Abnormal Grain Growth on the Surface of Cold-Rolled AA1235 Aluminum Plate during the Annealing Process

(Switzerland: Trans Tech Publications, 2017), 12 page(s)

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Abstract / Summary: AA1235 aluminum alloys were twin roll cast into a 7.0 mm-thick billet and further rolled into a plate with 70% reduction, followed by annealing at 500 C for 8 h. Abnormal grains were found to be formed on the plate bottom surface. SEM, EBSD, and micro X-ray diffraction were used to analyze the mechanism underlying the abnormal growth of these grains. Results showed that the {100} >001< texture was formed in the surrounding normal grains adjacent to the abnormal grain. The orientation angle between the abnormal grain and its adjacent normal grains was 45°. The {100} >001< texture formed during rolling and annealing accelerated abnormal grain growth. The partially dissolved Fe precipitates were heterogeneously distributed in the plate bottom heterogeneously, which also mainly explained abnormal grain growth.
Field of Interest: Global Issues
Content Type: Periodical article
Duration: 0 sec
Format: Text
Page Count: 12
Publication Year: 2017
Publisher: Trans Tech Publications
Place Published / Released: Switzerland
Subject: Global Issues, Engineering, Social Sciences, Science & Engineering, Materials Science, Engineering, Ciência dos Materiais, Ciencia de Materiales
Keywords and Translated Subjects: Ciência dos Materiais, Ciencia de Materiales