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Title: Effect of Nano-Particle Addition on Grain Structure Evolution of Friction Stir-Processed Al 6061 During Postweld Annealing
Authors: Guo, Junfeng
Lee, Bing Yang
Du, Zhenglin
Bi, Guijun
Tan, Ming Jen
Wei, Jun
Keywords: Friction stir processing
Issue Date: 2016
Source: Guo, J., Lee, B. Y., Du, Z., Bi, G., Tan, M. J., & Wei, J. (2016). Effect of Nano-Particle Addition on Grain Structure Evolution of Friction Stir-Processed Al 6061 During Postweld Annealing. JOM, 68(8), 2268-2273.
Series/Report no.: JOM
Abstract: The fabrication of nano-composites is challenging because uniform dispersion of nano-sized reinforcements in metallic substrate is difficult to achieve using powder metallurgy or liquid processing methods. In the present study, Al-based nano-composites reinforced with Al2O3 particles have been successfully fabricated using friction stir processing. The effects of nano-Al2O3 particle addition on grain structure evolution of friction stir-processed Al matrix during post-weld annealing were investigated. It was revealed that the pinning effect of Al2O3 particles retarded grain growth and completely prevented abnormal grain growth during postweld annealing at 470°C. However, abnormal grain growth can still occur when the composite material was annealed at 530°C. The mechanism involved in the grain structure evolution and the effect of nano-sized particle addition on the mechanical properties were discussed therein.
ISSN: 1047-4838
DOI: 10.1007/s11837-016-1991-1
Rights: © 2016 The Minerals, Metals & Materials Society. This is the author created version of a work that has been peer reviewed and accepted for publication by JOM, The Minerals, Metals & Materials Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SIMTech Journal Articles

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