Friction Stir Welding of Aluminium Based Composites Reinforced with Al2O3 Particles

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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.

Info:

Periodical:

Materials Science Forum (Volumes 638-642)

Main Theme:

Edited by:

T. Chandra, N. Wanderka, W. Reimers , M. Ionescu

Pages:

87-92

DOI:

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

Citation:

L. Ceschini et al., "Friction Stir Welding of Aluminium Based Composites Reinforced with Al2O3 Particles ", Materials Science Forum, Vols. 638-642, pp. 87-92, 2010

Online since:

January 2010

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$35.00

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