1-20 of 225 Search Results for

eutectoid transformation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006228
EISBN: 978-1-62708-163-4
... Abstract Eutectoid and peritectoid transformations are classified as solid-state invariant transformations. This article focuses primarily on the structures from eutectoid transformations with emphasis on the classic iron-carbon system of steel. It reviews peritectoid phase equilibria...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003734
EISBN: 978-1-62708-177-1
... Abstract Solid-state transformations from invariant reactions are of three types: eutectoid, peritectoid, and monotectoid transformations. This article focuses on structures from eutectoid transformations with an emphasis on the classic iron-carbon system of steel. It illustrates the morphology...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006343
EISBN: 978-1-62708-179-5
... the liquid melt. The article describes the macrostructure and dendrite morphology of primary austenite. Eutectoid transformation in the solid state causes the transformation of austenite to pearlite and/or ferrite, producing the as-cast structure. The article discusses the observations of the graphite...
Image
Published: 01 October 2014
Fig. 8 Portion of the isothermal transformation diagram for plain carbon eutectoid steel and a constant cooling rate of 28 °C/s (50 °F/s) plotted from Ae 1 temperature. This illustrates steps involved in relating transformation on cooling to the isothermal temperature. More
Image
Published: 01 June 2016
Fig. 3 Beta transformation in a eutectoid system. Phase relationships can be predicted by extrapolating the β-phase boundaries below the eutectoid temperature. The β phase transforms into α and an intermetallic phase, γ. More
Image
Published: 01 June 2016
Fig. 14 Time-temperature-transformation curves for β-isomorphous and β-eutectoid systems. The curves show ω forming at low temperatures and eventually forming the equilibrium products of α + β. More
Image
Published: 01 December 2004
Fig. 20 Isothermal transformation (IT) diagram for a eutectoid composition (∼0.8% C) of carbon steel (0.81C-0.07Si-0.65Mn, wt%). The IT curves show the time for the start and finish of austenite (γ) transformation into a two-phase structure consisting of ferrite (α) and the cementite carbide More
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
...-phase field show a temperature that increases with the carbon content. In relation with the eutectoid transformation in cast irons, it has been proposed to characterize the lower temperature limit of this metastable three-phase field by extrapolating the austenite-ferrite equilibrium line as illustrated...
Image
Published: 01 December 2004
Fig. 27 Zn-22Al alloy (eutectoid composition). (a) Superplastic, fine-grained structure obtained by annealing at 350 °C (660 °F) and water quenching. (b) Same alloy held 1 h at 350 °C (660 °F) and air cooled. Structure consists of lamellar and granular α and η, both products of eutectoid More
Image
Published: 31 August 2017
Fig. 27 Characteristic parameters of the cooling curve during the eutectoid transformation More
Image
Published: 01 August 2013
Fig. 36 Effect of percentage of substitutional alloying on (a) temperature and (b) carbon content of the eutectoid transformation point. Source: Ref 69 More
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006334
EISBN: 978-1-62708-179-5
.... During the eutectic transition, the effect of CE and alloying elements on graphite shape and distribution can be detected, while in the eutectoid transformation the influence of both alloying elements and graphite shape and distribution on pearlite refinement is observed ( Ref 16 ). Statistical...
Image
Published: 01 December 2004
Fig. 43 Relationship of continuous cooling transformation (CCT) (heavy lines) and isothermal transformation (IT) (light lines) diagrams of eutectoid (0.8 wt% C) steel. See also Fig. 1 for IT diagram of eutectoid steel. Four cooling rates from different positions on a Jominy end-quench More
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006253
EISBN: 978-1-62708-169-6
... that form binary systems ( Fig. 2b ) Beta stabilizers that favor formation of a beta-phase eutectoid ( Fig. 2c ) Neutral alloying elements include tin and zirconium. Although they do not strongly promote phase stability, they retard the rates of transformation and are useful as strengthening agents...
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
... (critical temperature for eutectoid transformation), A 3 (critical temperature for primary ferrite transformation), and A cm (critical temperature for primary cementite transformation). Additional subscripts of “c” or “r” are used to define the critical temperatures under heating or cooling conditions...
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
... equilibrium diagram is shown in Fig. 14 . If austenite in an iron-carbon alloy containing 0.77 wt% C is cooled below 727 °C (1340 °F), then it must transform to ferrite and cementite. This type of solid-state reaction, in which one phase transforms to two other phases, is referred to as a eutectoid reaction...
Image
Published: 01 August 2013
Fig. 7 Relationship of continuous cooling transformation and isothermal transformation curves of a eutectoid steel showing four cooling paths—A, B, C, and D—and corresponding transformation products. Source: Ref 10 More
Image
Published: 01 January 2002
Fig. 9 Effect of tensile stress on pearlite transformation starting and ending times. Isothermal transformation at 673°C (1243 °F), eutectoid steel. The t D and t F times are transformation starting and ending times, respectively. More
Image
Published: 01 August 2013
Fig. 29 Continuous cooling transformation diagram (shaded) and isothermal transformation diagram of a carbon steel with a eutectoid composition. Source: Ref 58 More
Image
Published: 09 June 2014
Fig. 2 Continuous cooling transformation (CCT) diagram (shaded) derived from an isothermal transformation diagram for a carbon having a eutectoid composition (0.8% C) More