Sub-boundary mobilities during recovery of binary Al-Mn alloys
type: Dataset
description: Two, high purity, Al-0.1 and 0.3wt%Mn alloys have been cold deformed in plane strain compression to strains of order 1.8 and the kinetics of subsequent recovery by sub-grain coarsening during annealing at 150-300°C measured by high resolution FEG-SEM EBSD. Accurate sub-grain size and misorientation distributions and their evolution with time and temperature have been determined. The average growth rates are then used to estimate the sub-grain boundary mobilities. Growth is analyzed by two well-known growth laws for the average sub-grain size δ (t): i) the standard relation for grain growth: where the exponent n takes values of 2-8 and ii) the relation proposed by Nes for dislocation climb in sub-grain walls: It is shown that the latter relation gives a better fit with the data in terms of the time and temperature dependence of the sub-grain sizes. In particular the activation energies for the logarithmic law are much closer to the values expected for solute-controlled movement of sub-boundaries.
issued: 2026-05-13T23:25:45.786370
language: en
modified: 2026-05-13T23:25:45.786376
contact point: Organization
  fn: CCSD
keyword: al-mn-alloys
keyword: ebsd
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: kinetics
keyword: recovery
keyword: spimatengineering-sciences-physicsmaterials
keyword: sub-grain-growth
landing page: 0255-5476

Sub-boundary mobilities during recovery of binary Al-Mn alloys
type: Distribution
format: HTML
issued: 2026-05-13T23:25:45.791804
modified: 2026-05-13T23:25:45.757503
access URL: https://hal.science/hal-00795441

test_moissonnage_selune
type: Agent