Nucleation and growth during recrystallization

Rios, Paulo Rangel; Siciliano, Fulvio; Sandim, Hugo Ricardo Zschommler; Plaut, Ronald Lesley; Padilha, Angelo Fernando

doi:10.1590/s1516-14392005000300002

Cited by 254 publications

(162 citation statements)

References 63 publications

(68 reference statements)

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“…The kinetics of primary recrystallization is determined by the thermal activation of nucleation mechanisms and nuclei growth, which control the progress of the microstructure during the heat treatment. However, according to Rios and coauthors 30 , the final size of recrystallized grains are more sensitive to applied deformation than the annealing temperature. The amount of deformation affects the rate of recrystallization, that influences the amount of energy stored and consequently the formation of new nuclei or recrystallized grains.…”

Section: Kinetics Of Recrystallization and Grain Growthmentioning

confidence: 99%

Simulation of CP-Ti Recrystallization and Grain Growth by a Cellular Automata Algorithm: Simulated Versus Experimental Results

2017

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The application of cellular automata in materials science requires the conversion of the automata's rules and abstract general properties to rules and properties associated with the material and phenomena under study. In this paper we propose a model which uses cellular automata to simulate recrystallization and grain growth during isothermal and non-isothermal treatments of cold worked polycrystalline materials. The algorithm's spatial and temporal scaling is based on known experimental results for recrystallization and grain growth in highly cold-worked commercially pure titanium grade 2. In the recrystallization, the best agreement between experimental and computational results in terms of the process kinetics and the average diameter of recrystallized grains is obtained from a nucleation model that considers the temperature-dependent nuclei formation rate. In the simulation of grain growth after primary recrystallization, the results indicate the normal growth of an equiaxed grain structure whose kinetics and dimensions are comparable to those observed experimentally.

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Section: Kinetics Of Recrystallization and Grain Growthmentioning

confidence: 99%

Simulation of CP-Ti Recrystallization and Grain Growth by a Cellular Automata Algorithm: Simulated Versus Experimental Results

2017

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“…It is assumed that the thermally activated migration of the LABs combined with the movement of the dislocations stored inside the (sub)grains and/or the diffusion of vacancies, e.g. [18,19] may play the key role in the orientation change of a 'chosen area' with respect to the deformed matrix, and in the formation of HABs (in fact, it is the 'transformation' of the LABs into high-angle ones). Still, the nature of this process is not clear.…”

Section: Introductionmentioning

confidence: 99%

Cube texture formation during the early stages of recrystallization of Al-1%wt.Mn and AA1050 aluminium alloys

Miszczyk

Paul

2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The cube texture formation during primary recrystallization was analysed in plane strain deformed samples of a commercial AA1050 alloy and an Al-1%wt.Mn model alloy single crystal of the Goss{110}<001> orientation. The textures were measured with the use of X-ray diffraction and scanning electron microscopy equipped with an electron backscattered diffraction facility. After recrystallization of the Al-1%wt.Mn single crystal, the texture of the recrystallized grains was dominated by four variants of the S{123}<634> orientation. The cube grains were only sporadically detected by the SEM/EBSD system. Nevertheless, an increased density of <111> poles corresponding to the cube orientation was observed. The latter was connected with the superposition of four variants of the S{123}<634> orientation. This indicates that the cube texture after the recrystallization was a 'compromise texture'. In the case of the recrystallized AA1050 alloy, the strong cube texture results from both the increased density of the particular <111> poles of the four variants of the S orientation and the ~40 o (~<111>)-type rotation. The first mechanism transforms the S def -oriented areas into S rex ones, whereas the second the near S-oriented, as-deformed areas into near cube-oriented grains.

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“…Many mechanisms contribute to that end, where the recovery and recrystallization processes recover and lead to the appearance of new grains through the release of stored energy, the evolution of the recrystallization occurring in a collective manner by nucleation and growth [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Interaction between Recrystallization and Precipitation Processes of an AA8011 Commercial Alloy

Luiggi

Valera

Rodriguez

et al. 2014

Journal of Metallurgy

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Phase changes in a commercial AA8011 alloy from different initial microstructure conditions were studied using thermoelectric power (Δ ), differential scanning calorimetry (DSC), and transmission electron microscopy (TEM) techniques with the purpose of obtaining evidence of the interaction between recovery-precipitation and recrystallization-precipitation processes occurring during nonisothermal heating at different rates. Thermoelectric power and its thermal derivative reflect this evidence by a displacement of the characteristic precipitation peaks, the recovery and recrystallization contributions remaining masked by the strong incidence of the iron precipitation on that property, while DSC measurements detect the emergence of new peaks not observed on thermograms of homogenized samples. An exhaustive study of these peaks permits direct differentiation between precipitation and recoveryrecrystallization contributions. TEM confirms the interaction between both processes by means of local observations.

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Nucleation and growth during recrystallization

Cited by 254 publications

References 63 publications

Simulation of CP-Ti Recrystallization and Grain Growth by a Cellular Automata Algorithm: Simulated Versus Experimental Results

Simulation of CP-Ti Recrystallization and Grain Growth by a Cellular Automata Algorithm: Simulated Versus Experimental Results

Cube texture formation during the early stages of recrystallization of Al-1%wt.Mn and AA1050 aluminium alloys

Experimental Study of the Interaction between Recrystallization and Precipitation Processes of an AA8011 Commercial Alloy

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