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iron-iron carbide equilibrium diagram

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Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006246
EISBN: 978-1-62708-163-4
...Abstract Abstract This article presents ternary alloy phase diagrams to be used primarily by engineers to solve industrial problems. The diagrams presented are for stable equilibrium conditions, with the exception of metastable conditions for some diagrams involving carbon and iron. In some...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005190
EISBN: 978-1-62708-187-0
.... 11 . The solubility of carbon in iron is described in Eq 15 , 16 , 17 , 18 , 19 , 20 , 21 . ( Ref 20 , 21 ). Fig. 11 Phase diagram for the binary iron-carbon system. Source: Ref 19 For the stable system, that is, with graphite as the equilibrium high-carbon phase, Eq 15 , 16...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005819
EISBN: 978-1-62708-165-8
..., so much so that the distorted bcc lattice rapidly transforms into a new metastable phase called martensite. Martensite does not appear as a phase on the iron-carbon equilibrium phase diagram because it is a metastable (nonequilibrium) phase that occurs from rapid cooling. The unit cell...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.9781627081634
EISBN: 978-1-62708-163-4
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006221
EISBN: 978-1-62708-163-4
... casting. Another industrially significant eutectic is in the lead-tin system for solders. Fig. 5 Iron-carbon phase diagram with constituents in the form of cementite (Fe 3 C) and graphite (as the equilibrium form of carbon). Although cementite is strictly a metastable phase that eventually...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003106
EISBN: 978-1-62708-199-3
... White 1.8–3.6 0.5–1.9 0.25–0.8 0.06–0.2 0.06–0.2 Malleable 2.2–2.9 0.9–1.9 0.15–1.2 0.02–0.2 0.02–0.2 Fig. 1 Approximate ranges of carbon and silicon for steel and various cast irons The Iron-Iron Carbide-Silicon System A section through the ternary Fe-Fe 3 C-Si diagram...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006319
EISBN: 978-1-62708-179-5
... during austempering. Presence of Graphite As shown by a binary cut of the Fe-C-Si (2.5% Si) stable equilibrium diagram in Fig. 10 , the initial structure before austenitic transformation of cast irons on cooling is not just austenite, as in the case of most steels, but it also contains graphite...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006295
EISBN: 978-1-62708-179-5
... in iron as solid solution extend the temperature stability range of austenite (γ promoters), while the bcc elements (e.g., silicon, chromium, vanadium) promote the ferrite phase. The equilibrium phase diagram of the binary Fe-C system includes the stable (Fe-graphite) and metastable (Fe-Fe 3 C...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005786
EISBN: 978-1-62708-165-8
..., but many of the principles related to austenitizing heat treatments are also applicable to austenite behavior during direct casting processes. The iron-carbon equilibrium phase diagram, shown in Fig. 1 , is a good starting point from which to consider austenite formation in steels. While the Fe-Fe 3 C...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003085
EISBN: 978-1-62708-199-3
..., a concept used to facilitate study of the effects of conditions of state. By “isolated,” it is meant that there is no interchange of mass with its surroundings. The substances in alloy systems, for example, might be two metals such as copper and zinc; a metal and a nonmetal such as iron and carbon; a metal...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005213
EISBN: 978-1-62708-187-0
..., the white eutectic or austenitic (γ), iron carbide (Fe 3 C) forms. If solidification follows the stable diagram iron-graphite (a significant amount of silicon is required for this to occur), the gray eutectic, austenite-graphite (Gr), results. Depending on composition, cooling rate, and liquid...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003195
EISBN: 978-1-62708-199-3
... and the temperature-dependent solubility of carbon in austenite and ferrite, as controlled by alloying and processing, account for the great variety of microstructures and properties produced in steels. Fig. 1 Iron-carbon equilibrium diagram up to 6.67 wt% C. Solid lines indicate Fe-Fe 3 C diagram; dashed...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005818
EISBN: 978-1-62708-165-8
.... The Iron-Nitrogen Phase Diagram Interpretation and The Development of Porosity There is a lot of misunderstanding among heat treatment practitioners and also in the literature regarding the interpretation of the stability, metastability, and instability of nitride and carbide (and carbonitride...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005859
EISBN: 978-1-62708-167-2
..., the metastable bainite will decompose to ferrite and carbide, consistent with the phase fields shown on the equilibrium iron-carbon diagrams in Fig. 1 and 2 . The positions of the boundary lines in Fig. 6 depend on time and temperature because the fundamental transformations leading to changes...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001008
EISBN: 978-1-62708-161-0
... solubility of carbon in austenite and ferrite, as controlled by alloying and processing, account for the great variety of microstructures and properties produced in steels. Fig. 1 Iron-carbon equilibrium diagram up to 6.67 wt% C. Solid lines indicate Fe-Fe 3 C diagram; dashed lines indicate iron...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006322
EISBN: 978-1-62708-179-5
... practices for annealing ductile iron castings for different alloy contents and for castings with and without eutectic carbides. The article discusses the induction surface hardening and remelt hardening of ductile iron. It concludes with information on the effect of heat treatment on fatigue strength...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003723
EISBN: 978-1-62708-177-1
.... This distinctive morphology is a type of eutectoid structure (as briefly described in the section “The Iron-Carbon Eutectoid” in this article and in the separate article “Invariant Transformation Structures” in this Volume). The key point is that equilibrium phase diagrams are important in identifying phase...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006299
EISBN: 978-1-62708-179-5
... Iron-carbon phase diagram The standard terminology used in cooling curve analysis is introduced in Fig. 3 as follows: T L , equilibrium liquidus temperature; T E , equilibrium eutectic temperature; T LA , temperature of liquidus arrest; T Emin , temperature of eutectic undercooling; T...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005937
EISBN: 978-1-62708-168-9
...; however, the standards for ADI are more specific concerning the final matrix microstructure than those for ductile iron. All of the aforementioned ADI standards require an ausferrite matrix microstructure after heat treatment. Small amounts of pearlite, martensite, or carbides that will not affect...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006300
EISBN: 978-1-62708-179-5
... of equilibrium and the tie lines. Calculations performed with Fe-alloys Database (TCFE8) from Thermo-Calc Software AB. Figure 1(b) shows an isothermal section of the Fe-rich corner of the Fe-C-Si stable phase diagram at 810 °C (1490 °F). This temperature has been selected so that a Fe-C-Si cast iron...