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Abstract The grain sizes and grain orientations of Sn and Bi phases in Sn-58Bi alloy are investigated. We find that the grain size of Bi is larger than that of… Click to show full abstract
Abstract The grain sizes and grain orientations of Sn and Bi phases in Sn-58Bi alloy are investigated. We find that the grain size of Bi is larger than that of Sn. Tensile test and two-dimensional simulation reveal that the ductility and yield stress decrease upon Bi coarsening after 504 h of thermal aging at 80 ∘C, and that thermal stress is crowed on the Sn-Bi phase boundaries and is higher in Bi phase than that in Sn phase. Moreover, [0001] preferred orientation of Bi phase along the normal direction of the free surface of the casting model is observed.
Journal Title: Materialia
Year Published: 2019
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