Static Recrystallization in Aluminum/Graphene Composites

Abstract:

The aim of this work was to analyze the recrystallization behavior of cold rolled Aluminum/graphene composites during annealing. The Aluminum/graphene composite was cold rolled firstly, and then annealed at different temperature (250°C, 300°C, 350°C, 400°C) and for various time (1 h, 2 h, 8 h, 32 h). Full recrystallization did not occur until the annealing temperature was above 300 °C. With annealing temperature increasing from 250 to 300°C, the hardness of the composites decreased from 49.6 to 27.6 HV. Grain growth were not observed at high annealing temperature and longer annealing time, which suggested that Graphene has strong pinning effect on the grain boundary of Aluminum.

• Periodical: Materials Science Forum (Volume 1016)
• Pages: 1636-1641
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1016.1636
• Online since: January 2021
• Authors: Xiao Dong Wu*, Xiao Li Liu, Ling Fei Cao, Guang Jie Huang
• Keywords: Aluminum/Graphene Composites, Annealing, Grain Size, Microstructure, Recrystallization

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