Microstructure and Mechanical Properties of Welds of Al – Mg – Si Alloys After Different Modes of Impulse Friction Stir Welding

S. Yu. Kondrat’ev; Yu. N. Morozova; Yu. A. Golubev; C. Hantelmann; A. A. Naumov; V. G. Mikhailov

doi:10.1007/s11041-018-0213-6

Microstructure and Mechanical Properties of Welds of Al – Mg – Si Alloys After Different Modes of Impulse Friction Stir Welding

Autores: Kondrat’ev S.Y.¹, Morozova Y.N.¹^,2, Golubev Y.A.¹^,2, Hantelmann C.², Naumov A.A.¹, Mikhailov V.G.¹^,2
Afiliações:
1. St. Petersburg Polytechnic University
2. Brandenburg University of Technology
Edição: Volume 59, Nº 11-12 (2018)
Páginas: 697-702
Seção: Article
URL: https://journal-vniispk.ru/0026-0673/article/view/236231
DOI: https://doi.org/10.1007/s11041-018-0213-6
ID: 236231

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Welded joints of aluminum alloy 6082-T6 formed by the method of impulse friction stir welding are studied. The effect of the power and frequency of the pulses on the microstructure and mechanical properties of the welded joints is determined. Application of an additional pulse during the welding affects the surface quality and the shape of the weld, the distribution of the oxide layer and of particles of the hardening phase, and the grain size in the zone of dynamic recrystallization.