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iron-carbon system

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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
..., and metallurgy. The use of time-temperature-transformation (TTT) diagrams in understanding the phase transformations and the changes in the isothermal transformation curves due to the addition of carbon and other alloying elements are also discussed. isothermal phase transformations iron-carbide system...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... to take advantage of eutectic solidification in the binary iron-carbon system. Like steel, heat treatment of cast iron includes stress relieving, annealing, normalizing, through hardening, and surface hardening. This chapter introduces solid-state heat treatment of iron castings, covering general...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050093
EISBN: 978-1-62708-311-9
... is reached. Ae 1 , equilibrium transformation temperature in steel. Source: Ref 2 Abstract Abstract This chapter covers the fundamentals of heat treating. It begins with a review of the composition, classification, and properties of iron and steel, the phases of the iron-carbon system...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... strength. Source: Ref 14 Abstract Abstract This chapter discusses the processes used in manufacturing to thermally alter the properties of metals and alloys. It begins with a review of the iron-carbon system, the factors that affect hardenability, and the use of continuous cooling transformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... discusses the types, methods, and advantages of heat treating procedures, including annealing, normalizing, tempering, and case hardening. It describes the iron-carbon system, the formation of equilibrium and metastable phases, and the effect of alloy elements on hardenability and tempering response...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440009
EISBN: 978-1-62708-262-4
... to discussion on the iron-carbon alloy system. The chapter also describes the effect of carbon on the constitution of iron and of the solubility of carbon in iron. It provides information on transformations and on the classification of steels by carbon content. The chapter ends with a discussion on the effect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410113
EISBN: 978-1-62708-265-5
... Classification Systems for Ferritic Microstructures References References 7.1 Symposium Book, International Symposium on New Aspects of Microstructures in Modern Low Carbon High Strength Steels , The Iron and Steel Institute of Japan, Tokyo , 1994 7.2 Special Issue on New Aspects...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240075
EISBN: 978-1-62708-251-8
... input and coring, or alloy segregation. For example, the iron-carbon system has a eutectic at composition of 4.3 wt% C, which is the basis of cast irons. Many other binary systems have phase diagrams with multiple eutectic transformation compositions. Note that since the eutectic is the lowest...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410017
EISBN: 978-1-62708-265-5
... phases and the temperature at which the three phases coexist under equilibrium conditions at constant pressure are invariant and fixed in the two-component iron-carbon system. These three-phase equilibria, assuming Fe 3 C as the stable high-carbon phase, are characterized as follows: At 1495 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140189
EISBN: 978-1-62708-264-8
... eutectoid occurs at 727 °C (1340 °F) and 0.77% C, whereas a eutectoid occurs in the iron-nitrogen diagram at 590 °C (1095 °F) and 2.3% N. In the iron-carbon system, the phases present below the eutectoid temperature are alpha iron + Fe 3 C, while in the iron-nitrogen system, they are alpha iron + Fe 4 N...
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
... Malleable iron (Fe-2.65C-1.2Si-0.53Mn-0.06P-0.21S-0.08Cr-0.10Cu-0.07Ni-<0.01Al). Temper graphite type III with maximum size of 80 μm. As-polished. Original magnification: 100× Fig. 10.11 Simplified phase diagram of iron-carbon system of a carbon equivalent with silicon at 2% Si Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060073
EISBN: 978-1-62708-261-7
... ) approach the eutectic point of 4.30 wt% C in the iron-carbon system (see the iron-carbon phase diagram in Chapter 9, “Heat Treatment of Steel,” in this book). In the iron-carbon system, the eutectic composition (4.30 wt% C) results in a melting point of 1140 °C. This is much lower than the melting point...
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 January 1998
DOI: 10.31399/asm.tb.ts5.t65900045
EISBN: 978-1-62708-358-4
... structure iron-carbon system martensite phase diagrams tool design tool steel Steels are alloys of iron and other elements. Carbon is the major alloying element for many types of steels, and tool steel technology, similar to that of low-alloy carbon steels, is in large part based on the control...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... reasons, including the minimization of both energy input and a phenomenon known as coring (alloy segregation) during solidification. The iron-carbon system also has a eutectic point at a composition of 4.3 wt% C, which forms the basis for cast irons. In contrast to an isomorphous system, the element...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140009
EISBN: 978-1-62708-264-8
... where one solid transforms into two solids. The eutectoid point in the iron-carbon system has a composition of 0.77% C, and steels with compositions less than this value are called hypoeutectoid steels. The eutectoid temperature is traditionally called the A 1 temperature. Fig. 3.3 Portion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240053
EISBN: 978-1-62708-251-8
.... The martensitic reaction occurs in alloys other than steels but does not result in the tremendous strengthening that results from the transformation in steels. The martensitic reaction in steel is covered in detail in Chapter 10, “The Iron-Carbon System,” and Chapter 11, “Heat Treatment of Steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... a large number of mixed dislocations, which are any combination of an edge dislocation and a screw dislocation. The same concept also applies to the Fe-C eutectoid. The addition of substitutional alloying elements causes the eutectoid composition and temperature to shift in the iron-carbon system...
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...