Measurements of grain boundary mobility during recrystallization of a single-phase aluminium alloy

Huang, Yan; Humphreys, F.J.

doi:10.1016/s1359-6454(99)00062-2

Cited by 185 publications

(89 citation statements)

References 18 publications

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“…The values of grain boundary mobility for 0.58T m and 0.50T m are roughly estimated to be 6.48 × 10 − 9 and 3.12 × 10 ). [54][55][56][57][58] The grain boundary mobility for 0.58T m is larger than that for 0.50T m , which agrees with a common sense in temperature dependence of the grain boundary mobility. [54][55][56][57][58] However, we note that the estimated value here includes many effects from various grain boundaries and many triple points.…”

Section: Von Neumann-mullins Relation For Two-dimensionalsupporting

confidence: 83%

Grain Growth in Large-Scale Molecular Dynamics Simulation: Linkage between Atomic Configuration and von Neumann-Mullins Relation

Okita

Shibuta

2016

ISIJ Int.

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Section: Von Neumann-mullins Relation For Two-dimensionalsupporting

confidence: 83%

Grain Growth in Large-Scale Molecular Dynamics Simulation: Linkage between Atomic Configuration and von Neumann-Mullins Relation

Okita

Shibuta

2016

ISIJ Int.

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“…The main drawbacks of the previously developed devices were a relatively low maximal temperature (typically 500°C) or a rather slow heating rate (only few °C.s -1 ) [3][4][5][6], and a poor control of temperature gradients within the sample. More recently, high-temperature in-situ annealing treatments (>1000°C) have been performed by D. Prior's team in Liverpool, with a heating stage implemented in a CAMSCAN SEM especially designed for in-situ experiments [7,8].…”

Section: Introductionmentioning

confidence: 99%

Fast in-situ annealing stage coupled with EBSD: A suitable tool to observe quick recrystallization mechanisms

Bozzolo

Jacomet

Logé

2012

Materials Characterization

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). Samples were cooled down to room temperature to perform EBSD orientation mapping in between successive short-duration heat-treatments. Microstructure evolution snapshots obtained this way allow gaining an insight into recrystallization mechanisms.The interest of such experiments is shown for two examples: static recrystallization of colddeformed pure tantalum, and post dynamic evolution of hot-deformed Zircaloy4.

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“…[30,31] Therefore lattice diffusion of solutes is usually considered as a rate controlling mechanism during subgrain growth, recrystallization and grain growth. [14,20,[32][33][34] An apparent activation energy for recovery may not directly correspond to an ideal diffusion mechanism since the deformation structure is complex. Nevertheless, in the present study Q 0 = 186 16 kJ/mol, as well as Q 0 = 215 kJ/mol if f is used instead of f 2 , is consistent with the diffusion of iron in the bulk of Al as was also found in the end of subgrain growth [14] and during recrystallization [35] of similar Al.…”

Section: A Activation Energy and Recovery Mechanismsmentioning

confidence: 99%

Recovery Kinetics in Commercial Purity Aluminum Deformed to Ultrahigh Strain: Model and Experiment

Hansen

2016

Metall Mater Trans A

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Abstract:A new approach to analyze recovery kinetics is developed from a recent model, and microstructural observations are introduced to supplement hardness measurements. The approach involves two steps of data fitting, and the second step of fitting enables an estimation of the apparent activation energy for recovery. This approach is applied to commercial purity aluminum (AA1050) cold rolled to ultrahigh strain (99.6% reduction in thickness) and annealed at temperatures from 413 K (140 °C) to 493 K (220 °C). The annealing data fit the recovery model well and the analysis shows that the apparent activation energy increases during recovery and approaches 190 kJ/mol at the end of recovery, suggesting that solute drag is an important rate-controlling mechanism. The recovery rate for the highly strained Al is found to be higher than that for Al deformed to a lower strain, an effect which is related to an increase in the stored energy or driving force. These findings form the basis for a discussion of recovery mechanisms and the increase in the apparent activation energy during annealing, suggesting an application of the model when optimizing the structure and strength through annealing of nanostructured materials produced by high strain deformation.2

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Measurements of grain boundary mobility during recrystallization of a single-phase aluminium alloy

Cited by 185 publications

References 18 publications

Grain Growth in Large-Scale Molecular Dynamics Simulation: Linkage between Atomic Configuration and von Neumann-Mullins Relation

Grain Growth in Large-Scale Molecular Dynamics Simulation: Linkage between Atomic Configuration and von Neumann-Mullins Relation

Fast in-situ annealing stage coupled with EBSD: A suitable tool to observe quick recrystallization mechanisms

Recovery Kinetics in Commercial Purity Aluminum Deformed to Ultrahigh Strain: Model and Experiment

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