| Microstructure, Tensile and Impact Toughness Properties of Friction Stir Welded Mild Steel |
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| 作者姓名： | A K Lakshminarayanan V Balasubramanian M Salahuddin |
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| 作者单位： | Department;Manufacturing;Engineering;Annamalai;University;Clean;Technology;Division;Ministry;Environment;Forests; |
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| 摘 要： | Microstructure, tensile and impact toughness properties and fracture location of friction stir welded AISI 1018 mild steel are revealed in this paper. The 5 mm thick AISI 1018 mild steel plates were friction stir welded with tool rotational speed of 1000 rpm and welding speed of 50 mm/min with tungsten base alloy tool. Tensile strength of stir zone is higher (8%) when compared to the base metal. This may be due to the formation of finer grains in the weld nugget region under the stirring action of the rotating tool. The ductility and impact toughness of the joints are decreased compared to the base metal and this is due to the inclusion of tungsten particles in the weld region.
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| 关 键 词： | 搅拌摩擦焊接 冲击韧性 低碳钢板 拉伸强度 显微组织 摩擦搅拌焊接 AISI 钨基合金 |
| 收稿时间： | 2009-10-15 |
Microstructure,Tensile and Impact Toughness Properties of Friction Stir Welded Mild Steel |
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| A K Lakshminarayanan,V Balasubramanian,M Salahuddin.Microstructure, Tensile and Impact Toughness Properties of Friction Stir Welded Mild Steel[J].Journal of Iron and Steel Research,2010,17(10):68-74. |
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| Authors: | A K Lakshminarayanan V Balasubramanian M Salahuddin |
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| Affiliation: | 1. Department of Manufacturing Engineering,Annamalai University,Annamalai Nagar 608002,Tamil Nadu,India
2. Clean Technology Division,Ministry of Environment and Forests,New Delhi 110003,India |
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| Abstract: | Microstructure, tensile and impact toughness properties and fracture location of friction stir welded AISI 1018 mild steel are revealed in this paper. The 5 mm thick AISI 1018 mild steel plates were friction stir welded with tool rotational speed of 1000 rpm and welding speed of 50 mm/min with tungsten base alloy tool. Tensile strength of stir zone is higher (8%) when compared to the base metal. This may be due to the formation of finer grains in the weld nugget region under the stirring action of the rotating tool. The ductility and impact toughness of the joints are decreased compared to the base metal and this is due to the inclusion of tungsten particles in the weld region. |
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| Keywords: | friction stir welding tensile property impact toughness mild steel |
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