Effect of Reinforcement Addition on Microstructure and Mechanical Properties of Al Matrix Composites

Guo Jun Ma; Yu Tian Ding; Pei Peng Jin

doi:10.4028/www.scientific.net/AMR.989-994.515

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Effect of Reinforcement Addition on Microstructure...

Effect of Reinforcement Addition on Microstructure and Mechanical Properties of Al Matrix Composites

Abstract:

The study investigates the influence of different fraction of Mg₂B₂O5 whiskers (5, 10, 15 and 20vol.% ) on the microstructure of the hot extruded composite as well as on the mechanical properties in the same condition. The results indicate that the process is available for producing the composite, image analysis shows the whisker tends to cluster together with increasing content of reinforcement. When the content of the reinforcement is 10%, the composites exhibit the best mechanical properties, meanwhile, it demonstrate cluster is unfavorable to the improvement of properties of materials. The ductile failure of 6061Al matrix, the reinforcement fracture and the whisker-matrix interface debonding acted as the main mechanism of fracture nucleation.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

515-518

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.515

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Online since:

July 2014

Authors:

Guo Jun Ma*, Yu Tian Ding, Pei Peng Jin

Keywords:

Al Matrix Composites, Hot Extrusion, Mechanical Property, Microstructure, Whisker

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* - Corresponding Author

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