Friction stir welding of titanium alloy TiAl6V4 to aluminium alloy AA2024-T3

Friction stir welding of titanium alloy TiAl6V4 to aluminium alloy AA2024-T3
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DOI：
10.1016/j.msea.2009.07.006
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发表时间：
2009-11-25
期刊：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
影响因子：
6.4
通讯作者：
Mercado, Ulises Alfaro
Mercado, Ulises Alfaro
中科院分区：
材料科学1区
文献类型：
--
作者：
Dressler, Ulrike;Biallas, Gerhard;Mercado, Ulises Alfaro

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采用搅拌摩擦焊法成功地连接了钛合金TiAl6V4和铝合金2024-T3。研究了对接接头的显微组织、硬度和抗拉强度。焊核由细小的铝合金再结晶颗粒和钛颗粒混合而成。硬度分布表明，钛/铝界面处的硬度急剧下降，铝侧焊接后组织发生了变化。接头的极限抗拉强度达到AA2024-T3母材强度的73%。(C)2009爱思唯尔B.V.保留所有权利。
Titanium alloy TiAl6V4 and aluminium alloy 2024-T3 were successfully joined by friction stir welding. Microstructure, hardness and tensile strength of the butt joint were investigated. The weld nugget exhibits a mixture of fine recrystallized grains of aluminium alloy and titanium particles. Hardness profile reveals a sharp decrease at titanium/aluminium interface and evidence of microstructural changes due to welding on the aluminium side. The ultimate tensile strength of the joint reached 73% of AA2024-T3 base material strength. (C) 2009 Elsevier B.V. All rights reserved.