Original scientific paper
Microstructure and Mechanical Properties of Friction Stir Welded AlMg4.5Mn Alloy
Damjan Klobčar
orcid.org/0000-0002-6130-0328
; Faculty of Mechanical Engineering, University of Ljubljana
Ladislav Kosec
; Faculty of Natural Sciences and Engineering, Univeristy of Ljubljana
Tomaž Pepelnjak
; Faculty of Mechanical Engineering, University of Ljubljana
Janez Tušek
; Faculty of Mechanical Engineering, University of Ljubljana
Abstract
A comprehensive research of Friction Stir Welding of 4 mm thick sheet aluminium alloy (AlMg4.5Mn) for forming was done. A vast variety of process parameters was tested according to the plan of experiments at constant 2° tilt angle. Specially designed tensile test specimens were sectioned perpendicularly to the welding direction. The microstructure was prepared for the observation on a light microscope under the polarized light source. Vickers micro-hardness was measured. The results show the influence of FSW process parameters on the formation of the microstructure and mechanical properties.
Keywords
friction stir welding; AlMg4.5Mn; welding parameters; mechanical properties; weld failures
Hrčak ID:
84227
URI
Publication date:
18.6.2012.
Visits: 2.026 *