In-Situ SEM/EBSP Analysis during Annealing in a Pure Aluminum Foil for Capacitor

Masakazu Kobayashi; Yoshimasa Takayama; Hajime Kato; Hiroyuki Toda

doi:10.4028/www.scientific.net/MSF.539-543.362

Paper Titles

Methodology for Automatic Control of Automotive Al-Si Cast Components
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Reversion Treatment to Improve Bake Hardening Response of a Twin-Roll Cast 6016 Automotive Sheet
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New Analyses of Pressure Filtration Curves of Al Alloys: A Case Study
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Superplastic Properties of a Newly Developed Al-Mg-High Mn Aluminum Alloy Sheet
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In-Situ SEM/EBSP Analysis during Annealing in a Pure Aluminum Foil for Capacitor
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Damage Mechanisms of 5A06 Al Alloy Weld Joints under Constant Load and Thermal Cycling Condition
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Projection of Extrusion Force of Spray-Formed Al-25wt%Si with High Temperature Compression
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Effect of Fe Content on Hot Tearing of High-Strength Al-Mg-Si Alloy
p.380

Modelling Dispersoid Precipitation in Scandium Containing Aluminium Alloys
p.386

HomeMaterials Science ForumMaterials Science Forum Vols. 539-543In-Situ SEM/EBSP Analysis during Annealing in a...

In-Situ SEM/EBSP Analysis during Annealing in a Pure Aluminum Foil for Capacitor

Abstract:

In-situ SEM/EBSP analysis has been performed during the evolution of the cube texture in a pure aluminum foil. In general, foils for capacitor are manufactured in an industrial process of casting, homogenizing, hot rolling, cold rolling (CR), partial annealing (PA), additional rolling (AR) and final annealing (FA). The foil samples after CR or AR in the process were analyzed by the SEM/EBSP technique at a constant temperature which was step-heated repeatedly by 10-20K from a room temperature to 623K or 598K. In a CRed sample, cube ({001}<100>) grains begin to grow preferentially at 503K to cover the sample. On the other hand, in a sample subjected to PA at 503K and AR, cube grains coarsened rapidly and preferentially at more than 533K in contrast to other oriented small grains remaining their sizes. Further, intragranular misorientation analysis revealed that the misorientation, which corresponds to dislocation density or strain, was much smaller in cube grains than in S ({123}<634>) and Cu ({112}<111>) ones.