High Density Dislocation and Magnetoplasticity in Nano-Sized Alumina Reinforced 7055Al Composites Subject to High Magnetic Field

Guirong Li; Hong Ming Wang; Pei Si Li; Rui Zheng; Yue Ming Li; Yu Hua Cui; Cong Xiang Peng; Yu Tao Zhao

doi:10.4028/www.scientific.net/AMR.941-944.462

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944High Density Dislocation and Magnetoplasticity in...

High Density Dislocation and Magnetoplasticity in Nano-Sized Alumina Reinforced 7055Al Composites Subject to High Magnetic Field

Abstract:

Nanometer Al₂O₃ particles reinforced 7055Al composites were processed by high magnetic field with 2T,3T and 4T magnetic induced intensity (B) with constant 30 pulses. Transmission Electronic Microscopy (TEM) and X ray diffraction (XRD) were mainly used to analyze some characteristic of the treated samples. The results show that with the increase of B the dislocation density was enhanced apparently. It is deduced that plastic deformation was the main reason of high density dislocation. The magnetoplasticity effect was the source of plastic deformation.