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Effect of Cycle Index on the Microstructural Evolution of Alumina Particles Reinforced Aluminum Composites Treated by Cryogenic Treatment

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Abstract:

Nanometer Al2O3 particles reinforced Al-Zn-Mg-Cu composites were processed by cryogenic treatment with different cycle index of 1,2 and 3. Transmission Electronic Microscopy (TEM) was utilized to analyze the microstructural evolution of the treated samples. The results show that with the increase of cycle index the precipitate amount and dislocation density have been increased. The precipitates orientation exhibits some preferred orientation. The high amount of precipitates and dislocation density and preferred orientation of precipitates will benefit to increase the mechanical properties of composites.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

310-313

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.310

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Online since:

June 2014

Authors:

Hong Ming Wang, Guirong Li*, Rui Zheng, Pei Si Li, Cong Xiang Peng, Yue Ming Li, Yu Hua Cui, Yu Tao Zhao, Yan Jiang

Keywords:

Composite, Cryogenic Treatment, Cycle Index, Microstructural Evolution

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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