Microstructure and Mechanical Properties of Al/AlN Surface Composite Fabricated via Multi-Pass Friction Stir Processing

Min Yang; Chao Qun Song; Xiu Zhong Liu; Cang Long Cai

doi:10.4028/www.scientific.net/AMM.490-491.192

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 490-491Microstructure and Mechanical Properties of Al/AlN...

Microstructure and Mechanical Properties of Al/AlN Surface Composite Fabricated via Multi-Pass Friction Stir Processing

Abstract:

The AlN particles reinforced composite was fabricated on the surface of aluminum 6061-T6 alloy rolled plate by five passes friction stir processing (FSP). Microstructure of FSPed sample was characterized by optical microscope and scanning electron microscope. AlN particles in composite were verified by EDS and XRD. Microhardness and resistance to wear were also investigated. Results show that grains in composite were refined by dynamic recrystallization and uniformly dispersed AlN particles. Composite region bonded with the Al substrate well. No reaction occurred at the interface between AlN and Al matrix. By comparison with base metal, the FSP-produced composite exhibited improved microhardness and substantial wear weight loss reduction.

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Periodical:

Applied Mechanics and Materials (Volumes 490-491)

Pages:

192-197

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.490-491.192

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Online since:

January 2014

Authors:

Min Yang*, Chao Qun Song, Xiu Zhong Liu, Cang Long Cai

Keywords:

Aln Particles, Friction Stir Processing (FSP), Surface Composite, Wear

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