 17.101 Tridimensional reconstruction of temper graphite in malleable cast iron. Sectioning performed by focused ion beam (FIB) and images SE, SEM...
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
...-carbon system the eutectic point occurs at a composition of 4.26% C and a temperature of 1148 °C. Eutectic solidification can begin at a composition of 2.08 % C, which is the point where the maximum solubility of carbon in austenite is achieved. If molten iron has more than 2.08 % C, then the melt does...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
... into the remaining austenite, eventually forming iron carbide (cementite) along with the ferrite. If martensite is heated or tempered, the trapped carbon will precipitate and eventually form iron carbide. The microstructure of a steel with a fully tempered martensitic structure is shown in Fig. 2.30 . Not all...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560005
EISBN: 978-1-62708-291-4
... gradually became adopted. However, Smith rightly pointed out that this system of nomenclature was in use long before the phases, phase mixtures, and phase equilibria in iron and steel were clearly established, thus creating the considerable confusion in interpretation of the microstructures of ferrous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... steels? In other words, can standard chromium-nickel stainless steels be replaced with an austenitic alloy system? The answer came in two stages—in both instances with the help of phase diagrams. It was first determined that manganese should be capable of replacing nickel because it stabilizes the γ-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
... 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 November 2007
DOI: 10.31399/asm.tb.smnm.t52140175
EISBN: 978-1-62708-264-8
..., and their composition ranges are specified in Table 16.1 . Gray and white cast irons are discussed first, followed by malleable and ductile cast irons. In cast irons, a eutectic reaction occurs at the base of the austenite dendrites. The four main cast iron types Table 16.1 The four main cast iron types...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140107
EISBN: 978-1-62708-264-8
... for high-carbon steels). It also addresses process-specific issues, explaining how the presence of carbides (in the two-phase process) produces significant changes, and how homogenization and austenite grain growth influence the single-phase process. austenitization cast iron high-carbon steel low...
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 August 2018
DOI: 10.31399/asm.tb.msisep.t59220129
EISBN: 978-1-62708-259-4
.... The eutectic constituent involving austenite and cementite is called ledeburite after Karl H.A. Ledebur (1837–1906), professor at Freiberg, who studied this constituent in 1882 ( Ref 14 ). These two eutectic reactions are very important in cast iron metallurgy (see Chapter 17, “Cast Irons” ). The first...
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
... in equilibrium with austenite at 870 °C (1598 °F), and as the carbon content of the steels increases from that of H-13 (0.4% C) to D-2 (1.50% C), the amount of M 7 C 3 carbide increases. Fig. 24.3 Isothermal section of iron-rich corner of the Fe-Cr-C system at 870 °C (1598 °F). Compositions of alloys...
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
... on Hardenability Effects of Alloying on Normalizing Effects of Alloying on Austempering Effects of Alloying on Corrosion Behavior Austenitic Nickel-Alloyed Ductile Irons High-Silicon Ductile Irons References References 1. Gundlach R.B. , Loper C.R. Jr. , and Morgensteren B...
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: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730011
EISBN: 978-1-62708-283-9
... solid solution containing a small amount of carbon in solution, and iron carbide. The composition of a single phase may vary from place to place but always varies gradually without abrupt changes. In multiple phase systems, however, there are discontinuities of composition and structure at phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220101
EISBN: 978-1-62708-259-4
...Abstract Abstract This chapter describes the phases and constituents present in iron-carbon steels in near-equilibrium conditions. It explains how to use phase diagrams to predict and manage the development of ferrite, austenite, cementite, and pearlite through controlled cooling. It discusses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
..., the stable equilibrium phases include ferrite, austenite, graphite , and to some extent cementite (as a very stable iron carbide). The metastable phases are pearlite, martensite, and bainite. The phases are summarized in Table 9.1 and described in more detail in this chapter. Important metallurgical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420117
EISBN: 978-1-62708-310-2
... of peritectic structures in iron-base alloys and multicomponent systems. microstructure peritectic systems peritectic transformation SIMILAR TO THE EUTECTIC group of invariant transformations is a group of peritectic reactions, in which a liquid and solid phase decomposes into a new solid phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.9781627082976
EISBN: 978-1-62708-297-6