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<title lang=en>Sub-grain boundary mobilities during recovery of binary Al-Mn alloys</title>
<creator>Barou, Fabrice</creator>
<creator>Maurice, Claire</creator>
<creator>Feppon, Jean-Marie</creator>
<creator>Driver, Julian, </creator>
<contributor>Plasticité, Endommagement et Corrosion des Matériaux (PECM-ENSMSE) ; École des Mines de Saint-Étienne (Mines Saint-Étienne MSE) ; Institut Mines-Télécom [Paris] - Institut Mines-Télécom [Paris] - SMS - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Département Microstructures et Traitements Thermomécaniques (MTT-ENSMSE) ; École des Mines de Saint-Étienne (Mines Saint-Étienne MSE) ; Institut Mines-Télécom [Paris] - Institut Mines-Télécom [Paris] - SMS</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Alcan Centre de Recherches de Voreppe ; Alcan</contributor>
<description>International audience</description>
<source>International Journal of Materials Research</source>
<identifier>emse-00463551</identifier>
<identifier>https://hal-emse.ccsd.cnrs.fr/emse-00463551</identifier>
<source>https://hal-emse.ccsd.cnrs.fr/emse-00463551</source>
<source>International Journal of Materials Research, 2009, 100 (4), pp.516-521. 〈10.3139/146.110057〉</source>
<identifier>DOI : 10.3139/146.110057</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.3139/146.110057</relation>
<language>en</language>
<subject lang=en>Sub-boundary mobilities</subject>
<subject lang=en>Al-Mn alloys</subject>
<subject lang=en>SEM/EBSD</subject>
<subject lang=en>Activation energies</subject>
<subject lang=en>Recovery</subject>
<subject>[SPI.MAT] Engineering Sciences [physics]/Materials</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The influence of Mn solute atoms on sub-grain boundary mobilities in Al has been determined by accurate electron backscatter diffraction analysis of the sub-grain sizes and misorientations during recovery annealing. High purity Al-0.1 and 0.3 wt.% Mn alloys were deformed by plane strain compression at room temperature to equivalent strains of 1.8 and annealed in the temperature range 150-300 °C. An original method of image analysis on sub-boundaries from electron backscatter diffraction maps was applied to quantify the sub-grain size distributions. The change in average sub-grain size with time at several temperatures was then used to estimate sub-grain boundary mobilities in both Al-Mn alloys. The activation energies for sub-grain mobility were found to be 48 and 52 and kJ.mol<sup>-1</sup> for the 0.1 and 0.3 % Mn alloys respectively, with the higher Mn alloy exhibiting lower rates. The sub-boundary mobilities are higher than expected from previous similar work on deformed Al-Si crystals. The orientation dependence of sub-grain growth is also examined.</description>
<date>2009-04</date>
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