Friction-stir welding: microstructural characterization

L.E. MurrDept. of Metallurgical and Materials Engineering and Materials Research Institute, The University of Texas at El Paso, El Paso, TX79968-0520USA

R.D. FloresDept. of Metallurgical and Materials Engineering and Materials Research Institute, The University of Texas at El Paso, El Paso, TX79968-0520USA

O.V. FloresDept. of Metallurgical and Materials Engineering and Materials Research Institute, The University of Texas at El Paso, El Paso, TX79968-0520USA

J.C. McClureDept. of Metallurgical and Materials Engineering and Materials Research Institute, The University of Texas at El Paso, El Paso, TX79968-0520USA

G. LiuDept. of Metallurgical and Materials Engineering and Materials Research Institute, The University of Texas at El Paso, El Paso, TX79968-0520USA

D. BrownDept. of Metallurgical and Materials Engineering and Materials Research Institute, The University of Texas at El Paso, El Paso, TX79968-0520USA

Abstract

The microstructures of friction-stir welded aluminum alloys (1100 and 6061) are dominated by dynamic recrystallization. Friction-stir welding of 6061 aluminum to copper produced a complex, intercalated microstructure which was also dominated by dynamic recrystallization. The friction-stir welding process is characterized by extreme plastic deformation in the solid state; there is no associated melting.

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Friction-stir welding: microstructural characterization

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Friction-stir welding: microstructural characterization

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