期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 460, 期 1-2, 页码 535-538出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2007.06.009
关键词
friction stir welding; dissimilar metals; lap joints; intermetallic compounds
This paper focuses on the microstructural and mechanical properties of the friction stir welding (FSW) of 1060 aluminum alloy to a commercially pure copper. A number of FSW experiments were carried out to obtain the optimum mechanical properties by adjusting the rotational speed and welding speed in the range of 750-1500 rpm and 30-375 mm/min, respectively. Various microstructures with different morphologies and properties were observed in the stir zone. The results indicated that Al4Cu9, AlCu and Al2Cu are the main intermetallic compounds formed in the interfacial region. The effect of formation of hard and brittle intermetallic phase at the interface of the joints on the shear strength of the joint is discussed. (C) 2007 Elsevier B.V. All rights reserved.
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