| The effect of SiC nano particles on mechanical properties of double sided friction stir welding of AA 6061 |
| Paper ID : 1058-UFGNSM-FULL |
| Authors: |
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Mohammad Namdar *1, kamran dehghani2 1Materials Science and Engineering Department, Engineering School, Amirkabir University, Tehran, Iran 2Amirkabir University of Technology |
| Abstract: |
| Friction stir welding (FSW) is a solid state welding process which involves joining similar or dissimilar metals using a rotating tool.This joining technique is energy efficient environment friendly and versatile.In this research, the effect of SiC nanoparticles on both sides of work piece welded quality of aluminum alloys (AA 6061) with thickness 6 mm were studied.The main aim of this work is the investigation of the influence of Silicon Carbide nano-particles on the mechanical properties of the joint prepared using friction stir butt welding of 6061 Aluminum alloy. To this end, friction stir welding (FSW) was conducted at 1000 rpm and 100 mm min-1 through three passes on double sides of work piece. The strength and the elongation were improved by 37.78 and 70.28% respectively in comparison with the specimen welded under the same conditions yet without addition of powder.The toughness and the average hardness of the weld zone were also enhanced by 67.57% and 68.8% respectively.The use of ceramic powder during FSW produced a bonded metal matrix layer on top and bottom of aluminum plates.In addition, the results obtained from the Tensile,Impact and Microhardness tests suggested that the addition of powder led to improvement in tensile strength and hardness of the joint. |
| Keywords: |
| Friction stir welding, SiC nano particle, Aluminum alloy 6061, Mechanical properties |
| Status : Paper Accepted (Poster Presentation) |
