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Tensile properties and mechanical heterogeneity of friction stir welded joints of 2014 aluminum alloy 被引量:1

Tensile properties and mechanical heterogeneity of friction stir welded joints of 2014 aluminum alloy
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摘要 2014 Al alloy of 8mm in thickness was successfully welded by friction stir welding method. The experimental results show that the tensile properties of the joints are significantly affected by the welding parameters. When the weld pitch is 0.25mm/r corresponding to the rotation speed of 400r/min and the welding speed of 100mm/min, the maximum ultimate strength of the joints is 78% that of the base material. For a certain weld joint, different parts possess different mechanical properties. In the three parts of the joint, the upper part is strongest and the middle part is poorest in mechanical properties. The mechanical properties and fracture locations of the joints are dependent on the microstructure variation and micro-hardness distributions of the joints, which attributes to the different thermo-mechanical actions on the different parts of the joints. 2014 Al alloy of 8 mm in thickness was successfully welded by friction stir welding method. The experimental results show that the tensile properties of the joints are significantly affected by the welding parameters. When the weld pitch is 0.25 mm/r corresponding to the rotation speed of 400 r/min and the welding speed of 100 mm/min, the maximum ultimate strength of the joints is 78% that of the base material. For a certain weld joint, different parts possess different mechanical properties. In the three parts of the joint, the upper part is strongest and the middle part is poorest in mechanical properties. The mechanical properties and fracture locations of the joints are dependent on the microstructure variation and micro-hardness distributions of the joints, which attributes to the different thermo-mechanical actions on the different parts of the joints.
出处 《中国有色金属学会会刊:英文版》 EI CSCD 2005年第6期1248-1252,共5页 Transactions of Nonferrous Metals Society of China
关键词 机械差异 拉伸性能 搅拌摩擦焊 铝合金 焊接接头 2014 Al alloy friction stir welding mechanical properties fracture heterogeneity
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  • 1Mishra R S,Ma Z Y.Charit Ⅰ.Friction stir proccess iog:a novel techoique for fabrication of surface composite[J].Mater Sci Eng A,2003,A341:307-310.
  • 2Benavides S,Li Y,Murr L E.et al.Low temperature friction stir-welding of 2024 aluminutn[J].Seripte Materialia.1999,41(8):809-920.
  • 3Trillo E A.Murr L E.Frietion stir welding of magnesiorn alloy AZ31B[J].Journal of Materials Science Letters,2002,21(12):917-920.
  • 4Park S H C.Sato Y S,Kokawa H.Effect of mierotexture on fraeture loeation in frietion stir weld of Mg alloy AZ61 during tensile test[J].Seripta Materialia,2003,49(2):161-166.
  • 5Park S H C, Sato Y S, Kokawa H, et al, Rapid for mation of the sigma phase irt 304 stainless steel during friction stir welding[J]. Scripta Materialia, 2003, 49(12): 1175-1180.
  • 6Reynolds A P, Tang Wei, Gnaupel-Herold T, et al.Structure, properties, and residual stress of 304L stainless steel friction stir welds[J]. Scripta Materialia, 2003, 48(9): 1289- 1294.
  • 7Lee W B, Jung S B. The joint properties of copper by friction stir welding[J]. Materials Letters, 2004, 58(6): 1041 - 1046.
  • 8Prado R A, Murr L E, Shindo D J, et al. Tool wear in the friction-stir welding of aluminum alloy 6061q-20%Al2O3: a preliminary study[J]. Scripta Materialia,2001, 45: 75-80.
  • 9Prado R A, Murr L E, Soto K F, et al. Self-optimization in tool wear for friction-stir welding of Al 6061+20% Al2O3 MMC[J]. Mater Sci Eng A, 2003, A349:156 - 165.
  • 10Sato Y S, Park S H C, Michiuchi M, et al. Constitutional liquation during dissimilar friction stir welding of AI and Mg alloys [J]. Scripta Materialia, 2004,50, 1233 - 1236.

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