Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8960565 | Journal of Materials Processing Technology | 2019 | 20 Pages |
Abstract
Defect-free Friction stir welded joints between the AZ91 Mg alloy and A383 Al alloy were obtained at a welding speed of 40âmm/min and a rotational speed of 900ârpm. Mg and Al were intermixed and presented intercalated strips microstructure. The second phases Si, Al3Mg2, Al12Mg17 and Mg2Si distributed uniformly in stir zone at a rotational speed of 900ârpm, and there is a narrow intermetallic compounds layer (â¼10âμm) at the interface of the two base metals. The tensile strength of the dissimilar AZ91/A383 joint is 93âMPa, which is approximately 45% of the A383 alloy. The sufficient material intermixing and uniform distribution of second phases are helpful to the joint properties.
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Authors
Peiqi Li, Guoqiang You, Hengyu Wen, Wei Guo, Xin Tong, Sha Li,