Friction Stir Welding of Aluminium Based Composites Reinforced with Al2O3 Particles

Lorella Ceschini; Iuri Boromei; C. Gambaro; Giangiacomo Minak; Alessandro Morri; Fabrizio Tarterini

doi:10.4028/www.scientific.net/MSF.638-642.87

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HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Friction Stir Welding of Aluminium Based...

Friction Stir Welding of Aluminium Based Composites Reinforced with Al₂O₃ Particles

Abstract:

This paper presents the results of microstructural and mechanical characterization of Friction Stir Welding joints of two aluminum-based particles reinforced composites. The composites were FSW in the extruded and T6 heat treated condition. No post-weld heat treatment was carried out on the FSW joints. Hardness, tensile, low-cycle fatigue and impact tests were carried out. Microstructural and fractographic characterization were performed both on the base and FSW material, in order to investigate the effect of the solid-state welding process on the reinforcement particles and aluminum matrix. The FSW produced high quality joints with good microstructural characteristics: the welded zone displayed a refinement of the Al matrix grain size and reinforcement particles, and a better particle distribution. The FSW specimens showed high efficiency, both in the tensile, impact and fatigue tests.

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Periodical:

Materials Science Forum (Volumes 638-642)

Pages:

87-92

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.638-642.87

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Online since:

January 2010

Authors:

Lorella Ceschini, Iuri Boromei, C. Gambaro, Giangiacomo Minak, Alessandro Morri, Fabrizio Tarterini

Keywords:

Fatigue, Friction Stir Welding (FSW), Hardness, Impact Test, Mechanical Property, Metal Matrix Composite (MMC), Microstructure, Tensile Test

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References

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