Abstract:The 7055 aluminium alloy cast tube was prepared by vacuum centrifugal casting technology. The radial and axial microstructure of the alloy was observed by optical microscope and electron probe. The results showed that the as-cast microstructure is uniform and fine equiaxed, and intermetallic compounds are distributed at grain boundaries. In addition, the circumferential grain size and the number of intermetallic compounds were larger than that in the axial direction. The grains are ellipsoidal and equiaxed. Th… Show more
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