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decomposition

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Published: 01 November 2007
Fig. 4.4 Phase diagram analysis of the decomposition of 0.4 and 0.95% C austenite on cooling to the pearlite temperature, 727 °C (1340 °F) More
Image
Published: 01 November 2007
Fig. 4.23 Austenite decomposition products for plain carbon steels during isothermal transformation (quenching and holding) at various temperatures below A 1 More
Image
Published: 01 October 2011
Fig. 9.7 Temperature-time plot of pearlite decomposition by the competing mechanisms of spheroidization and graphitization in carbon and low-alloy steels. The curve for spheroidization is for conversion of one-half of the carbon in 0.15% C steel to spheroidal carbides. The curve More
Image
Published: 01 March 2012
Fig. 9.16 Regions of spinodal decomposition and classical nucleation and growth of precipitates. (a) Phase diagram with a miscibility gap. (b) Variation in free energy with composition for the system shown in (a) at temperature T ′. Source: Ref 9.9 as published in Ref 9.10 More
Image
Published: 01 March 2012
Fig. 9.22 Phase decomposition for the Fe-30Mo (at.%). (a) Two-dimensional time development. (b) Three-dimensional simulation. Source: Ref 9.13 as published in Ref 9.10 More
Image
Published: 01 June 2008
Fig. 4.10 Spinodal decomposition. Source: Ref 3 More
Image
Published: 01 December 2008
Fig. 6.9 The uphill diffusion in the spinodal decomposition. When A-B is strongly repulsive, the diffusion coefficient will take a negative value. (a) The phase diagram. (b) The change in structure and composition. (c) The free energy and the diffusion coefficient More
Image
Published: 01 January 1998
Fig. 8-3 IT diagram for decomposition of austenite in an L-type tool steel containing 1.01% C, 0.50% Mn, 0.30% Si, and 1.21% Cr. Specimens were austenitized for 30 min at 815 °C (1500 °F). Source: Ref 3 More
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Published: 01 January 1998
Fig. 8-12 Isothermal decomposition of austenite at room temperature in an L2 steel, containing 1.0% C, 1.56% Cr, and 0.20% V, after different quenching treatments. Specimens quenched to temperatures above room temperature were held at temperature for 5 min and air cooled. Source: Ref 13 More
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Published: 01 December 2003
Fig. 3 Illustration of the ammonia molecule 2NH 3 and its decomposition More
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Published: 01 December 1996
Fig. 9-1 Schematic illustration of the effect of the decomposition of austenite during cooling on the transformation products present after quenching More
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Published: 01 December 1996
Fig. 9-34 (a) Variation of the beginning and ending times of the decomposition of austenite at 663°C with applied tensile stress. (b) Shift of the isothermal transformation curves as a function of the applied stress. (From E. Gautier, A. Simon, and G. Beck, in Proc. ICOMAT , Nara, Japan (Aug More
Image
Published: 01 December 1996
Fig. 9-46 Calculated start curve of the decomposition of austenite upon continuous cooling for 4068 steel. (From same source as Fig. 9-45 ) More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320005
EISBN: 978-1-62708-347-8
... Schematic showing the effect of cooling rate on the transformation temperatures and decomposition products of austenite of eutectoid carbon steel Fig. 2.6 Isothermal transformation diagram (S-curve) for eutectoid carbon steel Fig. 2.7 Schematic illustrating the relationship between the S...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220193
EISBN: 978-1-62708-259-4
... Abstract Heat treatment is the most common way of altering the mechanical, physical, and even chemical properties of steels. This chapter describes the changes that occur in carbon and low-alloy steels during conventional heat treatments. It explains how austenite decomposition largely defines...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240053
EISBN: 978-1-62708-251-8
... of free energy that governs whether or not a phase transformation is possible, and then the kinetic considerations that determine the rate at which transformations take place. The chapter also describes important solid-state transformations such as spinodal decomposition and martensitic transformation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420171
EISBN: 978-1-62708-310-2
..., and goes on to identify the most common superlattice structures and their corresponding alloy phases. It also discusses the factors that limit the formation of superlattices along with the kinetics of spinodal decomposition and its effect on microstructure development. antiphase boundaries...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560283
EISBN: 978-1-62708-291-4
... precipitation, the decomposition of retained austenite, and recovery and recrystallization. It also includes images that reveal the characteristic structures produced by tempering medium-carbon hypoeutectoid and hypereutectoid steels as well as the effects of plastic deformation, austenitic grain size...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560003
EISBN: 978-1-62708-353-9
... Designation of the temperatures at which the decomposition of austenite associated with the A 1 , A 3 , and A cm temperature begins upon cooling (“r” subscript) and heating (“c” subscript). The temperatures depend on the cooling rate and heating rate. Fig. 2-1 (a) Density versus temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... Abstract The decomposition of austenite, during controlled cooling or quenching, produces a wide variety of microstructures in response to such factors as steel composition, temperature of transformation, and cooling rate. This chapter provides a detailed discussion on the isothermal...