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recrystallization kinetics

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Published: 01 January 2005
Fig. 22 Effect of penultimate grain size on the recrystallization kinetics of a low-carbon steel, cold rolled 60% and annealed at 540 °C (1005 °F). Note the incubation time is shortened as the penultimate grain size before cold rolling is decreased. Source: Ref 13 More
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Published: 01 December 2004
Fig. 20 Effect of penultimate grain size on the recrystallization kinetics of a low-carbon steel, cold rolled 60% and annealed at 540 °C (1005 °F). Note the incubation time is shortened as the penultimate grain size before cold rolling is decreased. Source: Ref 9 More
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005403
EISBN: 978-1-62708-196-2
... dynamic recrystallization (DDRX). The article discusses the assumptions and simplifications for the Avrami analysis. It describes the effects of nucleation and growth rates on recrystallization kinetics and recrystallized grain size based on the Johnson-Mehl-Avrami-Kolmogorov model for static...
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Published: 01 January 2005
Fig. 28 Kinetics of secondary recrystallization for cube texture formation in Fe-3Si during isothermal annealing at 1050 °C (1920 °F). The characteristics of this curve for secondary recrystallization are quite similar to those for primary recrystallization. Source: Ref 14 More
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Published: 01 December 2009
Fig. 13 Static recrystallization behavior of commercially pure titanium rolled to a thickness reduction of 60% and annealed at 600 °C (1100 °F). (a) Measured recrystallization kinetics. (b) Corresponding experimental Avrami plot. (c) Predicted kinetics from a Monte Carlo simulation; see text More
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005414
EISBN: 978-1-62708-196-2
... recrystallization that nucleates during deformation undergoes completion in the interstand region. This is referred to as metadynamic recrystallization. The extent of these microstructural changes in the interstand region depends on their kinetics in relation to the time interval available before the next pass...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005408
EISBN: 978-1-62708-196-2
... 2 ). The microstructure state of the slab before hot rolling in terms of both solutes and precipitates significantly influences the evolution of the subsequent microstructure by affecting recrystallization mechanisms and kinetics and thereby also final-gage properties of aluminum sheets. Therefore...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005401
EISBN: 978-1-62708-196-2
... ) simulated texture-controlled grain h during beta annealing of Ti-6Al-4V using the phase-field method. The effect of grain-boundary energy/mobility and specific type of initial texture on grain-growth kinetics and the evolution of the different texture components were evaluated. Recrystallization of Beta...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005432
EISBN: 978-1-62708-196-2
... microstructural evolution, from which the Avrami equation for recrystallization kinetics is “rediscovered.” An important point is that the philosophy underlying the CA approach mimics our apprehension of the physical world. Bird “A” does not know what trajectory bird “B” is taking several meters away...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003995
EISBN: 978-1-62708-185-6
... a TMP schedule: The strain required for recrystallization to be initiated The kinetics of recrystallization The recrystallized austenite grain size These issues are considered below, for static and dynamic recrystallization in turn. Static Recrystallization Strain Required...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005459
EISBN: 978-1-62708-196-2
... by their topology and kinetics. Discontinuous dynamic recrystallization (DDRX), or the kind described in the previous paragraph, was observed and quantified first. It occurs in steels forged in the austenitic domain as well as in copper and brass alloys. During DDRX, new grains typically appear first...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004027
EISBN: 978-1-62708-185-6
... . This assumes that any effects of static recovery between the two passes have been eliminated by the strain of the second pass. The kinetics of static recrystallization are then computed from Eq 2 by deriving empirical equations from experimental data for the effects of the variables d o , ε, and Z...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... steady-state flow stress (σ ss / G ) ( Fig. 8 ). Discontinuous Dynamic Recrystallization (DDRX) The key parameters that characterize DDRX are the dynamically-recrystallized grain size d drx and the kinetics of recrystallization as a function of strain ε. Devadas et al. ( Ref 16 ) have...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004019
EISBN: 978-1-62708-185-6
... force for its migration will influence the kinetics of recrystallization. For example, impurities, solutes, or fine second-phase particles will inhibit boundary migration; therefore, their presence will retard recrystallization. Figure 21 shows the pinning of a mobile low-angle boundary by a fine...
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Published: 01 December 2009
Fig. 6 Two-dimensional simulations of primary static recrystallization in a deformed aluminum polycrystal on the basis of crystal-plasticity finite-element data. The figure shows the change in both microtexture (upper images) and dislocation density (lower images), which was derived from More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003743
EISBN: 978-1-62708-177-1
...-angle boundary or the driving force for its migration will influence the kinetics of recrystallization. For example, impurities, solutes, or fine second-phase particles will inhibit boundary migration; therefore, their presence will retard recrystallization. Figure 19 shows the pinning of a mobile low...
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Published: 01 August 2013
Fig. 10 During batch annealing of steel sheet coil, (a) the cycle time increases with decrease in sheet thickness for a given coil diameter due to increased contact resistance, and (b) reduction in heating rate enhances the annealing kinetics due to AlN precipitation-recrystallization-grain More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005599
EISBN: 978-1-62708-174-0
... activated transformation characterized by the nucleation and growth of new strain-free grains. The reaction is driven by the stored energy in the cold-worked matrix, and the reaction kinetics is a function of both the nucleation rate and the growth rate. Recrystallization leads to the formation of nearly...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005409
EISBN: 978-1-62708-196-2
..., recrystallization heat treatment in the beta field, and secondary alpha+beta hot working ( Ref 5 ). The initial steps of the process (beta and initial alpha+beta working and beta recrystallization) are employed to transform the ingot structure of relatively large columnar beta grains into a structure of finer (∼0.5...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005787
EISBN: 978-1-62708-165-8
... enhances the annealing kinetics due to AlN precipitation-recrystallization-grain growth interactions. Source: Ref 16 The common practice of controlling an annealing operation through the core temperature can be deceptive due to the nonlinear phase-transformation effects. For example, during batch...